On Tue, May 29, 2018 at 5:28 PM, Emanuele Rocca <e...@debian.org> wrote: > This issue is reproducible if the installer is starting in UEFI mode > (grub says "Debian GNU/Linux UEFI Installer menu") but CSM Support is > disabled in the Thinkpad Setup screen, which is the one you access by > pressing F1 at boot. > > Set CSM Support to "Yes" under Startup -> UEFI/Legacy Boot to get past > this.
Thank you, Emanuele! Setting CSM fixes the problem. -Matti