Public bug reported:
During installation of Focal, I choose to set up custom partitioning. I
have two disks, and I setup these two discs in a linux raid.
In addition to the autogenerated GRUB partitions which are created when
i designate each of the two disks as boot disks, I create an additional
partition which takes part in the raid device (md0).
Just after the installer attempts to begin installation, the installer
fails. The most descriptive part of the crash report is :
comparing device lists: expected: ['/dev/sda2', '/dev/sda2'] found:
['/dev/sdb2', '/dev/sda2']
An error occured handling 'raid-md127': ValueError - RAID array device list
does not match. Missing: set() Extra: {'/dev/sdb2'}
In an attempt to work around this, I jumped into a shell just after the
installer started. I then created a linux raid manually, and once a raid
was in place, proceeded with the installer. I then chose to install
Ubuntu onto the existing raid. The same error was given.
It seems that no matter what I try, the installer fails when I attempt
to install onto a linux raid.
Installation on a plain partition works fine.
** Affects: subiquity (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "Creash report from the installer"
https://bugs.launchpad.net/bugs/1876848/+attachment/5366551/+files/1588578680.390293360.install_fail.crash
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https://bugs.launchpad.net/bugs/1876848
Title:
Installation of Focal on a linux raid consistently fails
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