I found the work around this bug on Lenovo S205. Enter the BIOS SETUP (F2 on start) and choose "Boot" entry. You can see "ubuntu" item on the top of boot sequence list and a name of your HDD below. It is need to raise this item to the top instead of "ubuntu". Press F10 to save. After that kernel can boot with "noefi" option and with that, halt/reboot/sleep working properly. Sorry for my English...
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/721576 Title: [natty] kernel panic on reboot with (U)EFI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-release-notes/+bug/721576/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
