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000190_owner-current-u…s.berkeley.edu_Thu Aug 4 19:12:57 1994.msg
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To: gillham@andrews.edu (Andrew Gillham)
Cc: current-users@sun-lamp.cs.berkeley.edu
Subject: Re: /kernfs mounts
<9408032021.AA13401@edmund>
X-Notice: Do not redistribute in any form without prior explicit
consent of the author.
From: "Chris G. Demetriou" <cgd@alpha.bostic.com>
Sender: owner-current-users@sun-lamp.cs.berkeley.edu
> I don't know if this is a bug, or a feature... but if I do a
> mount -a more than once, /kernfs gets mounted again each time.
yup.
> (ok, mount reports it's mounted, may not really be mounted again)
> Everything still works, but if I do a 'mount' it's irritating to
> see the multiple listings... :-)
no, it's definitely being mounted each time you say mount -a.
The mount man page doesn't say:
-a All the filesystems described in fstab(5) are mounted. Excep-
tions are those marked as ``noauto'' or are excluded by the -t
flag (see below).
though it should... (that's a quote from the 4.4BSD-Lite man page.)
the only reason that it doesn't remount things like /usr, is because
it gets "Device Busy" on the block partitions of the disk, since
they're already in use.
Arguably, this is a bug, but it's one of those things that does
conform to what should be the documentation. 8-)
chris