I managed to track the problem down to bterm, which segfaults. I could use the installer passing the boot option "debian-installer/framebuffer=false".
This bug seems to be related to #232720. Many thanks to Petter Reinholdtsen (pere) on irc (#debian-boot). regards, Reinhard -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]