| 2014-08-02 01:27:07 |
uxeng |
bug |
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added bug |
| 2014-08-02 01:29:22 |
uxeng |
affects |
cryptsetup (Ubuntu) |
lvm2 (Ubuntu) |
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| 2014-08-02 13:46:20 |
uxeng |
summary |
boot fails on raid (md raid1) + LVM (combined / + /boot) + degraded |
boot fails on degraded raid (mdraid) due to LVM root (combined / + /boot) missing device tables at mount time |
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| 2014-08-03 13:24:34 |
uxeng |
attachment added |
|
dmesg_upto_premount_degraded.txt https://bugs.launchpad.net/ubuntu/+source/lvm2/+bug/1351528/+attachment/4168673/+files/dmesg_upto_premount_degraded.txt |
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| 2014-08-03 13:29:40 |
uxeng |
attachment added |
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dmesg_upto_premount_normal.txt https://bugs.launchpad.net/ubuntu/+source/lvm2/+bug/1351528/+attachment/4168674/+files/dmesg_upto_premount_normal.txt |
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| 2014-08-04 22:39:14 |
uxeng |
summary |
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 |
|
| 2014-08-04 22:40:18 |
uxeng |
summary |
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 |
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| 2014-08-04 22:43:16 |
uxeng |
description |
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. |
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.]
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 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. |
|
| 2014-11-12 21:37:40 |
Launchpad Janitor |
lvm2 (Ubuntu): status |
New |
Confirmed |
|
| 2014-11-13 12:16:01 |
Mark Thornton |
bug |
|
|
added subscriber Mark Thornton |
| 2015-08-07 14:55:36 |
Raulo |
bug |
|
|
added subscriber Sven Ehret |
