hey, On 05/09/2009 Paul Millar wrote: > vedrfolnir:~# ls -l /dev/mapper > total 0 > crw-rw---- 1 root root 10, 60 2009-09-04 19:06 control > lrwxrwxrwx 1 root root 7 2009-09-04 19:06 sdb2_crypt -> ../dm-0 > lrwxrwxrwx 1 root root 7 2009-09-04 19:06 vedrfolnir-home -> ../dm-6 > lrwxrwxrwx 1 root root 7 2009-09-04 19:06 vedrfolnir-root -> ../dm-1 > lrwxrwxrwx 1 root root 7 2009-09-04 19:06 vedrfolnir-swap_1 -> ../dm-4 > lrwxrwxrwx 1 root root 7 2009-09-04 19:06 vedrfolnir-tmp -> ../dm-5 > lrwxrwxrwx 1 root root 7 2009-09-04 19:06 vedrfolnir-usr -> ../dm-2 > lrwxrwxrwx 1 root root 7 2009-09-04 19:06 vedrfolnir-var -> ../dm-3 > > vedrfolnir:~# cat /etc/mtab > /dev/dm-1 / ext3 rw,errors=remount-ro 0 0 > tmpfs /lib/init/rw tmpfs rw,nosuid,mode=0755 0 0 > proc /proc proc rw,noexec,nosuid,nodev 0 0 > sysfs /sys sysfs rw,noexec,nosuid,nodev 0 0 > udev /dev tmpfs rw,mode=0755 0 0 > tmpfs /dev/shm tmpfs rw,nosuid,nodev 0 0 > devpts /dev/pts devpts rw,noexec,nosuid,gid=5,mode=620 0 0 > /dev/sda1 /boot ext2 rw 0 0 > /dev/dm-6 /home ext3 rw 0 0 > /dev/dm-5 /tmp ext3 rw 0 0 > /dev/dm-2 /usr ext3 rw 0 0 > /dev/dm-3 /var ext3 rw 0 0 > rpc_pipefs /var/lib/nfs/rpc_pipefs rpc_pipefs rw 0 0 > fusectl /sys/fs/fuse/connections fusectl rw 0 0 > nfsd /proc/fs/nfsd nfsd rw 0 0 > > > i guess that you discovered the same bug as #544487. > > Yes, that bug looks pretty similar. Certainly the sym. links from > /dev/mapper > to /dev/dm* mentioned in that bug are also present here.
so indeed the problem here is that files in /dev/mapper are symlinks rather than devices. i don't know what exactly triggered that change, but it must be a recent upgrade of some package related to device-mapper, udev and/or kernel. nevertheless, we'll need to add support for /dev/dm-* devices in cryptroot initramfs script/hook. a quick check revealed that dmsetup doesn't support /dev/dm-* devices as arguments. thus cryptroot needs to find out the name in /dev/mapper/, regardless whether it's a symlink or the actual device file. so i guess that canonical_devie() needs to check whether the device is something like /dev/dm-* and transform that into the corresponding /dev/mapper/* device/symlink before returning. i'll be on holidays until september 18. so i'll not be able to look into that before. greetings, jonas
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