Public bug reported:
Binary package hint: mountall
I have both / and /home on seperate luks encrypted partitions. / is
decrypted using my passkey by the initramfs and /home is decrypted using
a keyfile stored on / by the init scripts.
After upgrading from mountall 0.1.8 to 0.2.0 my system foze at boot. The
last things it does before freezing is loading apparmor, fscking /boot
and fscking /. It never gives any output related to decrypring or
fscking /home.
After some trial and error I found a workaround:
In grub I replaced "ro quiet splash" with "text rw init=/bin/bash". I don't
know if "text" is nessesary in the final version of the workaround, but during
some previous trials I got a hung X with no ability to switch to text console.
Then I entered my passphrase for / as usual.
After I while I got a root prompt and issuedd the following commands:
mkdir /dev/shm /dev/pts # Don't know if this was nessesary, but df errored out
becouse they was missing
cryptsetup luksOpen /dev/sdb2 faolain-home # This is my home partition
mount -a
mount -o remount,ro / # As the system otherwise hangs while fscking root
exec init
At this point the boot sequence resumes. First it fscks / (but not /boot or
/home), then it tries to decrypt my three luks partions (/, swap and /home),
but ofcourse / and /home fails (as they are already decrypted), and then the
rest of the init scripts run and I get a login prompt (textual as that is what
I requested in grub).
At this point I downloaded the mountall 0.1.8 deb using wget and
installed it using dpkg -i, and after the next reboot it started
working again.
I havn't quite figgured out what exactly caused the problem, but I think
mountall tried to fsck /dev/mapper/faolain-home before cryptsetup got a
chance to decrypt it. This is as it fscked /boot before running
cryptsetup, and I believe /boot and /home should be fscked at the same
time, as they have the same pass value in /etc/fstab
========================================
My /etc/crypttab
========================================
faolain-root UUID=3443152a-2b1c-405b-b904-e09d5c05d759 none luks
faolain-swap UUID=576ca4ba-940c-48c3-afc1-dd11e83e48d3
/etc/cryptkeys/faolain-swap luks
faolain-home UUID=a230afe6-c04d-4951-9ef8-2c796251906f
/etc/cryptkeys/faolain-home luks
========================================
========================================
My /etc/fstab
========================================
# /etc/fstab: static file system information.
#
# <file system> <mount point> <type> <options>
<dump> <pass>
proc /proc proc defaults
0 0
LABEL=faolain-swap none swap sw
0 0
LABEL=faolain-boot /boot ext2 relatime,nosuid,nodev
0 2
LABEL=faolain-root / ext3
relatime,barrier=1,user_xattr,acl,errors=remount-ro 0 1
LABEL=faolain-home /home ext3
relatime,barrier=1,user_xattr,acl,nosuid,nodev 0 2
tmpfs /tmp tmpfs nosuid,nodev,mode=1777
0 0
tmpfs /var/tmp tmpfs nosuid,nodev,mode=1777
0 0
========================================
ProblemType: Bug
Architecture: i386
Date: Sat Oct 10 08:16:36 2009
DistroRelease: Ubuntu 9.10
Package: mountall 0.1.8
ProcEnviron:
LANGUAGE=sv_SE:sv:en_GB:en
PATH=(custom, no user)
LANG=sv_SE.UTF-8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-13.43-generic
SourcePackage: mountall
Uname: Linux 2.6.31-13-generic i686
** Affects: mountall (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386
--
System frezes after fscking root
https://bugs.launchpad.net/bugs/447817
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