Mailinglist Archive: opensuse (3513 mails)

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Re: [opensuse] How to mount external drives automatically?
  • From: Josef Wolf <jw@xxxxxxxxxxxxx>
  • Date: Wed, 14 Jan 2009 23:52:34 +0100
  • Message-id: <20090114225234.GD18088@xxxxxxxxxxxxxx>
On Wed, Jan 14, 2009 at 10:45:16PM +0100, Josef Wolf wrote:

Finally, I've (almost) figured out how to do what Randall and myself
want, and it turns out that all this can be done by udev directly.
No ivman needed.

I've put into /etc/udev/rules.d/80-my-backup-mounts.rules the following:

ACTION=="add", # when device is attached
KERNEL=="sd[a-z][0-9]*", # and matches this pattern
PROGRAM="/lib/udev/vol_id -l %N", # retrieve filesystem label
RESULT=="na-ppc-[0-9]*", # label has to match this pattern
RUN+="/bin/mkdir -p /media/$result", # create mountpoint and mount
RUN+="/bin/mount -orw,nodev,nosuid,noexec,noatime /dev/%k /media/$result",
OPTIONS="last_rule" # abort processing

All this must be a single line and comments are to be removed.

All the labels of my backup drives match the regex /^na-ppc-\d+$/ and
the RESULT rule makes sure that everything else is ignored by this rule.
Unfortunately, udevd understands only simple shell-style globbing.

Then I run "udevadm control --reload-rules"

This (almost) does what we both (and maybe others?) want. The
OPTIONS="last_rule" stops further processing and therefore prevents
the event to be forwarded to HAL and the desktop (that is the
"manually" part of Randall's question)

The only problem that I could not figure out (yet) is that of the RUN
array: only the last command (the mount in this case) is run.

I've got it now: simply duplicate the rule. The first one should contain
the RUN+="mount ..." and the second should contain the run+="mount ..."

But there are two more points on my wishlist:

- how do I rmdir the mount point when the device is removed? This turns
out to be somewhat tricky, since the device node will already be gone
and vol_id won't work anymore.

- Is there any possibility to automatically umount when the device is
removed? Guess this would require to activate the sync mount option?

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