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Mkfs.fat on Linux vs. OS/2 2.1
blog · git · desktop · images · contact mkfs.fat on Linux vs. OS/2 2.1 2024-09-21 I often run VMs with old operating systems in them, like OS/2 2.1.
Although officially documented as free for OEM use, MS-DOS/PC DOS (since 3.1), Windows 95/98/SE/ME and OS/2 check this field to determine which other parts of the boot record can be relied upon and how to interpret them. Therefore, setting the OEM label to arbitrary or bogus values may cause MS-DOS, PC DOS and OS/2 to not recognize the volume properly and cause data corruption on writes. One might suspect that, internally, OS/2 saw the filesystem as having a size of 0 bytes, thus rightfully claiming that it can't find some sector?
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