This procedure restores the Dynamic Drive Overlay on a Western Digital hard disk partitioned with Disk Manager software. If you follow the instructions carefully, you should not lose any data on the hard disk.
Please be certain, however, that your data is fully backed up before attempting this recovery. You may access the hard disk by booting with your customized Landmark Emergency Boot Disk and choosing either menu option 1 (attempt to access the hard disk’s AUTOEXEC file) or the last menu option (exit to DOS). Do not interrupt the floppy disk boot process, or your hard disk may not be accessible.
The following instructions are guidelines only. Specific keystrokes may vary from system to system, depending on the revision levels of DOS, Disk Manager, and the Emergency Boot Disk. Landmark Computer Labs assumes no responsibility for loss of your data. Back up your hard disk while you have the opportunity to do so!
1. Put the Landmark Emergency Boot Disk in Drive A: and boot the computer. When you reach the Emergency Boot Disk menu, choose the last option (Exit to DOS).
2. At the DOS prompt, type CHKDSK C:
3. (If you have more than one hard disk partition defined, type CHKDSK D:, CHKDSK E:, etc. and
write down the number of Megabytes each contains.)
4. Remove the Emergency Boot Disk and put the Disk Manager disk in Drive A:. (If the Disk Manager
disk only fits in Drive B:, then put it in Drive B: and type B:
5. Type DM/M to start Disk Manager in Manual mode.
6. Type Alt-C at the Disk Manager Status screen.
7. Choose H at the Disk Manager Main Menu.
8. Choose Disk 1 IDE.
9. Choose Partition Setup and Configuration at the Hard Disk Installation Menu.
10. Choose Partition 1 (DOS).
11. Choose N for New Table. Confirm by choosing YES to continue.
12. Choose Yes in response to “Dynamic configuration will allow this drive to be installed with a single
DOS partition. Use dynamic configuration?” (Choose Yes even if you have multiple partitions.)
13. At “Partition Types” choose DOS.
14. At “Partition Entry Modes” choose M for Megabytes.
15. When prompted for the number of Megabytes, refer to the number of megabytes you wrote down in
Step #2. If necessary, change the number suggested by Disk Manager. Use the backspace key to
erase the suggested number, then type in your own number. (Don’t worry if the “maximum capacity”
reported by Disk Manager is slightly smaller than the number you enter.) Then press
16. If you have more than one partition, choose a DOS Extended partition type for the next partition.
Again choose M for Megabytes, then enter the size of the second partition. Choose a DOS volume
type for the second partition, then enter the size of the volume (should be the same size as the
partition). Continue doing this until you have specified all partitions and all volumes. Press the
17. Press the
18. Press Esc three times.
19. Press E to exit Disk Manager.
20. Enter yes to confirm exiting.
21. Remove the disk from Drive A: and reboot the computer. It should boot normally.
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