[Bug 551055] Re: Problems when booting an encrypted lvm containing btrfs

[Vlad Zbarsky]

Vincent, here's the gutschke's patch adapted for Ubuntu Karmic. Normally
you'd install it by saving it to /tmp and running the following from the
shell:

cd /usr/share/initramfs-tools/scripts/local-top
sudo patch -p1 < /tmp/cryptsetup.ubuntu_karmic.diff
sudo update-initramfs -c -k all

However, it likely won't be enough on its own, because of bug #450260.
Till that one is fixed, you'll need to apply this patch, and still
assemble initrd manually (to make sure it contains correct
conf/conf.d/cryptroot, and btrfs.ko with libcrc32c.ko and libcrc32c.ko
dependencies, and all needed crypto modules), and edit grub.cfg or
menu.lst by hand. And may have to do the GRUB_DEVICE trick mentioned in
#450260 discussion.

** Patch added: "gutschke's patch adapted for Ubuntu Karmic"
   http://launchpadlibrarian.net/45049906/cryptsetup.ubuntu_karmic.diff

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Problems when booting an encrypted lvm containing btrfs
https://bugs.launchpad.net/bugs/551055
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