I was a bit confused about the scenario; in comment #0, it says "upgrade from Leap 15.5 to TW", yet in the y2logs I see > 2023-06-25 20:05:54 y2base called with ["installation", "--arg", "initial", "qt", "--noborder", "--auto-fonts", "--fullscreen"] yet install.inf has Upgrade: 1 AFAICS it was an upgrade from TW to TW, though. 2023-06-25 16:06:50 <1> install(6473) [Ruby] modules/RootPart.rb(CheckPartition):1341 found fstab on /dev/sda2 2023-06-25 16:06:50 <1> install(6473) [Ruby] modules/Misc.rb(SysconfigRead):182 ."/mnt/etc/os-release"."PRETTY_NAME": 'openSUSE Tumbleweed' But at least this explains my confusion about the storage setup and the lack of a "mkfs" call.