[Bug 864262] Re: remounting filesystems hangs uninterruptibly if network filesystems are unavailable
Stéphane Graber
stgraber at stgraber.org
Thu Feb 9 17:54:24 UTC 2012
Was going to mark this Fix released (well, actually did) as friendly-
recovery now starts udev by default bringing up the network in quite a
few cases, but then I thought of desktop installs with Network Manager
where the network indeed won't be online at the time we call mountall
...
So keeping the bug open for now, will have to think about the best way
to deal with this ...
** Changed in: friendly-recovery (Ubuntu)
Status: New => Fix Released
** Changed in: friendly-recovery (Ubuntu)
Status: Fix Released => Triaged
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https://bugs.launchpad.net/bugs/864262
Title:
remounting filesystems hangs uninterruptibly if network filesystems
are unavailable
Status in “friendly-recovery” package in Ubuntu:
Triaged
Bug description:
The "mount filesystems" and "check filesystems" options work by
calling mountall. This is the correct thing to do; however, if there
are filesystems listed in the fstab that are unavailable (for
instance, because they're network filesystems and the network hasn't
been brought up, or the server is down, or they refer to unavailable
disks), mountall will hang *indefinitely* waiting for them to become
available - particularly in the case of filesystems that it knows are
network filesystems.
This is not a problem when it happens during a normal boot, because
mountall will continue to run in the background. However, when
mountall is run from friendly-recovery, it becomes the foregrounded
console process and there's no way to reasonably interrupt this to
return to the recovery menu - you effectively have to reboot to get
back to the other recovery options (and probably use SysRq in the
process if you want to actually ensure your rootfs gets cleanly
unmounted).
We probably need some improvements to the mountall interface to allow
a "one-shot" approach to mounting network filesystems when called from
friendly-recovery.
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: friendly-recovery 0.2.18
ProcVersionSignature: Ubuntu 3.0.0-11.18-generic 3.0.4
Uname: Linux 3.0.0-11-generic x86_64
ApportVersion: 1.23-0ubuntu2
Architecture: amd64
Date: Sat Oct 1 12:29:46 2011
InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release amd64 (20100816.1)
PackageArchitecture: all
ProcEnviron:
PATH=(custom, user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: friendly-recovery
UpgradeStatus: Upgraded to oneiric on 2011-09-23 (7 days ago)
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