Public bug reported: Fail to boot into Ubuntu GRUB on the platforms which legacy(8254) timer function is disabled. "8254 clock gating" is provided to disable 8254 timer to get rid of legacy and save power. The platforms with the firmware which disable the 8254 timer will fail to boot up and block on grub2 which uses the 8254 timer to calibrate the TSC.
** Affects: grub2 (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1734278 Title: Grub2 cannot boot up when 8254 time function disable To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1734278/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs