Restore the pre-OEM behavior: a disk with no unallocated free space has just one viable mode, so the wizard skips the mode picker and goes straight to the overwrite confirmation. The picker appears only when a free-space install is also on offer. Also give the harness's first-boot SSH bootstrap more headroom (360s): an encrypted OEM first boot re-keys LUKS and rebuilds the UKI before sshd settles, which can exceed 180s under parallel VM load. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>