Public bug reported:
I'm trying to install Ubuntu 22.04 server edition, using /boot and / as
separate partitions, both as md array, but it fails.
Looking at log seems that the installer is looking for a device that not exists:
ValueError: Specified md device does not exist: /dev/md/md127p1
but to me seems that it is looking for a malformed device name: from
the logs it finds correctly
"device_path": "/dev/md127p1"
and in the shell I can look at it:
root@ubuntu-server:/# ls -la /dev/md*
brw-rw---- 1 root disk 9, 125 Apr 23 18:03 /dev/md125
brw-rw---- 1 root disk 259, 1 Apr 23 18:17 /dev/md125p1
brw-rw---- 1 root disk 9, 126 Apr 23 18:03 /dev/md126
brw-rw---- 1 root disk 9, 127 Apr 24 08:12 /dev/md127
brw-rw---- 1 root disk 259, 2 Apr 24 08:12 /dev/md127p1
Instead, in the /dev/md/ I find a "descriptive" name of the array, but
is not the name the installer is looking for:
root@ubuntu-server:/# ls -la /dev/md/
total 0
drwxr-xr-x 2 root root 140 Apr 24 08:12 .
drwxr-xr-x 20 root root 4860 Apr 24 08:12 ..
lrwxrwxrwx 1 root root 8 Apr 23 18:03 oscar-backend:41 -> ../md126
lrwxrwxrwx 1 root root 8 Apr 24 08:12 ubuntu-server:73 -> ../md127
lrwxrwxrwx 1 root root 10 Apr 24 08:12 ubuntu-server:73p1 -> ../md127p1
lrwxrwxrwx 1 root root 8 Apr 23 18:03 ubuntu-server:82 -> ../md125
lrwxrwxrwx 1 root root 10 Apr 23 18:17 ubuntu-server:82p1 -> ../md125p1
Also /proc/mdstat looks good:
root@ubuntu-server:/# cat /proc/mdstat
Personalities : [raid1] [raid6] [raid5] [raid4] [linear] [multipath] [raid0]
[raid10]
md125 : active raid1 sdb4[0] sdc4[1]
524155904 blocks super 1.2 [2/2] [UU]
bitmap: 0/4 pages [0KB], 65536KB chunk
md126 : active (auto-read-only) raid5 sdb5[1] sda5[3] sdc5[0]
10653326336 blocks super 1.2 level 5, 512k chunk, algorithm 2 [3/3] [UUU]
bitmap: 0/40 pages [0KB], 65536KB chunk
md127 : active raid1 sdc2[1] sdb2[0]
1046528 blocks super 1.2 [2/2] [UU]
unused devices: <none>
** Affects: curtin (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "installer log"
https://bugs.launchpad.net/bugs/1970116/+attachment/5583143/+files/1650787208.827542782.install_fail.crash.gz
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https://bugs.launchpad.net/bugs/1970116
Title:
Ubuntu 22.04 not installing on md partition
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