You never specified what version of Ghost you have....
Prior to Ghost version 6.03, Ghost obtained the MS DOS 7.0 files from a location you specified, or from a formatted floppy disk. Starting with Ghost version 6.03, Ghost provides IBM's PC DOS files, version 7.0.
Some computers might have problems with this version of DOS. To resolve the problem, replace the PC DOS files with an earlier version of PC DOS files, or with the MS DOS 7.0 files. See the document How to replace the DOS files.
Sometimes these problems are due to using PC DOS with an old computer BIOS. Upgrading the computer's BIOS might resolve the problem.
How to replace the DOS files
Prior to Ghost version 6.03, Ghost obtained the MS DOS 7.0 files from a location you specified or from a formatted floppy disk. Starting with Ghost version 6.03, Ghost provides IBM's PC DOS files, version 7.0. Some computers might have problems with this version of DOS. To resolve the problem, replace the PC DOS files with an earlier version of PC DOS files or with the MS DOS 7.01 files.
NOTE: MS DOS 7.0 and earlier do not work with FAT32 partitions, and may have smaller limits on disk or partition sizes than later versions. MS DOS 7.01 and later, included in Win95b and later, do understand and work with FAT32 partitions. FAT32 partitions are supported by Windows 95b and later, Windows 98/ME, and Windows 2000.
PC DOS files
Command.com
IBMBIO.com
IBMDOS.com
Himem.sys
MS DOS files
Command.com
IO.sys
MSDOS.sys
Himem.sys
Updating bootable floppy disks
To update a floppy disk, manually replace the PC DOS files with the MS DOS files. In some cases, even when replacing PC DOS files with earlier versions of PC DOS files, manually replacing the files might not be sufficient to resolve the problem.
In this case, you can replace the files with one of the following methods:
The SYS command: Remove the PC DOS files, and then use DOS's SYS command to place the new DOS files on the floppy disk. Be sure to include the file Himem.sys on the boot disk.
Multicast Assist: After updating Multicast Assist Wizard to use the MS DOS files or older PC DOS files, recreate the bootable floppy disk using Ghost 6.0's Multicast Assist Wizard.
Hope this helps...