subiquity raid+lvm installation failed

Bug #1784124 reported by Michael Kofler on 2018-07-28
12
This bug affects 2 people
Affects Status Importance Assigned to Milestone
subiquity
Undecided
Unassigned

Bug Description

I just tested Subiquity as of 18.04.1 in a virtual machine with two disks.

first try:

I wanted to join two disks to RAID-1, then setup LVM on the RAID, then setup 3 logical volumes for /boot, / and swap. This failed, Subiquity insists that /boot is directly on a disk.

second try:

I created two RAID-1 volumes, a small one for /boot and a large on for LVM. /boot directly in the first RAID-1 volume, LVM in the second volume. Logical volumes for / and swap. This failed also, Subiquity still insists on /boot on local disk. (This makes the whole idea of RAID obsolete. If the wrong disk fails, I won't be able to boot.)

third try:

/boot directly on disk 1. The remaining space of disk 1 and all space on disk2 combined to RAID 1, in it LVM, there two LVs for / and swap. Subiquity accepts this setup, but the installation fails soon afterwards with 'an error has occurred'. Quite helpful ...

I attached one screenshot with my setup, will try to add two more screenshots lateron.

Michael Kofler (michael-kofler) wrote :
Michael Kofler (michael-kofler) wrote :
Michael Kofler (michael-kofler) wrote :
Michael Hudson-Doyle (mwhudson) wrote :

The can't create /boot on RAID thing is unfortunate but fiddly and didn't get fixed in time for the point release. I'm not sure why your final attempt failed, we need to implement subiquity collect-logs or something similar :/

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