Booting SCO 3.2v4.0 hard disk image in VMware or Bochs

Hi folks - I'm trying to boot a dd'd disk image of an IDE-based SCO system inside VMware 5.5, Bochs IA-32 emulator, or an actual Athlon-based PC.

This is the entire image of a 170MB hard drive to include partition table, etc. as captured by "dd if=/dev/hda of=disk.img" from a Knoppix boot CD...

In all three cases (VMware/Bochs/Athlon box), I get
"SCO UNIX System V/386 i80486" followed by a "boot:" prompt.

"hd(40)unix" or simply pressing enter causes the kernel to load, but the system immediately restarts after the the kernel load is complete (ie: after .text, .data, .bss output to the console).

If I type "dir" at the "boot:" prompt, I can see a filesystem on the disk image, so I'd guess the image is valid - but I've heard that SCO's IDE controller support back then was extremely limited.

VMware presents the disk image to the guest OS as a SCSI disk hanging off a Buslogic controller, but I'm not sure how to migrate a virtual SCO system from IDE to SCSI when I can't boot the image in the first place :)

(I have 3.2v4.0y N1/N2 disks, but it reboots immediately after the kernel load and "Insert N2, press enter" part - same as the hard disk image).

I can't mount the filesystem in Linux, either - I get a
"VFS: unable to find oldfs superblock on device" with the sysv module.
(this is with both loop devices and an actual IDE device /dev/hda4).
Possibly an HTFS filesystem, unsupported in Linux?

It'd be great to get this disk image to boot, or even to be able to grab the files out of it - any ideas out there?

Thanks in advance.

Robert Giles

.

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