Comments for Catweasel Linux Device Driver

17 Jun 2013 06:12 RPVentures

8-inch floppy support for DOS and/or CPM? DOS actually did support 8-inch drives at one point, though it was only common for those converting data to/from other systems.

I have an "IBM 9331-011". It was originally made for AS/400's to have backwards comparability with older System/36 systems. However, it appears to use the same 37-pin external floppy connector that old PC (5150-ish) floppy controllers used.
Physically adapting the interface was no big deal (same as adapting internal 5.25 34-pin to external 5.25 37-pin), but the CatWeasel Linux driver doesn't seem to support 8-inch drives?

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Some reference information below
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Standard Floppy Disk Formats Supported by MS-DOS
http://support.microsoft.com/kb/75131

Formatted Capacity 250K 500K 1.2 MB

# of Heads (Sides) 1 2 2
# of Cyls (Tracks) 77 77 77
# of Sectors/Track 26 26 8
Total # of Sectors 2002 4004 1232
# of Bytes/Sector 128 128 1024
# of Bytes/Cluster 512 512 1024
# Sectors/Cluster 4 4 1
Total # of Clusters 497 997 1227
# Reserved Sectors 1 4 1
# of Hidden Sectors 3 0 0
# Sectors/FAT 6 6 2
# of FAT Copies 2 2 2
# Root Dir Entries 68 68 192
Media Descriptor FE FD FE
Recorded Density Single Single Double
MS-DOS Version Began 1.00 2.00 2.00
Change-Line Support NO NO NO

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