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DIMG User Manual - Archive Services and Information

1. DIMG Main Window showing a DOS 6 22 disk image loaded 5 2 1 Select Drive Menu onen 7 2 2 Reading Disk into Image File 8 2 3 Imaging Complete Message less 8 24 Writing adis ke isis wen een ann RE 9 3 1 The contents of a DOS 6 22 disk image 11 3 2 l Propertes 226 upon wee RR RSS 13 vi LIST OF FIGURES Chapter 1 Getting Started DIMG is a utity for imaging floppy disks It allows you to create a file which represents the exact content of the source disk which can then be restored onto another disk creating an exact copy In addition to basic reading and writing of disk images DIMG provides the ability to view the contents of disk images as if they were archives This allows files to be extracted from a disk image without having to write them to disk first Figure 1 1 shows DIMGs main window In the center of the main window is the file view area This shows files present in the currently open disk image Figure 1 6 shows the DIMG main window again with an MS DOS 6 22 boot disk image loaded 1 1 Installation 1 1 1 Windows On Windows DIMG has no specific installation requirements It will automat ically initialise all settings required to default values on first run DIMG is made of these three components on Windows 1 DIMG 2 DQWinDrv 3 fat12fs 1 1 2 Linux DIMG is made of three components 1 DIMG 2 DQDLibDsk 3 fat12fs 2 CHAPTER 1 GETTI
2. load plugins using a number of default filenames trying each one until something loads The filenames depend on the operating system in use and the type of build debug or release The format of filenames can be summarised in table 4 1 Platform Build Type Prefix Suffix Extension Windows Debus g dil Release UNIX Debus lib l so Release Table 4 1 Plugin filename components So the DQDLibdsk DQlibdskdrv plugins filename on windows for a debug build would be DQlibdskdrvd d11 On linux for a release build it would be libDQlibdskdrv so 4 2 1 Filesystem Plugins For Filesystem plugins DIMG will first try to load the fat12fs plugin moving on to fsplugin should it not be found Should niether plugin exist it will display a File Open dialog allowing you to browse for a Filesystem plugin Applying the rules in table 4 1 a windows release build would first try to load fat12fs dll and then fsplugin dll 4 2 2 Drive Access Plugins The loading of Drive Access Plugins is similar to that of Filesystem Plugins see section 4 2 1 except for a few minor differences The first plugin filename DIMG tries depends on the platform It tries to load DQlibdskdrv on UNIX platforms or DQWindrv on Windows On both platforms it will then attempt to load dqplugin before displaying a File Open dialog allowing you to browse for a Drive Access plugin Unlike with filesystem plugins this process can be ove
3. DIMG User Manual Document Number A000 UMO1 January 2010 This document provides configuration and usage guidelines for the portable graphical edition of DIMG Revision Update Information This is a new manual Operating System Microsoft Windows NT 5 0 Linux Software Version DIMG Version 1 0 Copyright David Goodwin 2009 2010 This document was prepared using EXTRX 2e Contents 1 Getting Started 1 1 Installation 1 1 1 Windows 1 1 2 o 4 240024 1 2 Initial Configuration 1 2 1 Adding Drives on Linux 1 3 Working with Disk Image Files 2 Imaging Disks 2 1 Selecting a Drive 22 Reading 2 9 A a 3 File Management 3 1 Browsing 3 2 Extracting Files 3 3 Viewing File Details 4 Advanced Topics 4 1 Plugin Architecture 4 1 1 Drive Access Plugins 4 1 2 Filesystem plugins 4 2 Plugin Loading 4 2 1 Filesystem Plugins 4 2 2 Drive Access Plugins A Troubleshooting A 1 Missing Drives iii Q2 MN NL rn cnn 00 TAN 15 15 15 16 16 16 16 19 CONTENTS List of Figures 1 1 The DIMG Main Window under Windows7 2 1 2 Configure Driver in the Disk Menu 3 1 3 DQDLibDsk Driver configuration screen with no drives configured 3 14 DQDLibDsk Driver Prompt for Floppy Disk File 4 1 5 DQDLibDsk Driver configuration screen with drive added 4 1 6
4. NG STARTED no kal DIMG version 1 0 Mrs File Image Disk Help cH o kal A Use drive A Filename Attributes Size Date Modified Figure 1 1 The DIMG Main Window under Windows 7 All three components require Qt 4 5 or higher Additionally DQDLibDsk re quires that LibDsk be installed on the system To install DIMG on linux simply compile each of the three components cd into the source directory and run qmake then make This will produce a set of binaries dimg 1ibDQlibdskdrv so and libfati2fs so which you can install to opt dimg by running make install 1 2 Initial Configuration 1 2 1 Adding Drives on Linux Some initial setup is required on Linux systems as DIMG is not able to auto matically detect the systems floppy drives when using the DQDLibDsk driver the default To do this select Configure Driver from the Disk menu Figure 1 2 in the Main Window This will bring up the DQDLibDsk configuration screen Figure 1 3 where you can manually add all floppy drives you wish to use on the system To do this Click on the Add button which will bring up a prompt for a Floppy Drive 1 3 WORKING WITH DISK IMAGE FILES 3 Configure Driver Figure 1 2 Configure Driver in the Disk Menu file Figure 1 4 This is where you can enter the name of the floppy drive eg dev fd0 or a raw image file which will be used as a virtual floppy drive When you click OK the specified drive will
5. be added to the list of floppy drives in the configuration screen Figure 1 5 DODLibDsk Configuration Figure 1 3 DQDLibDsk Driver configuration screen with no drives configured When the program is next started the specified floppy drive s will appear in the Drive Select menu 1 3 Working with Disk Image Files To open a disk image you can either pass the filename you wish to open to DIMG on the commandline for example dimg tmp file img or select Open from the File menu Selecting Open from the File menu will display a standard file open dialog which you can use to locate a supported disk image file Only raw disk image files formatted with the FAT 12 filesystem are currently supported Trying to open disk images with other filesystems or corrupt filesystems may require the FAT 12 filesystem plugin to be disabled to prevent malfunction 4 CHAPTER 1 GETTING STARTED Figure 1 4 DQDLibDsk Driver Prompt for Floppy Disk File DODLibDsk Configuration dev fdo Figure 1 5 DQDLibDsk Driver configuration screen with drive added Support for disk images generally follows support for disk types as DMF disks are unsupported trying to open a DMF format raw disk image will cause bad things to happen program crashes Once a supported disk image has been opened its contents will be displayed in the main window such as in Figure 1 6 The name of the file loaded is shown in the title bar and the images volume label is s
6. e 3 1 The contents of a DOS 6 22 disk image 11 12 CHAPTER 3 FILE MANAGEMENT Four columns are shown in the file area of the main window These are Filename Attributes Size and Date Modified The contents of all these except perhaps attributes should be fairly obvious The attributes column shows which attributes the file has set These at tributes are Attribute letter Attribute Name r Read Only h Hidden a Archive r System d Directory 3 2 Extracting Files Like an archive all of the files you see in the disk image can be extracted to a location on your computer without having to write the disk image out to a disk first To extract a file right click on the desired file and choose Extract File A save dialog will appear where you can choose where to extract the file to and what to name it 3 3 Viewing File Details To view the full details of a file right click on the desired file and choose the File Properties option This will display a properties dialog similar to the one in Figure 3 2 3 3 VIEWING FILE DETAILS 31 05 1994 6 22 00 AM Read only Hidden Archive System Figure 3 2 File Properties 13 14 CHAPTER 3 FILE MANAGEMENT Chapter 4 Advanced Topics 4 1 Plugin Architecture DIMG has been designed with a modular architecture to allow various com ponents to be upgraded or replaced without requiring major changes to other components At this time the
7. hown in the status bar at the bottom of the main window In this case the volume label is DOS622BO0T To write an image to a disk see Section 2 3 The image can be closed again by choosing Close Image from the File Menu This will close the disk image and return the program to how it looked before the image was open Figure 1 1 1 3 WORKING WITH DISK IMAGE FILES 5 5 u DIMG version 1 0 CAtemp dimg disk Lima File Image Disk Help et WA wi Filename Attributes Size Date Modified IO sys rhas 39 KB Tue May 31 1904 06 22 00 Is MSDOS SYS thas 37KB Tue May 31 1994 06 22 00 E COMMAND COM 53KB Tue May 31 1994 06 22 00 DRVSPACE BIN thas 64KB Tue May 31 1994 06 22 00 E EDIT COM 413B Tue May 31 1994 06 22 00 E QBASIC EXE 189KB Tue May 31 1994 06 22 00 QBASIC HLP 127KB Tue May 31 1994 06 22 00 E FORMAT COM 22KB Tue May 31 1994 06 22 00 Figure 1 6 DIMG Main Window showing a DOS 6 22 disk image loaded CHAPTER 1 GETTING STARTED Chapter 2 Imaging Disks The primary function of DIMG is to image disks This includes both reading a disk to image and writing an image to a disk At this stage DIMG only supports working with Floppy Disk images This version has only been tested with 3 5 high density disks but will probably work with other varieties In particular DMF formatted disks are not currently supported 2 1 Selecting a Drive Before you can image a disk you must select the drive co
8. ntaining the disk you wish to image To do this select the desired drive from the Select Drive submenu of the Disk menu See Figure 2 1 Disk Help Select Drive Use drive A Read Disk Date h VA Write Disk Figure 2 1 Select Drive Menu If the Select Drive menu is empty or the desired drive is missing see Section A 1 Troubleshooting Missing Drives The drive you select will remain selected until either you select a differ ent drive or restart the program All image read or write operations will be performed on this drive for as long as it is selected 2 2 Reading Before a disk can be read into an image file the drive containing the disk you wish to image must be selected See Section 2 1 To read a disk into an image file choose Read Disk from the Disk menu See Figure 2 1 If a disk is present in the selected drive DIMG should start reading 7 8 CHAPTER 2 IMAGING DISKS the image immediately provided your user account has access to the selected drive When DIMG is reading a disk into an image file it will show a progress dialog like the one shown in Figure 2 2 Clicking the Cancel button will cancel the read process r kel Reading Disk Reading cylinder 7 80 Head 2 2 Sector 0 17 n 7 Figure 2 2 Reading Disk into Image File When imaging has completed a message will appear Figure 2 3 and the filesystem on the disk will be displayed 8 Complete o Disk Imaging Comple
9. placing the disk you are writing to or clean the drive Despite what error messages may say this version of DIMG is not capable of retrying reads or writes If a read or write fails you have to start again 10 CHAPTER 2 IMAGING DISKS Chapter 3 File Management This chapter explains how you can treat a disk image file like you would an archive zip file This includes browsing its contents and extracting files without having to write the image back to disk 3 1 Browsing When you open a disk image file or read in a disk with a valid and non corrupt important FAT 12 filesystem on it most PC disks use this filesystem you will see all of the files and directories present on the disk in the main window Image 3 1 To see the contents of a directory click on the expand symbol next to the folder icon Pr la DIMG version 1 0 C temp dimg disk 1 ima bola ass File Image Disk Help amp ld o ball JA Use drive A Filename a losys la MSDOS SYS 1 COMMAND COM DRVSPACE BIN I EDIT COM E QBASIC EXE QBASIC HLP E FORMAT COM Volume Label DOS622BOOT I Attributes rhas rhas Be rhas a Size 39 KB 37 KB 53 KB 64 KB 4138 189 KB 127 KB 22 KB Date Modified Tue May 31 1994 06 22 00 Tue May 31 1994 06 22 00 Tue May 31 1994 06 22 00 Tue May 31 1994 06 22 00 Tue May 31 1994 06 22 00 Tue May 31 1994 06 22 00 Tue May 31 1994 06 22 00 Tue May 31 1994 06 22 00 Figur
10. re are three main components 1 DIMG the main program 2 Filesystem plugin Provides access to a disk images filesystem 3 Drive Access plugin Provides access to the systems floppy drives At this stage only one of each component can be active at a time That means that DIMG can only support a single filesystem at a time if you replace the FAT12 filesystem plugin with an HFS one you will no longer be able to see the contents of FAT12 disks 4 1 1 Drive Access Plugins The Drive Access Plugin is responsible for providing access to the systems floppy drive It handles all reading and writing of disks Currently there are two available Drive Access Plugins DQDLibDsk A portable drive access plugin which uses LibDsk to do most of the work This plugin has some serious performance issues on Windows systems and so is only provided with Linux versions of DIMG DQWindrv This Windows only Drive Access Plugin is a lot simpler than DQDLibDsk but provides significantly better performance It is the default Drive Access Plugin for Windows systems 15 16 CHAPTER 4 ADVANCED TOPICS 4 1 2 Filesystem plugins Filesystem plugins provide access to the filesystem on a disk image allowing files to be extracted as if it were an archive At this stage only one Filesystem plugin is provided FAT12fs This plugin provides access to the FAT12 filesystem commonly used on PC formatted floppy disks 4 2 Plugin Loading On startup DIMG tries to
11. rridden by specifying the plugin name in the DIMG configuration file On UNIX this can be done by adding the key DQDriver someplugin under the Plugins group in the configuration file config zxnet DIMG conf On windows the key HKEY CURRENT USERNSof twareNzxnet NDIMGNPlugins should be created with the String value DQDriver set to the name of the plugin to load 4 2 PLUGIN LOADING 17 Should the specified plugin fail to load DIMG will fall back to the default behaviour trying the two default filenames before prompting 18 CHAPTER 4 ADVANCED TOPICS Appendix A Troubleshooting A 1 Missing Drives On Windows DIMG attempts to automatically detect all supported drives on startup If the desired drive is not visible it may be that it is not supported or was not connected when DIMG started On Linux DIMG is unable to automatically detect supported drives Drives must be manually configured see Section 1 2 1 for instructions on how to do this Problem Possible Cause Action The Select Drive menu No supported drives are Attach a supported is empty present Windows drive and restart DIMG One drive not available in Select Drive menu while others are No drives are config ured Linux The drive may not be supported Drive was attached af ter DIMG was started Windows Configure drives on the system Section 1 2 1 Use a different drive type Restart DIMG 19
12. te Figure 2 3 Imaging Complete Message An image of the disk now resides in memory If you wish to keep the disk image you have just created you must then save it by choosing Save from the File menu 2 3 Writing The basic process for writing a disk image to disk much the same as reading a disk into memory and then saving it to a file just in reverse Essentially all you must do is 1 Open the disk image you wish to write 2 Choose the drive you wish to write it to 3 Start the write process 4 Wait for it to finish Before you can write a disk image to disk you need to have that disk image open You can either load a disk image file into memory See section 1 3 or you can read a disk directly into memory Section 2 2 2 3 WRITING 9 Next you must select the drive you wish to write the disk image to Section 2 1 Make sure you select the correct drive as any existing data on the disk in that drive will be erased Once this is done you may start the actual disk imaging process Lastly choose Write Disk from the Disk menu A progress dialog Image 2 4 will appear and should no errors occur a Disk Imaging Complete message Image 2 3 will eventually appear The disk in the selected drive should now be an exact copy of the original source disk or disk image file 7 kel Writing Disk Writing cylinder 6 80 Head 2 2 Sector 17 17 u 7 Figure 2 4 Writing a disk If errors have occured try re

DIMG User Manual - Archive Services and Information

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