Solved Removing partitions from DOS 6.22/OS2 Warp drive

November 17, 2019 at 05:33:38
Specs: MS DOS 6.22 & OS/2 Warp, P75 16Mb
HI,

I am trying to reformat an old Quantum 640 MB drive that had previously contained a dual boot system with Dos 6.22 and OS/2 Warp. Fdisk seems unable to remove the OS/2 Warp partition. OS/2 was installed on an extended partition which cannot be removed as it contains a 'logical drive'. When I try to remove the 'logical drive' it claims there isn't one.

My next step was to try a low level format but I cannot find any old DOS based utility for this on a quantum drive. Powermax 4.23 made by Maxtor was tried but it needs to be run under Win32.

Any help would be much appreciated, thanks :)


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#1
November 17, 2019 at 05:40:16
✔ Best Answer
Never tried it on an OS/2 partition, but delpart.exe may be of some assistance:

http://russelltexas.com/delpart.htm

Just curious as to what exact message you get when you try to remove the extended partition with FDISK?

"Channeling the spirit of jboy..."

message edited by T-R-A


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#2
November 17, 2019 at 09:32:12
Yeah delpart should work if 'remove non dos partition' in fdisk doesn't. An LLF shouldn't be necessary but if so I've used MAXLLF

https://winworldpc.com/product/maxt...

on various drives. It's dos program. However it's probably best to try a zero-fill utility that just writes zeros to the drive before using a true LLF.

message edited by DAVEINCAPS


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#3
November 17, 2019 at 10:05:05
Thanks, delpart worked like a charm. Appreciate the info about maxllf also.

:)


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