** Summary changed: - boot fails on degraded raid (mdraid) due to LVM root (combined / + /boot) missing device tables at mount time + LVM based boot fails on degraded raid due to missing device tables at premount
** Summary changed: - LVM based boot fails on degraded raid due to missing device tables at premount + boot fails for LVM on degraded raid due to missing device tables at premount ** Description changed: - Trusty installation is combined root + /boot within LVM on top of mdraid (type 1.x) RAID1 with one missing disk (degraded). - [method: basically create the setup in shell first then point install at the lvm. at end of install create a chroot and add mdadm pkg] + This is a Trusty installation with combined root + /boot within LVM on top of mdraid (type 1.x) RAID1. Raid1 was built with one missing disk (degraded). + [method: basically create raid/VG/LV setup in shell first then point installer at the lvm. At the end of the install create a chroot, add the mdadm pkg, and update-initramfs before reboot.] - boot fails with the following messages: - Incrementally starting RAID arrays... - mdadm: CREATE user root not found - mdadm: CREATE group disk not found - Incrementally starting RAID arrays... + The boot process fails with the following messages: + Incrementally starting RAID arrays... + mdadm: CREATE user root not found + mdadm: CREATE group disk not found + Incrementally starting RAID arrays... and slowly repeats the above at this point. workaround: - add break=premount to grub kernel line entry - - for continue visibility of boot output also remove quiet, splash and possibly set gxmode 640x480 + - for continued visibility of text boot output also remove quiet, splash and possibly set gxmode 640x480 now @ initramfs prompt: mdadm --detail /dev/md0 should indicate a state of clean, degraded, array is started so this part is ok lvm lvs output attributes are as follows: -wi-d---- (instead of the expected -wi-a----) lvs manpage this means device tables are missing (device mapper?) FIX: simply run lvm vgchange -ay and exit initramsfs. This will lead to a booting system. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1351528 Title: boot fails for LVM on degraded raid due to missing device tables at premount To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lvm2/+bug/1351528/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
