seems it was BIOS-related bug: http://forum.de.ts.fujitsu.com/forum/viewtopic.php?f=90&t=39045
update to BIOS version 1.10C solved the problem for me and majority users. -- 9.04 amd64 keeps rebooting on Amilo Pi 3525 https://bugs.launchpad.net/bugs/374616 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs