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Update UEFI workaround for Qubes 3.2

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QubesOS/qubes-issues#2046
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Marek Marczykowski-Górecki 2016-06-07 12:35:11 +02:00
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troubleshooting/uefi-troubleshooting.md
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@ -18,15 +18,28 @@ There is some [common bug in UEFI implementation](http://xen.markmail.org/messag
2. At the end of `chainloader` line add `/mapbs /noexitboot`.
3. Perform installation normally, but not reboot system at the end yet.
4. Go to `tty2` (Ctrl-Alt-F2).
5. Execute `mount | grep boot/efi` and note device name (first column). It should be something like `/dev/sda1`.
6. Execute `efibootmgr -v`, search for `Qubes` entry and note its number (it should be something like `Boot0001` - `0001` is an entry number).
7. Replace existing `Qubes` entry with modified one. Replace `XXXX` with entry number from previous step, `/dev/sda` with your disk name and `-p 1` with `/boot/efi` partition number):
5. Enable `/mapbs /noexitboot` on just installed system. This step differs between Qubes releases:
* for Qubes 3.1:
efibootmgr -b XXXX -B
efibootmgr -v -c -u -L Qubes -l /EFI/qubes/xen.efi -d /dev/sda -p 1 "placeholder /mapbs /noexitboot"
5. Execute `mount | grep boot/efi` and note device name (first column). It should be something like `/dev/sda1`.
6. Execute `efibootmgr -v`, search for `Qubes` entry and note its number (it should be something like `Boot0001` - `0001` is an entry number).
7. Replace existing `Qubes` entry with modified one. Replace `XXXX` with entry number from previous step, `/dev/sda` with your disk name and `-p 1` with `/boot/efi` partition number):
8. Compare new entry with the old one (printed in step 6) - it should only differ in additional options at the end.
9. Now you can reboot the system by issuing `reboot` command.
efibootmgr -b XXXX -B
efibootmgr -v -c -u -L Qubes -l /EFI/qubes/xen.efi -d /dev/sda -p 1 "placeholder /mapbs /noexitboot"
8. Compare new entry with the old one (printed in step 6) - it should only differ in additional options at the end.
9. Now you can reboot the system by issuing `reboot` command.
* for Qubes 3.2 or later:
5. Edit `/mnt/sysimage/boot/efi/EFI/qubes/xen.cfg` (you can use `vi` editor) and add to every kernel section:
mapbs=1
noexitboot=1
9. Now you can reboot the system by issuing `reboot` command.
System crash/restart when booting installer