This is a very old LP bug, but for completeness it worth mentioning here that recently some patches were merged on initramfs-tools and cryptsetup, that allow a good experience booting with LUKS-encrypted rootfs on top of a degraded RAID1 array; for details, please check: https://bugs.launchpad.net/ubuntu/+source/cryptsetup/+bug/1879980
Cheers, Guilherme -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to initramfs-tools in Ubuntu. https://bugs.launchpad.net/bugs/120375 Title: cannot boot raid1 with only one disk Status in initramfs-tools: Fix Released Status in grub package in Ubuntu: Fix Released Status in initramfs-tools package in Ubuntu: Fix Released Status in mdadm package in Ubuntu: Fix Released Status in grub source package in Hardy: Fix Released Status in initramfs-tools source package in Hardy: Fix Released Status in mdadm source package in Hardy: Fix Released Bug description: The impact of the bug on users: Systems with root on a RAID array will not be able to boot if the array is degraded. Usrs affected by this will encounter an unusable system after a reboot (say, a kernel upgrade). Justification for backporting the fix to the stable release: Hardy is a LTS edition. It is expected that people will continue to use this version and not upgrade to Intrepid. People who have upgrade from Dapper LTS to Hardy LTS are affected too. TEST CASE Build a clean system with root on RAID, with Ubuntu 8.04 LTS. Degrade the root array. Reboot and shiver. A discussion of the regression potential of the patch and how users could get inadvertently effected. - the only users that could be affected, as fas as know, are the ones that already made a workaround and altered their system files accordingly. Binary package hint: mdadm if i unplug one hd from raid1 i cannot successfully boot because raid starts only if all disks are available through : "${MD_DEGRADED_ARGS:= --no-degraded}" in /usr/share/initramfs- tools/scripts/local-top/mdadm my workaround is: /etc/initramfs-tools/hooks/startdegradedraid #!/bin/sh # # Copyright <C2><A9> 2006 Martin F. Krafft <madd...@debian.org> # based on the scripts in the initramfs-tools package. # released under the terms of the Artistic Licence. # # $Id: hook 281 2006-12-08 08:14:44Z madduck $ # set -eu PREREQ="udev" prereqs() { echo "$PREREQ" } case ${1:-} in prereqs) prereqs exit 0 ;; esac MDADM=$(command -v mdadm 2>/dev/null) || : [ -x $MDADM ] || exit 0 DESTCONFIG=$DESTDIR/conf/md.conf echo "MD_DEGRADED_ARGS=' '" >> $DESTCONFIG exit 0 To manage notifications about this bug go to: https://bugs.launchpad.net/initramfs-tools/+bug/120375/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
