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Redhat : Updated autofs package
Red Hat Network has determined that the following advisory is applicable to
one or more of the systems you have registered:
Complete information about this errata can be found at the following location:
https://rhn.redhat.com/network/errata/errata_details.pxt?eid=2337
Bug Fix Advisory - RHBA-2004:284-07
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Summary:
Updated autofs package
An updated autofs version 4 package is now available.
Description:
Autofs controls the operation of the automount daemons. The automount
daemons automatically mounts filesystems and unmounts them after a period
of inactivity. File systems can include network file systems, CD-ROMs,
floppies, and other media.
Autofs version 3 was laden with problems ranging from kernel hangs to
improper parsing of options. The package has been upgraded to version 4,
which has a more robust deployment history. It also implements some key
sought-after features, such as browsable mounts, replicated servers, and
executable maps.
Specific user-visible bugs include the following:
Mount options in auto.master are ignored if preceded by a dash. This
differs from the behavior of the Sun automounter, and as such, the Linux
automounter has been changed to parse options as mount options when
preceded by a dash.
After restarting the automounter (using service autofs restart), each
automount mount point is listed twice in /etc/mtab (or /proc/mounts). The
file system may only be unmounted once. This version of the automounter
fixes the problem by only allowing one automount daemon to mount a given
file system.
Timeouts were not inherited by submounts. Thus, a submount would timeout
according to the default timeout, and not the user-specified timeout. This
has been addressed in autofs-4.
Features added include the following:
o Browsable mounts (ghosting) - Ghosting of map directories
allows you to see the directories in the autofs map without mounting
them. When they are accessed, such as when a directory listing is
requested, the map entry is mounted so that it is seen.
o Replicated Server support - Replicated server functionality
allows the administrator to specify map entries which point to multiple,
replicated servers. The automount daemon attempts to determine the best
server to use for mounts by testing the latency of an rpc_ping to each
available server. Weights may also be assigned to the servers, allowing for
more administrator control. Refer to the
usr/share/doc/autofs-4.1.3/README.replicated-server file for additional map
format information.
o Executable maps - A map can be marked as executable. The
initscript that parses the auto.master map passes this as a program
map to the automounter. A program map is called as a script with the
key as an argument. It may return no lines of output if there is an
error, or one or more lines containing a map (with \ quoting line
breaks). This feature is useful for implementing /net functionality.
o Multi-mounts - This feature allows the automount daemon to
seek multiple lookup methods in succession. A lookup could query NIS
and file maps, for example.
All users of autofs should upgrade to this updated package, which
resolve these issues.
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Taking Action
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You may address the issues outlined in this advisory in two ways:
- select your server name by clicking on its name from the list
available at the following location, and then schedule an
errata update for it:
https://rhn.redhat.com/network/systemlist/system_list.pxt
- run the Update Agent on each affected server.
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Changing Notification Preferences
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To enable/disable your Errata Alert preferences globally please log in to RHN
and navigate from "Your RHN" / "Your Account" to the "Preferences" tab.
URL: https://rhn.redhat.com/network/my_account/my_prefs.pxt
You can also enable/disable notification on a per system basis by selecting an
individual system from the "Systems List". From the individual system view
click the "Details" tab.
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Affected Systems List
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This Errata Advisory may apply to the systems listed below. If you know that
this errata does not apply to a system listed, it might be possible that the
package profile for that server is out of date. In that case you should run
'up2date -p' as root on the system in question to refresh your software profile.
There are 20 affected systems registered in 'Your RHN' (only systems for
which you have explicitly enabled Errata Alerts are shown).
Release Arch Profile Name
-------- -------- ------------
3AS i686 durian.nac.uci.edu
3AS i686 br.nac.uci.edu
3WS x86_64 m33.ps.uci.edu
3WS i686 montana.nac.uci.edu
3AS i686 hydra.nac.uci.edu
3AS i686 p02.es.uci.edu
3AS x86_64 mpc64.nacs.uci.edu
3AS i686 mothra.nac.uci.edu
3AS x86_64 narg.nac.uci.edu
3AS i686 nebraska.nac.uci.edu
3AS i686 vesta.nac.uci.edu
3AS i686 bounce2.nac.uci.edu
3AS i686 cpl-console.nac.uci.edu
3AS x86_64 pxe.es.uci.edu
3WS i686 node-xeon-4
3WS i686 node-xeon-10
3AS i686 bill.ps.uci.edu
3AS x86_64 iwt01.nac.uci.edu
3AS x86_64 iwt03.nac.uci.edu
3AS x86_64 iwt02.nac.uci.edu
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