C[omp]ute

From: andrew cooke <andrew@...>

Date: Wed, 19 Feb 2014 15:14:28 -0300

A week or two back, I shut down my ASUS 1015E netbook(ish) and took it on
holiday.  When I tried to turn it back on, it wouldn't boot.  As far as I
could tell it had lost the EFI boot doodah (a technical term).

The issue is here https://bugzilla.novell.com/show_bug.cgi?id=863409 but if
you have the same problem, here's how you fix it:

 - boot from the OpenSuse installer disk, selecting "Rescue System"

 - log in as root (no password)

 - execute the following commands:

     modprobe efivars
     mount /dev/sda3 /mnt  # this assumes you mount /dev/sda3 as /
     cat /mnt/etc/fstab    # to check the partition path for the next step
     mount /dev/sda1 /mnt/boot/efi   # assuming that is as above
     mount --bind /proc /mnt/proc
     mount --bind /sys /mnt/sys
     mount --bind /dev /mnt/dev
     chroot /mnt
     update-bootloader --reinit

The above assumes that the main system is on /dev/sda3 and the EFI partition
is /dev/sda1 - you may need to change those (/dev/sda2 is swap and not used
here).

After that, you can reboot (ctrl-D then "shutdown -r now").

Big thanks to Michael Chang at Suse.

[I guess it's obvious, but the above loads a required kernel module, then sets
up the disk and chroots into your old system.  Finally you re-install the
bootloader.]

Andrew