AN2273:Building an NFS DHCP/BOOTP Server for Use with
Contents
1. 32 GPRs 32 FPRs 155 SPRs Assembler Init 895 opcodes HHHHHH HHH HHRHH HEHEH HHHHH HHHHH HH HHHHHH HHH HTH H EHEHEH Version 12 3 Metaware Build Released October 25 2001 Written by Motorola s RISC Applications Group Austin TX System Sandpoint X3 with Unity MPMC8240 Processor MPC8240 V1 1 250 MHz Memory 100 MHz Memory Map B CHRP 64MB at 3 1 1 1 Copyright 1993 2001 Refer to history c for release info DINK32 MPC8240 gt gt sb k 57600 Baud rate changing to 57600 DINK32 MPC8240 gt gt dl k Download from Keyboard Port 19803 lines received Download complete DINK32 MPC8240 gt gt sb k 9600 Baud rate changing to 9600 changes errata and fixes DINK32 MPC8240 gt gt go 900000 loaded at 00900000 009091B8 relocated to 00800000 008091B8 Zimage at 00906000 0099968C avail ram 00400000 00800000 Linux PPC load Uncompressing Linux done Now booting the kernel Total memory 32MB using OkB for hash table Linux version 2 4 2 hh120 2001 0315 release MontaVista 2 Wed Feb 20 16 56 48 CST 2002 Freescale SPS Sandpoint Test Platform Sandpoint port C 2000 2001 MontaVista Software at 00000000 maurie appslab2 sps mot com gcc version 2 95 3 Inc source mvista com Building an NFS DHCP BOOTP Server for Use With Sandpoint and MVP Linux For2. Altivec Version XX X Metaware Build Released Interim Release Built on Apr 4 2002 23 24 45 Written by Motorola s RISC Applications Group Austin TX System MVP Multi processor V ger Platform 60XBus Processor MPC7450 V2 1 600 MHz Memory 100 MHz Memory 128MB at 6 1 1 1 Copyright Inc 1993 2002 Refer to history c for release info changes errata and fixes MultiProcessor Status CPUO MPC7450 600 MHz active CPU1L MPC7450 600 MHz active DINK32 MPC7450 0 1 gt gt dl k b o 900000 DINK32 MPC7450 0 2 gt gt go 900000 Building an NFS DHCP BOOTP Server for Use With Sandpoint and MVP Linux For More Information On This Product Go to www freescale com Freescale Semiconductor MVP lmrcCd memspeed 00000064 delay test cpu_flag DEADFOOF parking cpul in bootloader LM loaded at 00900000 009B05F0 relocated to 00800000 OO8BO5F0 avail ram 00400000 00800000 Linux PPC load Uncompressing Linux done signalling cpul to park in kernel code cpul Parking cpu_flag 00002000 Now booting the kernel hhrhp setup_arch enter setup_arch bootmem mvp _setup_arch enter mvp _setup_arch L2CR mvp setup arch find bridges t64260 base already set skipping ioremap vp _setup_arch exit rch exit t64260 init _irg enter t64260 init _irg GPP gt levelint t64260 init irq exit t6 4260mpsc_ console init enter t_ console setup enter t_ console setup exit
3. and apply to all sections that follow Refer to Chapter 12 of The Official Red Hat Linux Customization Guide found on http www redhat com for more information NOTE Changes to a configuration file do not take effect until the DHCP daemon is restarted using the following command service dhcpd restart 6 2 2 DHCP Daemon Configuration File Before making any changes please read the cautionary note found in the introduction to Part VI Dynamic Host Configuration Protocol DHCP Edit the etc dhcpd conf file using the following dhcpd conf file and inserting the appropriate IP addresses allow bootp subnet 163 11 104 0 netmask 255 255 255 0 option routers 163 11 104 254 group host realtek1 hardware ethernet 00 40 c7 87 50 b2 fixed address 163 11 104 163 filename vmlinuz freescal e sandpoint option root path opt hardhat devkit ppc 82xx target host mvp1 hardware ethernet fe ff f 00 00 01 fixed address 163 11 104 164 filename vmlinuz freescale sandpoint option root path opt hardhat devkit ppc 82xx target Building an NFS DHCP BOOTP Server for Use With Sandpoint and MVP Linux For More Information On This Product Go to www freescale com Freescale Semiconductor Inc Configuring DHCP 6 2 2 1 Line by Line Explanation The DHCP daemon configuration file is explained here 1 10 11 12 13 allow bootp The NFS booting Linux client will issue a BO
4. General Information e xinetd 2 3 3 1 1386 rpm NOTE This is the current version for Red Hat V7 2 You must have some version of xinetd installed for Red Hat V7 2 and Yellow Dog V2 1 e netkit_base 0 11 15mdk NOTE This is the current version of inetd for Mandrake V7 0 Part IV Installing the MontaVista CDK V2 0 Covered in this section is a summary of general information to assist in installing MontaVista Hard Hat Linux CDK V2 0 an overview of the corrections and differences to be considered and directory locations 4 1 General Information You must install the PPC Cross Development Kit V2 0 which includes the target boot disk image Obtain the MontaVista Hard Hat Linux CDK V2 0 from the MontaVista web site www mvista com Install the PPC Linux kernel For a host system that is based on a processor that implements the PowerPC Mac G4 you will use the native GNU tool chain For host systems not based on the PowerPC architecture install the PPC GNU cross tool chain In both cases the user must produce a code kernel for the PowerPC architecture A complete discussion on building the kernel is given in Application Note AN2222 D Porting Linux to the MPC8245 Follow the instructions supplied with the MontaVista distribution for the proper install In this case install the 82xx kernel and tools for a cross hosted development described in Chapter 2 of Hard Hat Linux 2 0 Journeyman Edition Installation and Setup Guide available from M
5. Memory BAT mapping BAT2 32Mb BAT3 0Mb residual OMb Total memory 32MB using 64kB for hash table at c01 QO Q QQQQYWZQ Inc Splash Screen for MVP e0000 Linux version 2 4 19 pre4 maurie appslab2 sps mot com gcc version 2 95 3 20010315 release MontaVista 3 Thu Apr 4 09 40 08 C cpu 0 12cr now 0x80000000 hidO 0x8411c0bc l2cr 0x80000000 1l3cr Ox 0 CNTLO 0Ox00007777 CNTL1 Ox00000000 CNTL2 0x00888888 GPP_IO 0x01800000 GPP LEVEL 0x000002c6 GPP VALUE GPP_INTR_CAUSE Oxfd7fffff GPP_INTR_MASK 0x00000000 CNTLO 0Ox00007777 CNTL1 Ox00000000 CNTL2 0x00888888 GPP_IO 0x81800020 GPP_LEVEL 0x0100ffc0 GPP_VALUE GPP_INTR_CAUSE Oxfd7fffff GPP_INTR_MASK 0x0000ffc0 MVP Freescale Vger Platform Evaluation Board MVP port C 2001 MontaVista Software Inc source mv On node 0 totalpages 8192 zone 0 8192 pages zone 1 0 pages zone 2 0 pages ST 2002 CNTL3 0x00090000 Oxed80 d36 CNTL3 0x00000000 0xed800030 ista com Building an NFS DHCP BOOTP Server for Use With Sandpoint and MVP Linux For More Information On This Product Go to www freescale com Freescale Semiconductor Inc Splash Screen for MVP Kernel command line console ttyS0 115200 ip on time init WARNING HARDCODED FREQUENCY time init decrementer frequency 25 000000 MHz gt64260mpsc_ console init exit Calibrating delay loop 599 65 BogoMIPS Memory 30264k available 1160k kernel code 652k data 72k init
6. tmp var lock var run INIT Entering runlevel 2 Starting system log daemon syslogd klogd Starting internet superserver inetd Freescale Applications team in conjuction with MontaVista Software s Hard Hat Linux 2 0 163 11 104 164 login maurie Password Last login Thu Jan 1 00 12 09 1970 from 163 11 105 183 on pts 0 Linux 163 11 104 164 2 4 19 pre4 3 Thu Apr 4 09 40 08 CST 2002 ppc unknown Welcome to MontaVista Software s Hard Hat Linux in conjuction with Freescale applications team maurie 163 11 104 164 S ls dhrystone_ cross ppc dhrystone_cross ppc tar env mt vdink32 vdink32_old maurie 163 11 104 164 S users maurie mvpl maurie 163 11 104 164 S su Password root 163 11 104 164 shutdown h now Broadcast message from root console Thu Jan 1 00 20 50 1970 The system is going down for system halt NOW INIT Switching to runlevel 0 INIT Sending processes the TERM signal INIT Sending processes the KILL signalStopping portmap daemon portmap Stopping internet superserver inetd Stopping system log daemon klogd syslogd Sending all processes the TERM signal done Building an NFS DHCP BOOTP Server for Use With Sandpoint and MVP Linux For More Information On This Product Go to www freescale com Freescale Semiconductor Inc Splash Screen for MVP Sending all processes the KILL signal done Unmounting remote filesystems done Deactivating swap don
7. 0k highmem Dentry cache hash table entries 4096 order 3 32768 bytes Inode cache hash table entries 2048 order 2 16384 bytes Mount cache hash table entries 512 order 0 4096 bytes Buffer cache hash table entries 1024 order 0 4096 bytes Page cache hash table entries 8192 order 3 32768 bytes POSIX conformance testing by UNIFIX PCI Probing PCI hardware Activating ISA DMA hang workarounds Linux NET4 0 for Linux 2 4 Based upon Swansea University Computer Society NET3 039 Initializing RT netlink socket Starting kswapd JFFS2 version 2 1 C 2001 Red Hat Inc designed by Axis Communications AB pty 256 Unix98 ptys configured gt_mpsc_init exit block 64 slots per queue batch 16 RAMDISK driver initialized 16 RAM disks of 4096K size 1024 blocksize userflash 0x1000000 at Oxfe000000 Amd Fujitsu Extended Query Table v1 1 at 0x0040 number of CFI chips 1 Creating 3 MTD partitions on MVP User flash 0x00000000 0x00e00000 fs 0x00e00000 0x00f00000 kernel 0x00 00000 0x01000000 Dink32 bootflash 0x1000000 at Oxff000000 CFI Found no MVP Boot flash device at location zero map probe failed for bootflash NET4 Linux TCP IP 1 0 for NET4 0 IP Protocols ICMP UDP TCP IGMP IP routing cache hash table of 512 buckets 4Kbytes TCP Hash tables configured established 2048 bind 2048 gt64260 eth open Assigned IRQ 32 to gt64260 etho etho link state GT 100 nLink HD nFC mii 10 nLink HD nF
8. Read very carefully the cautionary note found in Part VI Dynamic Host Configuration Protocol DHCP Install set up and start a DHCP server Install set up and start a TFTP protocol Create a symbolic link to the boot kernel Set up NFS includes exports file set up Set up a hostname Building an NFS DHCP BOOTP Server for Use With Sandpoint and MVP Linux For More Information On This Product Go to www freescale com Freescale Semiconductor Inc Server Environment Part Ill Server Machine This section describes the server environment identifying the software releases used and details the Red Hat Package Manager packages RPMs that are required to build the server 3 1 Server Environment Two server platforms are available the G4 Mac and the PC The instructions shown here are identical regardless of which platform is used The process defined in this document was executed using three different servers RedHat Linux 7 2 on a PC Pentium 166MHz and Mandrake LinuxV7 0 on a PC Pentium 166MHz it was also executed on the G4 PPC using Yellow Dog Linux V2 1 It is critical that per the platform selected the NFS connected boot image must include the object code for that specific target system In this case both target systems that is the Pentium 166 MHz PC which does not support PowerPC architecture and G4 PPC which does implement PowerPC architecture MontaVista CDK V2 0 supplies this NFS connected boot image Th
9. More Information On This Product Go to www freescale com Freescale Semiconductor Inc Splash Screen for Sandpoint On node 0 totalpages 8192 zone 0 8192 pages zone 1 0 pages zone 2 0 pages Kernel command line OpenPIC Version 1 2 1 CPUs and 24 IRQ sources at 7f d0000 OpenPIC timer frequency is 100 000000 MHz time init decrementer frequency 24 753087 MHz Calibrating delay loop 164 65 BogoMIPS Memory 30580k available 1052k kernel code 452k data 88k init 0k highmem Dentry cache hash table entries 4096 order 3 32768 bytes Buffer cache hash table entries 1024 order 0 4096 bytes Page cache hash table entries 8192 order 3 32768 bytes Inode cache hash table entries 2048 order 2 16384 bytes POSIX conformance testing by UNIFIX PCI Probing PCI hardware Linux NET4 0 for Linux 2 4 Based upon Swansea University Computer Society NET3 039 Starting kswapd v1 8 pty 256 Unix98 ptys configured block queued sectors max low 20245kB 6748kB 64 slots per queue RAMDISK driver initialized 16 RAM disks of 4096K size 1024 blocksize Uniform Multi Platform E IDE driver Revision 6 31 ide Assuming 33MHz system bus speed for PIO modes override with idebus xx W82C105 IDE controller on PCI bus 00 dev 59 W82C105 chipset revision 5 W82C105 100 native mode on irq 17 ideO BM DMA at Oxbfffd0 Oxbfffd7 BIOS settings hda pio hdb pio SL82C105 command word 5 IDE timing 00000909 resetting to PIOO timing idel BM DMA
10. 1 General DHCP Documentation To configure a DHCP server first create a configuration file Composed of two types of statements parameters and declarations the configuration file stores network information for clients including e Parameters determines the following What network configuration options to send a client Ifa task should be performed How the task is to be performed e Declarations describe the network and its clients Declarations also provide addresses for the clients There are two distinct declaration options Global declarations apply to all network clients An individual option declaration applies to a specific client system Building an NFS DHCP BOOTP Server for Use With Sandpoint and MVP Linux For More Information On This Product Go to www freescale com Freescale Semiconductor Inc Configuring DHCP Consider the following points when developing a configuration file e Simplify formatting by using extra tabs or blank lines in the configuration file e Lines beginning with a hash mark are comments e Key words are not case sensitive e Parameters beginning with the option keyword are required to configure DHCP options e Parameter statements not beginning with the option keyword either control the DHCP server behavior or provide non optional values e Global parameters are those parameter declarations including options found prior to a section surrounded by curly brackets
11. 5 5 2 RAM Disk If you are using a RAM disk for your system see Part V in Applicaton Note AN2222 D Porting Linux to the MPC8245 Building an NFS DHCP BOOTP Server for Use With Sandpoint and MVP Linux For More Information On This Product Go to www freescale com Freescale Semiconductor Inc NFS Remote Boot 5 3 NFS Remote Boot The NFS remote boot from a server onthe network is the subject of this paper Part VI Dynamic Host Configuration Protocol DHCP This section outlines how to set up and configure dynamic host configuration protocol DHCP and includes the necessary code for the DHCP daemon configuration file a line by line explanation of that code and instructions for restarting the DHCP daemon CAUTION Do not copy IP addresses verbatim from this document use a correct IP address for your network Do not have more than one DHCP server active per network Refer to Part VI Dynamic Host Configuration Protocol DHCP 6 1 Set Up DHCP Before configuring the DHCP ensure that it is installed Select a method based on the version of Linux being used e Red Hat V7 x and Yellow Dog V2 1 Ensure that the file var lib dhcp dhcpd leases exits or create an empty file with the touch command e Red Hat V6 x Ensure that the file var state dhcp dhcpd leases exits or create an empty file with the touch command 6 2 Configuring DHCP The following sections address configuring the DHCP 6 2
12. 6 380 456 English 46 8 52200080 English 49 89 92103 559 German 33 1 69 35 48 48 French support freescale com Japan Freescale Semiconductor Japan Ltd Headquarters ARCO Tower 15F 1 8 1 Shimo Meguro Meguro ku Tokyo 153 0064 Japan 0120 191014 or 81 3 5437 9125 support japan freescale com Asia Pacific Freescale Semiconductor Hong Kong Ltd Technical Information Center 2 Dai King Street Tai Po Industrial Estate Tai Po N T Hong Kong 800 2666 8080 support asia freescale com For Literature Requests Only Freescale Semiconductor Literature Distribution Center P O Box 5405 Denver Colorado 80217 1 800 441 2447 or 303 675 2140 Fax 303 675 2150 LDCForFreescaleSemiconductor hibbertgroup com Information in this document is provided solely to enable system and software implementers to use Freescale Semiconductor products There are no express or implied copyright licenses granted hereunder to design or fabricate any integrated circuits or integrated circuits based on the information in this document Freescale Semiconductor reserves the right to make changes without further notice to any products herein Freescale Semiconductor makes no warranty representation or guarantee regarding the suitability of its products for any particular purpose nor does Freescale Semiconductor assume any liability arising out of the application or use of any product or circuit and specifically disclaims any and all liabilit
13. C ANnc AN gt64260 eth open Assigned IRQ 33 to gt 64260 ethl ethl MII said 0 GT said 9 restarting autoneg ethl link state GT 100 Link HD nFC ethl changed link status to DOWN mii 10 nLink HD nFC ANnc AN Sending DHCP requests ethl changed link status to UP NETDEV WATCHDOG eth0 transmit timed out s OK IP Config Got DHCP answer from 163 11 104 162 my address is 163 11 104 164 Building an NFS DHCP BOOTP Server for Use With Sandpoint and MVP Linux For More Information On This Product Go to www freescale com Freescale Semiconductor Inc Splash Screen for MVP IP Config Complete device ethl addr 163 11 104 164 mask 255 255 255 0 gw 163 11 104 254 host 163 11 104 164 domain nis domain none bootserver 163 11 104 162 rootserver 163 11 104 162 rootpath opt hardhat devkit ppc 82xx target NET4 Unix domain sockets 1 0 SMP for Linux NET4 0 Looking up port of RPC 100003 2 on 163 11 104 162 Looking up port of RPC 100005 1 on 163 11 104 162 VFS Mounted root nfs filesystem readonly Freeing unused kernel memory 72k init INIT version 2 78 booting Activating swap Checking all file systems Parallelizing fsck version 1 19 13 Jul 2000 Mounting local filesystems not mounted anything Cleaning etc network ifstate Setting up IP spoofing protection rp filter Disable TCP IP Explicit Congestion Notification done Configuring network interfaces done Starting portmap daemon portmap Cleaning
14. Freescale Semiconductor Inc Rev 1 1 6 2003 Building an NFS DHCP BOOTP Server for Use With Sandpoint and MVP Linux Maurie Ommerman This document describes the steps necessary to configure a Linux DHCP BOOTP server for CPD Applications use with the MontaVista Hard Hat Linux CDK V2 0 running on either a Sandpoint or MVP risc10 email evaluation board client PowerPC microprocessors are supported on the Sandpoint and mot com MVP evaluation boards This document covers the following topics Part Page Part I Introduction 2 Part II General Methodology Part III Server Machine T Part IV Installing the MontaVista CDK V2 0 8 Part V Linux Boot Methods 9 Part VI Dynamic Host Configuration Protocol DHCP 10 Part VII Trivial File Transfer Protocol TFTP 13 Part VIII Set up Network File System 16 Part IX Set Up resolv conf File 17 Part XI Host Ethernet Diagnostic Commands 18 Part XII Starting Linux with the Executable 20 Part XIII Revision History 29 CAUTION Do not copy IP addresses verbatim from this document use a correct IP address for your network Do not have more than one DHCP server active per network Refer to Part VI Dynamic Host Configuration Protocol DHCP Freescale Semiconductor Inc 2004 All rights reserved ie aot f ftreescaie For More Information On This semiconductor Go to www freescale Freesca
15. OTP request to the network This server will respond to the request by sending a valid IP address or refusing an unknown requester subnet 163 11 104 0 netmask 255 255 255 0 This line denotes the subnet for the requesters in this case any requester on the triplet net 163 11 104 The netmask indicates to listen to all nets Specify an appropriate subnet for your installation option routers 163 11 104 254 This is the address of the router for this subnet specify a correct router for your network group This line indicates the beginning of this group of clients host realtek1 In this case there are two clients This is the first client and its name is realtek1 because we are using a Realtek ethernet card on a sandpoint since there is no internal ethernet interface It could be any name you desire however it should correspond to the client s name Even though this is setting up a client connection this file calls it a host hardware ethernet 00 40 c7 87 50 b2 This is the MAC address of the client When the client sends a BOOTP request on this subnet it sends it s MAC address Specify the correct MAC address for your client fixed address 163 11 104 163 When the client with this specified MAC address issues the BOOTP request this server will respond with this IP address The client will then use this IP address Specify an appropriate IP address here filename vmlinuz freescal e sandpoint This is the initial boo
16. X DRP RX OVR etho 1500 0 4828 0 0 0 2433 0 lo 3904 0 0 0 0 0 0 0 Building an NFS DHCP BOOTP Server for Use With Sandpoint and MVP Linux For More Information On This Product Go to www freescale com irtt Iface 0 etho 0 etho TX OK TX ERR TX DRP TX OVR Flg 0 0 0 BRU 0 LRU Freescale Semiconductor Inc Splash Screen for Sandpoint maurie 163 11 104 163 netstat 1 Active Internet connections only servers Proto Recv Q Send Q Local Address Foreign Address State tcp 0 0 sunrpc Xek LISTEN tcp 0 0 telnet Wek LISTEN udp o 0 800 udp 0 0 sunrpc sara Active UNIX domain sockets only servers Proto RefCnt Flags Type State I Node Path root 163 11 104 163 cd etc root 163 11 104 163 etc cat var log messages Nov 30 05 20 52 163 syslogd 1 3 3 restart Nov 30 05 20 52 163 kernel klogd 1 3 3 log source proc kmsg started Nov 30 05 20 52 163 kernel Cannot find map file Nov 30 05 20 52 163 kernel No module symbols loaded Nov 30 05 20 52 163 kernel Total memory 32MB using OkB for hash table at 00 000000 Nov 30 05 20 52 163 kernel Linux version 2 4 2 hh120 maurie appslab2 sps mot com gcc version 2 95 3 20010315 release MontaVista 2 Wed Feb 20 16 56 48 CST 2002 Nov 30 05 20 52 163 kernel Freescale SPS Sandpoint Test Platform Nov 30 05 20 52 163 kernel Sandpoint port C 2000 2001 MontaVista Software Inc source mvista com Building an NFS DHCP BOOTP Server for Use Wi
17. at Oxbfffd8 Oxbfffdf BIOS settings hdc pio hdd pio SL82C105 command word 5 IDE timing 000003e4 resetting to PIOO timing loop loaded max 8 devices Serial driver version 5 02 2000 08 09 with MANY PORTS SHARE IRQ SERIAL PCI ena bled ttySooO at Ox03f8 irq 4 is a 16550A ttySOl at Ox02f8 irq 3 is a 16550A 8139too Fast Ethernet driver 0 9 13 loaded eth0 RealTek RTL8139 Fast Ethernet at Oxbfffff00 00 40 c7 87 50 b2 IRQ 19 NET4 Linux TCP IP 1 0 for NET4 0 IP Protocols ICMP UDP TCP IP routing cache hash table of 512 buckets 4Kbytes TCP Hash tables configured established 2048 bind 2048 Sending BOOTP requests OK IP Config Got BOOTP answer from 163 11 104 162 my address is 163 11 104 163 NET4 Unix domain sockets 1 0 SMP for Linux NET4 0 Looking up port of RPC 100003 2 on 163 11 104 162 Looking up port of RPC 100005 2 on 163 11 104 162 VFS Mounted root NFS filesystem readonly Freeing unused kernel memory 88k init 4k openfirmware modprobe modprobe Can t open dependencies file lib modules 2 4 2 hh120 module Building an NFS DHCP BOOTP Server for Use With Sandpoint and MVP Linux For More Information On This Product Go to www freescale com Freescale Semiconductor Inc Splash Screen for Sandpoint s dep No such file or directory INIT version 2 78 booting Activating swap Checking all file systems Parallelizing fsck version 1 19 Mounting local filesystems not mounted anything Cl
18. d NFS stop Jetc re d init d NFS start or service NFS restart 8 2 2 Run Daemon with Each Boot To run the NFS daemon on every boot use the following sbin chkconfig NFS on 8 2 3 Synchronize the NFS Daemon The following command synchronizes the NFS daemon usr sbin exportfs ra Part IX Set Up resolv conf File Before making any changes please read the cautionary note found in Part VI Dynamic Host Configuration Protocol DHCP Once everything is working and the client is booted via NFS then all network facilities will be available However domain name resolution will not work until the target has the resolv conf file correctly built Building an NFS DHCP BOOTP Server for Use With Sandpoint and MVP Linux For More Information On This Product Go to www freescale com Freescale Semiconductor Inc Line by Line Explanation NOTE The resolv conf file must be built in the target client root file system which is opt hardhat devkit ppc 82xx target etc In this location this file affects the client not the server There is also a resolv conf file in the host server root file system which only affects the server not the client In the following example of the resolv conf file be certain to supply the correct IP address domain and search path names nameserver 192 55 22 4 nameserver 192 5 249 nameserver 192 5 248 76 domain sps mot com search sps mot com 9 1 Line by Line Explanation T
19. e Unmounting local filesystems done Power down 12 2 1 MVP Sample Session The following text is from an MVP sample session Input commands are shown in bold text Connected to appslab4 sps mot com Escape character is MontaVista Software s Hard Hat Linux 2 0 Linux ppe 2 4 19 pre4 163 111 104 164 login mvpl Password Last login Thu Jan 1 00 18 26 1970 from appslabl sps mot com on pts 0 Linux 163 11 104 164 2 4 19 pre4 3 Thu Apr 4 09 40 08 CST 2002 ppc unknown Welcome to MontaVista Software s Hard Hat Linux in conjuction with Freescale applications team mvp1 163 11 104 164 whoami mvpl mvp1 163 11 104 164 1s dhrystone_ cross ppc dhrystone_cross ppc tar env mt vdink32 vdink32_old mvp1 163 11 104 164 Broadcast message from root console Thu Jan 1 00 20 50 1970 The system is going down for system halt NOW Connection closed by foreign host maurie appsla Building an NFS DHCP BOOTP Server for Use With Sandpoint and MVP Linux For More Information On This Product Go to www freescale com Freescale Semiconductor Inc Splash Screen for Sandpoint 12 3 Splash Screen for Sandpoint The splash screen is shown here indicates that NFS was enabled during configuration the Realtek 8139 ethernet card was specified and BOOTP was enabled Duart Initialized Skipping environment variables setup Memory Enabled 64MB at CL 3 Caches Enabled L1 ICache L1 DCache Register Inits
20. e following commands to restart TFTP killall HUP xinetd Building an NFS DHCP BOOTP Server for Use With Sandpoint and MVP Linux For More Information On This Product Go to www freescale com Freescale Semiconductor Inc Set Up the Exports File or etc init d xinetd stop etc init d xinetd start or service xinetd restart Part VIII Set up Network File System This section details the steps to setting up the NFS including setting up the exports file and controlling the NFS daemon 8 1 Set Up the Exports File The server refers to the exports file to determine which requesters via their IP address are qualified to access that is export this root file system Edit the etc exports file by adding the appropriate line described in Section 8 1 1 Valid Line for Red Hat V7 2 or Section 8 1 2 Recommended Line 8 1 1 Valid Line for Red Hat V7 2 The following line may be used for Red Hat Linux V7 2 opt hardhat devkit ppc 82xx target 163 11 104 rw no_root_squash no_all_ squash 8 1 2 Recommended Line The following form works with all three Linux releases for Red Hat V7 2 MontaVista V7 0 and Yellow Dog V2 1 This is the recommended version opt hardhat devkit ppc 82xx target 163 11 104 0 24 rw no_root_squash no_all_ squash or opt hardhat devkit ppc 82xx target 163 11 104 0 255 255 255 0 rw no_root_squash no_all_squash This allows all clients on the subnet 163 11 104 to have root access t
21. eaning etc network ifstate Setting up IP spoofing protection rp filter Configuring network interfaces done Starting portmap daemon portmap Cleaning tmp var lock var run INIT Entering runlevel 2 Starting system log daemon Starting internet superserver 13 Jul 2000 syslogd klogd inetd MontaVista Software s Hard Hat Linux 2 0 163 11 104 163 login 12 3 1 Sandpoint Sample Session The following text is from a Sandpoint sample session Input commands are shown in bold text 163 11 104 163 login maurie Password Last login Tue Nov 30 12 13 40 1999 from 163 11 105 124 on pts 0 Linux 163 11 104 163 2 4 2 hh120 2 Wed Feb 20 16 56 48 CST 2002 ppc unknown Welcome to MontaVista Software s Hard Hat Linux maurie 163 11 104 163 cat etc hosts 127700 localhost localdomain localhost maurie 163 11 104 163 cat etc exports cat etc exports No such file or directory maurie 163 11 104 163 cat etc resolv conf resolv conf This file is the resolver configuration See resolver 5 nameserver nameserver nameserver domain sps search sps file 192 55 22 4 192 5 249 4 192 5 248 76 mot com mot com maurie 163 11 104 163 netstat r Kernel IP routing table Destination Gateway Genmask Flags MSS Window 163 11 104 0 K 255 255 255 0 U 40 0 default 163 11 104 254 0 0 0 0 UG 40 0 maurie 163 11 104 163 netstat i Kernel Interface table Iface MTU Met RX OK RX ERR R
22. ek1l 00 40 c7 87 50 b2 via etho Feb 26 11 41 17 appslab2 rpc mountd authenticated mount request from 163 11 104 163 800 for opt hardhat devkit ppc 82xx target opt hardhat devkit ppc 82xx target Building an NFS DHCP BOOTP Server for Use With Sandpoint and MVP Linux For More Information On This Product Go to www freescale com Freescale Semiconductor Inc Downloading the Executable Part XII Starting Linux with the Executable Part XII Starting Linux with the Executable indicates where instructions can be found to download the executable gives examples of the splash screens and provides a sample Sandpoint session 12 1 Downloading the Executable See AN2222 D Porting Linux to the MPC8245 for information on downloading the executable and starting the NFS version of Linux on the Sandpoint or MVP board 12 2 Splash Screen for MVP The splash screen is shown here indicates that NFS was enabled during configuration the Galileo ethernet device was specified and BOOTP was enabled Baud rate changing to 115200 enable port 74 75 MIRO GetIdentity skipped for now Memory Enabled 128MB at CL 6 Caches Enabled L1 ICache L1 DCache Register Inits 32 GPRs 32 FPRs 155 SPRs 32 VECs Assembler Init 895 opcodes HHHHHH HH HoH ot RHEE RHE HF HE H HF HHHHH HHHHH H HHHHHH HHH HE HHRHH HHHHHH
23. ervice is provided primarily for booting Most sites run this only on machines acting as boot servers Do not uncomment this unless you need it tftp dgram udp wait root usr sbin tcpd in tftpd 7 2 Red Hat V7 2 and Yellow Dog V2 1 There is no etc inetd conf instead the same functionality is created in the following manner Create or edit this file etc xinetd d tftp 7 3 TFTP File Below is the code for the TFTP file being used service tftp 7 3 1 socket _type dgram protocol udp wait yes user root server usr sbin in tftpd server args s tftpboot disable no Line by Line Explanation The TFTP file code is explained here 1 service tftp Required first line to specify the service Indicate start of information socket _type dgram Using datagram service protocol udp The protocol is udp wait yes wait for service user root This service must run in root server usr sbin in tftpd We chose to use our own local server using the local TFTP service The MontaVista target also contains a TFTP service which is suggested in Hard Hat Linux 2 0 Journeyman Edition Installation and Setup Guide The alternative line to use the service supplied by MontaVista is server opt hardhat host bin in tftpd Building an NFS DHCP BOOTP Server for Use With Sandpoint and MVP Linux For More Information On This Product Go to www freescale com Freescale Semiconductor I
24. failure A link is provided for the opt hardhat devkit ppc 82xx target bin directory Part XI Host Ethernet Diagnostic Commands gives instructions for Checking the status of gateway and network setup Building an NFS DHCP BOOTP Server for Use With Sandpoint and MVP Linux For More Information On This Product Go to www freescale com 1 1 Freescale Semiconductor Inc Terminology Viewing network traffic Using the message log Part XII Starting Linux with the Executable addresses downloading the executable It also provides examples of both the MVP and Sandpoint splash screens as well as a sample Sandpoint session Part XIII Revision History provides the document history Terminology The following terms are used in this document Bash shell Extension to the Bourne shell which is popular on Linux systems and is sometimes called GNU Born Again Bourne Shell This is the default shell for most Linux systems because Linux uses GNU tools exclusively Boot Program that begins at hardware reset which prepares the hardware for loading an OS BOOTP Short for bootstrap protocol this is a broadcast request from a client to a BOOTP server which is usually a DHCP server If the server determines that the client is valid an IP address is returned to the client permitting the boot process to continue Broadcast Sends a message to all listeners on an Ethernet or subnet Client A program o
25. for the IP address on which the daemon resides This daemon is supported by Mandrake Linux V7 0 IP Address Internet Protocol address a quartet of digits that represent the addressing scheme and identify the packet format The IP address is usually represented by decimal numbers that specifically identify a node in a network Each entry of the quartet has a value from 0 to 256 The representation is XXX yyy ZZZ aaa Kernel The central module of OS that interfaces the hardware to the software Building an NFS DHCP BOOTP Server for Use With Sandpoint and MVP Linux For More Information On This Product Go to www freescale com Freescale Semiconductor Inc Terminology e Mandrake Linux Product of MandrakeSoft Inc designer and distributor of desktop Linux sources and solutions e MAC Media Access Control is the physical address of an ethernet card Represented by a sextet of hex values each member has a value from 00 ff The first three members are assigned to a manufacturer the last three members are uniquely assigned by the manufacturer The representation is xx yy zz aa bb cc e MontaVista Software One of several companies that modifies and distributes Linux sources for embedded applications e MVP An evaluation board with a Galileo network interface that uses two MPC7450 processors and is capable of running an SMP Linux e NFS Network File System a protocol used to share and access files over a network regardle
26. he resolv conf file code is explained here l nameserver 192 55 22 4 IP addresses of a name server 2 nameserver 192 5 249 first alternate IP address of a name server 3 nameserver 192 5 248 76 second alternate IP address of a name server 4 domain sps mot com domain name for this network 5 search sps mot com search name for machines on this network Part X Other Problems If the sandpoint or MVP boards can not start a shell then it is necessary to add this link to the opt hardhat devkit ppc 82xx target bin directory ln s bash sh Building an NFS DHCP BOOTP Server for Use With Sandpoint and MVP Linux For More Information On This Product Go to www freescale com Freescale Semiconductor Inc Line by Line Explanation Part XI Host Ethernet Diagnostic Commands The following host ethernet diagnostic commands permit the user to check the gateway and network set up view network traffic and access the message log 11 0 1 Gateway and Network Setup Status Check Use the following command to see the status of your gateway and network setup as determined from the hostname file netstat r Kernel IP routing table Destination Gateway Genmask Flags MSS Window irtt Iface 163 11 104 0 255 255 255 0 U 40 0 O etho 127 0 0 0 255 0 0 0 U 40 0 0 lo default 163 11 104 254 0 0 0 0 UG 40 0 O etho 11 0 2 Network Traffic Viewer The following command sets up a promiscuous bit in the network mask so that all
27. le Semiconductor Inc NOTE The MontaVista Hard Hat Journeyman Edition does not fully support Yellow Dog Linux as a host Although it can be set up as a DHCP BOOTP server and perform an NFS boot the resulting root file system will be read only Because you can not change the files useful work cannot be accomplished on this platform and host combination However the full MontaVista release does support Yellow Dog Linux as a host I have not tested this full version On the other hand Red Hat V7 0 which is supported and Red Hat V7 2 which is not supported by MontaVista work correctly The NFS boot mounts the root file system read write permitting the performance of useful work on both of these platform and host combinations Part Introduction This document is organized by parts that explain the steps required summarized in Section 2 2 Required Server Steps to configure a Linux system for serving NFS remote boot from a DHCP BOOTP server Part I Introduction gives an overview of this document and defines terminology used Part II General Methodology provides an overview of client and server interaction and summarizes the steps in the configuration process Part III Server Machine discusses the server development environment and the required Red Hat package manager RPM compilers and utilities Part IV Installing the MontaVista CDK V2 0 provides general information about installi
28. nc Create a Symbolic Link 8 server args s tftpboot Our local tftp requires the s argument The MontaVista target does not requres the s argument so its line would be server args tftpboot 9 disable no Do not disable this service that is allow remote access 10 Indicates the end of information 7 4 Create a Symbolic Link TFTP can only download files in the TFTP boot directory Therefore in order for the client to download an optional kernel a link to this kernel must be placed in the TFTP boot directory Create a symbolic link in the TFTP boot directory to the boot file with the following commands cd tfitpboot In s opt hardhat devkit ppc 82xx target boot vmlinux freescal e sandpoint vmlinux f reescal e sandpoint To see the link execute this command ls 1 vmlinux freescal sandpoint As a result the link is displayed prefixed by the letter 1 as highlighted in this example lrwxrwxrwx 1 root root 67 Feb 21 10 48 vmlinux freescal e sandpoint gt opt hardhat devkit ppc 82xx target boot vmlinux freescal e sandpoint 7 5 Restart TFTP Per the Linux release being used issue the following commands as needed 7 5 1 Mandrake V7 0 Red Hat V7 0 Use any of the following commands to restart TFTP killall HUP inetd or etc re d init d inet stop etc re d init d inet start NOTE Note the stop start version is inet not inetd 7 5 2 Red Hat V7 2 and Yellow Dog V2 1 Use any of th
29. ng the CDK V2 0 and indicates where instructions can be found to produce the necessary kernel for the PowerPC architecture This section also indicates directory locations Part V Linux Boot Methods outlines common methods of booting Linux depending on the hardware used Part VI Dynamic Host Configuration Protocol DHCP repeats a critical notice regarding IP addresses and servers It also outlines how to set up and configure DHCP including The necessary code for the DHCP daemon configuration file A line by line explanation of that code Instructions for restarting the DHCP daemon Part VII Trivial File Transfer Protocol TFTP addresses the trivial file transfer protocol TFTP requirements based on the Linux software release used Also included is the code for the recommended TFTP file with a line by line explanation of the code instructions for creating a symbolic link and restarting the TFTP Part VIII Set up Network File System discusses how to set up the network file system NFS export files provides recommendations on code to be added to the export files and outlines procedures for controlling the NFS daemon Part IX Set Up resolv conf File provides directions to build the resolv conf file which performs domain name resolution The recommended code is included with a line by line explanation Part X Other Problems addresses how to resolve a common problem shell start
30. o the file system Which means that any changes made by those clients will physically change the client root file system that resides on the server This does not mean that the server s root file system is changed only the client s file system is affected However all clients that have access to this root file system can change it and there is no synchronization between them 8 2 Controlling the NFS Daemon The following sections describe how to restart the NFS daemon run the daemon with each boot and synchronize the daemon Building an NFS DHCP BOOTP Server for Use With Sandpoint and MVP Linux For More Information On This Product Go to www freescale com Freescale Semiconductor Inc Controlling the NFS Daemon 8 2 1 Restart the Daemon This section provides instructions on how to check the portmapper status start the portmapper and start restart and stop the NFS daemon 8 2 1 1 Check the Portmapper Status When restarting the NFS daemon it is necessary to have the portmap running If it is not running the port mapper must be started before starting or restarting NFS daemon Use the following command to determine the status of the portmapper service portmap status If portmap is not running then start it using the following command service portmap start 8 2 1 2 Start or Restart NFS Daemon Use the following instructions to restart stop or start NFS daemon Jetc re d init d NFS restart or etc re d init
31. ontaVista Software 4 2 Corrections and Differences The MontaVista 2 0 script mnt cdrom bin hhl host install see Hard Hat Linux 2 0 Journeyman Edition Installation and Setup Guide page 7 is designed for the Red Hat V7 0 and will not work on other versions of Red Hat This document is based on Red Hat V7 2 An easy fix for any Linux development system is to change the release name temporarily For Red Hat Linux V7 2 edit the file etc redhat release changing one line only Change Red Hat Linux release 7 2 Enigma to Red Hat Linux release 7 0 Enigma Be certain to change the line back after installing Hard Hat Linux Both the Mandrake release and the Yellow Dog release also have this etc redhat release file Hence this install script works with any Red Hat Mandrake and Yellow Dog NOTE This document is written for the Red Hat Release 7 2 All differences between this Mandrake Red Hat V7 0 and Yellow Dog V2 1 are indicated in the appropriate sections Building an NFS DHCP BOOTP Server for Use With Sandpoint and MVP Linux For More Information On This Product Go to www freescale com Freescale Semiconductor Inc Directory Locations The complete command to install the MontaVista target directory is mnt cdrom bin hhl host install install lspfreescale sandpoint 82xx This procedure has been tested on Red Hat V7 2 Mandrake V7 0 and Yellow Dog V2 1 NOTE The Yellow Dog host will get some errors during this ins
32. r AN2273 D For More Information On This Product Go to www freescale com
33. r machine that makes requests to another machine called a server CDK Cross Development Kit is a set of development tools for Intel or Mac based Linux machines to build PPC Linux objects Daemon A Linux and Unix term that refers to a small program that runs in the background and is owned by root A daemon listens for activity which it can respond to and then performs services for that activity Daemons pertinent to this document include inetd xinetd and dhcpd DINK32 Small OS debugger for the Sandpoint evaluation board DHCP Dynamic host configuration protocol used by a server to respond to client requests for automatic assignment of IP addresses dhcpd This daemon performs the DHCP service monitoring ethernet traffic to identify incoming requests for IP address assignment and responding to these requests if they are validated FTP File Transfer Protocol used for tranferring files between machines on a network Hard Hat Linux Also called hhl a product of MontaVista Software Host A machine that can be used to build kernels The host may or may not be the same architecture For example Freescale builds kernels on both a G4 machine and a Intel machine IDE Integrated Device Electronics is the standard interface for many devices including hard drives CD ROM drives and others inet inetd inet is the Internet service performed by inetd a daemon that monitors ethernet traffic to identify incoming traffic destined
34. ration for the second client 17 Close group 18 Close subnet NOTE default lease time and max lease time are not needed here they are assumed to be infinite that is the client keeps the lease until it releases it This server will only serve two clients MAC addresses 00 40 c7 87 50 b2 and fe ff ff 00 00 01 Any other client requester will be refused 6 2 3 Restarting the DHCP Daemon Assuming the DHCP daemon is running it is automatically started up when linux boots it is now necessary to restart the daemon The daemon only reads its configuration file dhcpd conf when starting Issue one of the following commands etc re d init d dhcpd restart or service dhcpd restart As a result the following should appear on the console Shutting down dhcpd OK Starting dhcpd OK Part VII Trivial File Transfer Protocol TFTP This section provides the information needed to set up the TFTP including Linux release specific instructions the TFTP file code an explanation of the TFTP file code the commands needed to create a symbolic link to the boot file and TFTP restart instructions 7 1 Mandrake V7 0 Red Hat V7 0 Edit etc inetd conf and uncomment the TFTP line as there is no TFTP file Building an NFS DHCP BOOTP Server for Use With Sandpoint and MVP Linux For More Information On This Product Go to www freescale com Freescale Semiconductor Inc Red Hat V7 2 and Yellow Dog V2 1 Tftp s
35. ss Figure 1 BOOTP Request Routine For Known Client The following steps summarize the balance of the boot process Figure 2 represents the boot record and root file system pointer request routine Building an NFS DHCP BOOTP Server for Use With Sandpoint and MVP Linux For More Information On This Product Go to www freescale com Freescale Semiconductor Inc Required Server Steps The client then configures itself using the IP address that was sent from the BOOTP server The client then requests a pointer to a boot record and a root system file The server responds with this information Using the the pointer the client may download the boot record and continues the boot process The client connects to the root file system Received Valid IP Address Client Request for DHCP BOOTP Pointers to Boot Record Server Client Can Now Access the Root and Root File System File System using IP Address IP Address dhepdcont Found in Client List etc exports Root File Root File System Pointer System Figure 2 Boot Record and Root File System Pointer Request Routine 2 2 Required Server Steps The following steps are required to build the NFS BOOTP DHCP server These steps are detailed in the sections that follow l 2 oN nn fs Install MontaVista CDK V2 0 with a target root system Build a kernel that uses an NFS boot on a host See Application Note AN2222 D Porting Linux to the MPC8245
36. ss of machine operating system or architecture e OS Operating system e RAM disk Random Access Memory that has been configured to simulate a disk drive e Red Hat Red Hat Inc is one of several companies that uses the freely distributed desktop Linux sources and packages them for distribution They developed the RPM which has become a standard for Linux e Red Hat package manager RPM Program to install and to maintain groups of Linux binary libraries documentation and other Linux style objects e Required files DHCP BOOTP servers rely on certain files that define the actions of these servers e Server A machine that services requests from clients e SMP Symmetric multiprocessing program a computer architecture that features a single operating system that uses two or more processors e Srecord or srec A file that depicts a binary object file in an ASCII representation DINK32 can download either srec or binary files See Appendix D in the DINK32 User s Manual e Sandpoint Evaluation board for Freescale MPC6xx 7xx 74xx 82xx processors This board does not include an internal ethernet card e Target Machine used with the kernel For this application note the target machine is either the Sandpoint or MVP machine e TFTP Trivial File Transfer Protocol is a simple form of the FTP that features UDP and provides no security features e UDP User DatagramProtocol a communications protocol for the Interne
37. t file that the client will use This file is in opt hardhat devkit ppc 82xx target boot NOTE Hard Hat Linux 2 0 Journeyman Edition Installation and Setup Guide page 103 lists the available boot file names option root path opt hardhat devkit ppc 82xx target This line specifies the path for the clients NFS mount All files normally in a mount root file system are here on the hard drive of the server Close host realtek1 record This ends the configuration for the first client host mvpl1 This is the second client called mvp1 which uses an mvp board with the Galileo network interface hardware ethernet fe ff f 00 00 01 This is the second client s MAC address fixed address 163 11 104 164 This is the IP that will be assigned to this client Building an NFS DHCP BOOTP Server for Use With Sandpoint and MVP Linux For More Information On This Product Go to www freescale com Freescale Semiconductor Inc Mandrake V7 0 Red Hat V7 0 14 filename vmlinuz freescal e sandpoint Again this is the initial boot file 15 option root path opt hardhat devkit ppc 82xx target Again this is the path for the NFS mount NOTE Note that both clients are now using the same system file path If either client changes anything in these directories it will affect both clients This is controlled in the file etc exports see 8 1 Set Up the Exports File 16 Close host mvp1 record This ends the configu
38. t network layer transport layer and session layer which makes it possibe to send a datagram message from one computer to an application running in another computer e User and root type Root user has super user permission to install RPMs modify create and delete all files in all directories mount and unmount file systems start and end processes and generally do anything on a Linux system Unfortunately this makes it easy to destroy the Linux development system and render it useless For that reason login as a root user only for those activities that require root permissions and revert to normal user for all other activities including building the Linux kernel However all the activities described in this paper require root permission so care should be exercised in making these recommended changes e xinet xinetd xinet is the Internet service performed by xinetd a daemon that monitors ethernet traffic to identify incoming traffic destined for the IP address on which it resides This service and daemon is supported by Red Hat Linux V7 2 or Yellow Dog Linux V2 1 Building an NFS DHCP BOOTP Server for Use With Sandpoint and MVP Linux For More Information On This Product Go to www freescale com Freescale Semiconductor Inc Overview e Yellow Dog Linux Product of Terra Soft Solutions Inc designer and distributor of of desktop Linux sources and solutions Part Il General Methodology The instructions in this applica
39. tall These errors can be ignored However the root file system will be mounted as read only on Sandpoint Red Hat V7 2 and V7 0 does not get errors and the root file system is mounted as read write and that is the expected result 4 3 Directory Locations Once installed all the code and tools will reside starting in the directory opt e opt hardhat host contains some important cross tools specifically the zsrec application that converts elf files into srecord files This directory is only created on non PPC systems e opt hardhat devkit ppc 82xx bin contains all the cross compiler tool chain for systems not based on the PowerPC architecture e opt hardhat devkit ppc 82xx target contains a linux target system that can be used to build a Linux hard drive This is the directory that is used for the NFS remote boot e opt hardhat devkit Isp contains all the kernel code for specific architectures You want the freescale sandpoint distribution Specifically you will find this distribution at opt hardhat devkit Isp freescale sandpoint linux 2 4 2_hh120 opt is owned by root and therefore you must have root permission to make any changes to these directories Part V Linux Boot Methods This section outlines common methods of booting Linux depending on the hardware used 5 1 Hard Drive Boot If you are using a hard drive for your system see Part IV in Application Note AN2222 D Porting Linux to the MPC824
40. th Sandpoint and MVP Linux For More Information On This Product Go to www freescale com Freescale Semiconductor Inc Splash Screen for Sandpoint Part XIII Revision History Table 1 lists this document s significant changes and revisions Table 1 Document History Rev No Substantial Changes 1 Initial release 1 1 Nontechnical reformatting Building an NFS DHCP BOOTP Server for Use With Sandpoint and MVP Linux For More Information On This Product Go to www freescale com Freescale Semiconductor Inc Splash Screen for Sandpoint THIS PAGE INTENTIONALLY LEFT BLANK Building an NFS DHCP BOOTP Server for Use With Sandpoint and MVP Linux For More Information On This Product Go to www freescale com Freescale Semiconductor Inc Splash Screen for Sandpoint THIS PAGE INTENTIONALLY LEFT BLANK Building an NFS DHCP BOOTP Server for Use With Sandpoint and MVP Linux For More Information On This Product Go to www freescale com Freescale Semiconductor Inc How to Reach Us Home Page www freescale com E mail support freescale com USA Europe or Locations Not Listed Freescale Semiconductor Technical Information Center CH370 1300 N Alma School Road Chandler Arizona 85224 1 800 521 6274 or 1 480 768 2130 support freescale com Europe Middle East and Africa Freescale Halbleiter Deutschland GmbH Technical Information Center Schatzbogen 7 81829 Muenchen Germany 44 129
41. tion note are identical for Red Hat Linux V7 2 Mandrake Linux V7 0 similar to Red Hat V7 0 and Yellow Dog Linux V2 1 except as noted Much of this material is based on Hard Hat Linux 2 0 Journeyman Edition Installation and Setup Guide supplied with the MontaVista distribution package Included in this section is an overview of the boot process and the steps required to build the NFS BOOTP DHCP server 2 1 Overview This overview shows the interaction between a client and the NFS BOOTP DHCP server during the boot process The process for BOOTP request is defined in the following steps The BOOTP request routine for a known client is demonstrated in Figure 1 e A boot record is loaded on the client Sandpoint or MVP initializes an ethernet driver makes a connection and broadcasts a BOOTP request which contains the client s MAC address e The BOOTP request is sent to a subnet and if no BOOTP server is listening the client times out e Ifa BOOTP server is listening it responds In this case we are using a DHCP server e The DHCP server initially accepts the BOOTP request and compares the client s MAC address to a list of known valid clients dhcpd conf file e Ifitis not a valid client the server refuses the request e Ifitis a valid client the server responds with an IP address Client DHCP BOOTP Server Bootp Request Using MAC Address dhcpd conf file MAC Address Found in Client List IP Addre
42. traffic can be seen tcpdump n i eth0 arp tcpdump listening on etho 10 59 59 380606 arp who has 163 11 104 44 tell 163 11 104 253 10 59 59 380606 arp who has 163 11 104 44 tell 163 11 104 253 11 00 01 400606 arp who has 163 11 104 44 tell 163 11 104 253 11 00 01 400606 arp who has 163 11 104 44 tell 163 11 104 253 11 0 3 Message Log All messages produced by network activity and starting and stopping services are stored in the var log messages file This is especially useful if you need to determine the MAC address of one of your clients You can inspect the traffic and look for BOOTP requests In the example shown below there is a BOOTP request from MAC address 00 40 c7 87 50 b2 which is the sandpoint realtek client If you are setting up BOOTP clients in the dhcpd conf file and you do not know the MAC address of your client then let the client issue BOOTP requests which go unanswered and look at the messages file to see the MAC address tail 10 var log messages Feb 26 10 56 39 appslab2 su pam_unix 26101 session opened for user root by maurie uid 500 Feb 26 10 59 59 appslab2 kernel ethO Setting promiscuous mode Feb 26 10 59 59 appslab2 kernel device ethO entered promiscuous mode Feb 26 11 00 04 appslab2 kernel device ethO left promiscuous mode Feb 26 11 41 16 appslab2 dhcpd BOOTREQUEST from 00 40 c7 87 50 b2 via etho Feb 26 11 41 16 appslab2 dhcpd BOOTREPLY for 163 11 104 163 to realt
43. us the target system has PowerPC executables and can reside on either a non PowerPC system or on a system using the PowerPC architecture To create a server machine do one of the following e Install Linux on a PC using either the RedHat or Mandrake distribution e Install LinuxPPC on a G4 running Mac OS using the Yellow Dog distribution 3 2 Required Red Hat Package Manager Packages RPMs Certain RPMs must be installed depending on the version of Linux being used The following sections indicate the RPMs and dependencies 3 2 1 MontaVista CDK V2 0 In order to build an srecord use of zsrec instruction is required that is only available from MontaVista and is included on the MontaVista release in the common directory of the CDROM See Part IV Installing the MontaVista CDK V2 0 for additional information The instructions to build a kernel and the related srecord are found in AN2222 D Porting Linux to the MPC8 amp 245 available on the Freescale web site www freescale com e rpm ihv hhl zsrec 1 05 1386 rpm 3 2 2 Host System Load the appropriate RPM depending on the version of Linux being used In this case the version used was e dhcp 2 0p15 8 1386 rpm NOTE This is the current version for Red Hat V7 2 You must have some version of DHCP installed Building an NFS DHCP BOOTP Server for Use With Sandpoint and MVP Linux For More Information On This Product Go to www freescale com Freescale Semiconductor Inc
44. y including without limitation consequential or incidental damages Typical parameters which may be provided in Freescale Semiconductor data sheets and or specifications can and do vary in different applications and actual performance may vary over time All operating parameters including Typicals must be validated for each customer application by customer s technical experts Freescale Semiconductor does not convey any license under its patent rights nor the rights of others Freescale Semiconductor products are not designed intended or authorized for use as components in systems intended for surgical implant into the body or other applications intended to support or sustain life or for any other application in which the failure of the Freescale Semiconductor product could create a situation where personal injury or death may occur Should Buyer purchase or use Freescale Semiconductor products for any such unintended or unauthorized application Buyer shall indemnify and hold Freescale Semiconductor and its officers employees subsidiaries affiliates and distributors harmless against all claims costs damages and expenses and reasonable attorney fees arising out of directly or indirectly any claim of personal injury or death associated with such unintended or unauthorized use even if such claim alleges that Freescale Semiconductor was negligent regarding the design or manufacture of the part lt freescale semiconducto
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