From: "Michael T. Kloos" <michael@michaelkloos.com>
To: util-linux@vger.kernel.org
Subject: FAT12 format does not honor the -R option
Date: Fri, 15 Jan 2021 11:01:45 -0500 [thread overview]
Message-ID: <abf8a4c7-fa0c-6e2b-e272-e68531ede173@michaelkloos.com> (raw)
"mkfs.vfat -F 12 -R 2 /dev/loop0" does not seem to honor the -R option.
It just defaults to 0x20 for the reserved sector count. I can hexedit
the FS to move the file allocation table contents and change 0x20 to
0x02 in the reserved sector count field. Mounting this seems to work
fine under the Linux FAT driver from my limited experimentation. It
just seems like a waste of space reserving that many sectors in a FAT12
FS where it is most likely to be used in space constrained
applications. Is this a bug or is it working around some compatibility
issue with 2 reserved pages?
Thanks,
----Michael
next reply other threads:[~2021-01-15 16:12 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-15 16:01 Michael T. Kloos [this message]
2021-01-15 16:28 ` FAT12 format does not honor the -R option Karel Zak
2021-01-15 16:48 ` Michael T. Kloos
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