symlink to /proc/mounts
richard at nezumi.plus.com
Wed Jan 1 23:36:09 PST 2003
* Ian Molton <spyro at f2s.com> [2003-01-02 07:06]:
> On Wed, 1 Jan 2003 23:14:50 +0000 (UTC)
> richard at nezumi.plus.com (Richard Lightman) wrote:
> > > Mount writes information to /etc/mtab. Some, but not all
> > > of this information is found in /proc/mounts.
> > >
> > Well fix it ;-). Create a kernel patch to allow mount to install
> > additional information in /proc/mounts.
> I never got round to implementing my solution to the 'loopback device
> under symlinked /etc/mtab' problem.
> basically I was going to allow 'named loopback devices' to be created so
> that mount could intelligently umount loopback devices when you
> unmounted the fs that was on them.
> its probably a very trivial kernel mod. I should look into it again
I use an encrypted loop back device to hold plain text passwords
(/etc/ssh_host_dsa_key and /etc/ppp/pap-secrets).
It mounts every day with:
md5sum /dev/misc/nvram | mount -p 0 /etc/secrets
and unmounts with:
umount -rnd /etc/secrets
/etc/secret_crypt /etc/secrets cramfs \
Is there some problem with the /etc/mtab symlink and loop devices that
does not show up because I have devfs and crypto?
The patches are in ftp://your.kernel.mirror/linux/kernel/people/hvr/
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