From: anothy@cosym.net
To: 9fans@cse.psu.edu
Subject: [9fans] undocumented fs config options?
Date: Tue, 8 May 2001 11:19:15 -0400 [thread overview]
Message-ID: <20010508151926.58253199FF@mail.cse.psu.edu> (raw)
in reading through /sys/src/fs/worms and the file
server source, there seem to be two undocumented
device types: r and x.
x is Devswab - i believe this bit-swaps whatever's
on the physical disk, presumably for moving a file
system between different-endian servers. correct?
i'm not clear on r; it seems related to be the same
as w, but for optical disks (described in
port/portdat.h as "scsi video drive"), or l with no
label (l is described as "scsi video drive
(labeled)"). in the examples, r, like l, is only
used within a j device to describe the unmountable
platters. it seems either r or l is required in the
device3 section of a j definition; fsconfig(8)
makes no mention of that.
can l or r be used on regular disks? what's the
difference between r and w devices?
-α.
next reply other threads:[~2001-05-08 15:19 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-05-08 15:19 anothy [this message]
2001-05-09 4:10 jmk
2001-05-09 7:30 ` Nigel Roles
2001-05-10 5:31 ` Boyd Roberts
2001-05-10 6:00 nigel
2001-05-10 19:46 ` Boyd Roberts
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