Ian Kent wrote:
On Sat, 26 Nov 2005, Prakash Velayutham wrote:
Ian Kent <[EMAIL PROTECTED]> 11/25/05 1:47 PM >>>
On Thu, 24 Nov 2005, Prakash Velayutham wrote:
Hi,
I am new to this list, so please forgive my ignorances.
I had a SuSE Pro 9.0 system running autofs (v3) running earlier. The
autofs itself did not have any issues at all until I decided to
upgrade
the system to SuSE 9.3. It was a clean install, and autofs4-4.1.3
became
the default kernel autofs module. My autofs master map comes from a
OpenLDAP server and it contains 3 different mount maps.
/users (LDAP map)
/protein/users (LDAP map)
/import/users (LDAP map)
I also have a file-based map in this server (/export/users).
Recently I was trying to move a user's home dir from server1 to
server2.
After moving his home dir and making the relevant changes to his LDAP
entry (homeDirectory attribute), I tried to restart autofs in the
above-mentioned server. The server already had several users logged in
under /protein/users. Though the restart did not complain, I noticed
that autofs status showed "Configured mount points" correctly and
removed the currently mounted mount points from "Active mount points".
Is there a reason why? Also strangely the ownerships of the previously
mounted dirs had been changed to root:root.
I'm not sure what is not working or what has been broken.
What is the actual problem and symptom?
Ian
Thanks Ian for a reply. What if I restart autofs when a user whose home
dir is mounted through autofs is already logged into the system (and
hence at least one of the automount entries is being used)? What will
the system do in that case?
On runing "reload" it should, depending on version and patch levels
re-read and update the map, leave the mounted directory mounted and leave
the stale map entry for cleanup next time the map is reloaded and the
entry isn't mounted.
"Restart"ing is much more agressive and I wouldn't recommend it if you
have mount that are in use. To restart you really need to have nothing
actually in use.
And also if I change the ldap attribute "homeDirectory" for a user, do I
have to restart autofs in a system for that change to be seen. Because I
sometimes see that the system has cached the user's attributes from LDAP
and tries to use that and fails.
autofs doesn't use that attribute so no, but you'll need to be sure that
the automount map entry that is used to access that directory is still
valid following the change and if it also had to be changed then you might
need to "reload" autofs. It's worth pointing out that later versions (most
RedHat versions and 4.1.4 I think) of autofs should recognise this change
on access without needing to re-load the map.
The other thing I noticed about your query was the question about the root
owned directory. At variuos times in the past development autofs has been
(mostly intentionally) lazy about cleaning up mount point directories.
When autofs directories don't have a filesystem mounted on them they will
appear root owned. It shouldn't make a difference to operation.
Ian
Thanks Ian. I tried out autofs reload and there seems to be a small
glitch. It says "checking for changes in auto.master" and then stops
some of the automount daemons. But stays there forever. If I do Ctrl-C,
then it immediately shows "Starting XXX" for the different automount
daemons (except 1 for some reason). Is there a reason for this
behaviour. The system I am trying out is SuSE Linux 10.0, autofs-4.1.4-6
with automount master map and the entries coming from a OpenLDAP server.
Thanks,
Prakash
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