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SubjectRe: Strange umount problem in latest 2.4.0 kernels

On 2001.01.11 Andries.Brouwer@cwi.nl wrote:
> > The "none" bit puzzles me the most.
>
> It is a common misconfiguration. Given a line
>
> device dir type options garbage
>
> in /etc/fstab, some umount versions will complain "device busy"
> when the umount fails. Thus, it is better to use
>
> proc /proc proc
> devpts /dev/pts devpts
>
> instead of
>
> none /proc proc
> none /dev/pts devpts
>
> so as to avoid this silly "none busy".
> But many distributions come misconfigured like this.
>

Same cam be applied to shm ? Thus kernel Documentation/Changes should be
changed:

System V shared memory is now implemented via a virtual filesystem.
You do not have to mount it to use it. SYSV shared memory limits are
set via /proc/sys/kernel/shm{max,all,mni}. You should mount the
filesystem under /dev/shm to be able to use POSIX shared
memory. Adding the following line to /etc/fstab should take care of
things:

none /dev/shm shm defaults 0 0

to

shm /dev/shm shm defaults 0 0


--
J.A. Magallon $> cd pub
mailto:jamagallon@able.es $> more beer

Linux werewolf 2.4.0-ac5 #1 SMP Wed Jan 10 23:36:11 CET 2001 i686

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