*** This bug is a duplicate of bug 1061639 ***
https://bugs.launchpad.net/bugs/1061639
I agree with Christian. Even though the unmount issues don't seem to
happen on my testing machine anymore, shutting down still "feels" weird.
Just shut down a 12.04 machine and compare it to a 12.10 machine. You'll
just know that something is wrong. It hangs, it takes a long time, and
for some people, it still causes harmful issues. And it's almost release
time.
Add this to the Amazon mess, and Ubuntu will have the worst publicity in
years; if not ever.
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https://bugs.launchpad.net/bugs/1058987
Title:
In Quantal, the root filesystem is not cleanly unmounted at shutdown
or reboot
Status in “network-manager” package in Ubuntu:
Incomplete
Bug description:
Ever since some update in the Quantal pre-releases, having dnsmasq-
base installed will cause the root filesystem to not be properly
unmounted on shutdown and reboot. In case the Plymouth splash screen
is disabled, the message 'mount: / is busy' will be shown, but
otherwise the user will not even be aware of this problem.
After rebooting, the root filesystem needs recovery, as shown in
dmesg:
kevin@vbox-xubuntu-quantal:~$ dmesg | grep EXT4
[ 1.022746] EXT4-fs (sda2): INFO: recovery required on readonly filesystem
[ 1.022750] EXT4-fs (sda2): write access will be enabled during recovery
[ 1.248294] EXT4-fs (sda2): recovery complete
[ 1.248661] EXT4-fs (sda2): mounted filesystem with ordered data mode.
Opts: (null)
[ 1.456315] EXT4-fs (sda2): re-mounted. Opts: errors=remount-ro
Yet again, the user will not be aware of this until it is too late.
The only way to avoid this from happening (or at least what I've
found) is running 'sudo apt-get purge dnsmasq-base'. Sadly, this also
removes network-manager and network-manager-gnome, so it isn't really
a viable solution.
Another problem that might be related is that having an active
connection with the Network Manager prior to shutting down or
rebooting, will cause the process to hang for a few seconds, after
which the message about / being busy is shown. Stopping the network
service (sudo service networking stop) will solve the hanging, but not
the unclean unmount. So far, only purging dnsmasq-base seems to do
that, which obviously also solves the other problem, as Network
Manager will then also be removed.
Although I haven't experienced it yet, this could cause potential data
loss; especially for users without a seperate /home partition.
ProblemType: Bug
ApportVersion: 2.5.3-0ubuntu1
Architecture: amd64
Date: Sun Sep 30 12:49:24 2012
DistroRelease: Ubuntu 12.10
Package: dnsmasq-base 2.63-1ubuntu1
PackageArchitecture: amd64
ProcVersionSignature: Ubuntu 3.5.0-16.25-generic 3.5.4
SourcePackage: dnsmasq
Tags: quantal
Uname: Linux 3.5.0-16-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
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