It seemed to work. After wiping out the lvm with gparted, the installation went forward as expected.

There should be a log somewhere or terminal session that shows error message from the installer.

Thanks!

Mark

On Wed, Jul 20, 2022 at 4:31 PM Matt Graham via PLUG-discuss <plug-discuss@lists.phxlinux.org> wrote:

On 2022-07-20 14:56, Mark Phillips via PLUG-discuss wrote:
> I have an older System 76 laptop running 18.04 in a lvm across 2
> disks (1 TB and 2 TB).
>
> I downloaded 22.04 desktop iso, verified it, installed it on a USB
> drive [...] When I try to install it, I get as far as the 5th screen,
> Installation Type, where I select the 1 TB drive and hit continue.
> Nothing happens after that. I had selected normal installation,
> download updates, and erase disk. [...]
>
> Could this have anything to do with the lvm currently installed
> across the two drives? Should I go into the "try" part of the USB
> drive, open gparted, and reformat the two internal drives, then start
> the installation again?

This is what I'd try.  Some part of the installer is probably scanning
for stuff, getting confused by seeing this LVM setup, and refusing to
erase the partition table and/or LVM metadata.  If nothing else, you can
then test your "restore all non-OS data from backups" procedure this
way, which is always a useful thing to do.

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