Comment 0 for bug 1351528
Revision history for this message
| uxeng (listmail) wrote boot fails on raid (md raid1) + LVM (combined / + /boot) + degraded | #0 |
© 2004
Canonical Ltd.
•
Terms of use
•
Data privacy
•
Contact Launchpad Support
•
Blog
•
Careers
•
System status
•
513534c
demo site
(Get the code!)
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]
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...
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
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.