Bug#708430: grub-efi-amd64: Install grub to the removable media fallback too!

[Svante Signell]

severity 708430 grave
found 708430 2.000-15
thanks

Package: grub-efi-amd64
Version: 2.00-15 
Severity: grave

After successfully being able to boot Windows 8 and and GNU/Linux using
the Wheezy Debian Installer, an update of grub-efi-amd64 left me with a
grub rescue prompt after a reboot. First time was after installing
Wheezy.

The workaround is:
1) Boot in rescue mode from a Wheezy/Jessie/Sid CD/DVD/netinst image.
2) mount /dev/sda? (2 in my case) containing /boot/efi with an installer
rescue shell.
3) Make a backup of /boot/efi/EFI/Boot/bootx64.efi
4) cp -p /boot/efi/EFI/debian/grubx64.efi to /boot/efi/EFI/Boot/bootx64.efi
5) Reboot happily :)

(I think this should be documented somewhere, especially if this bug
does not result in any change)

Please install /boot/efi/EFI/debian/grubx64.efi also
in /boot/efi/EFI/boot/ named boot64.efi. On my computer, and Acer
Predator G362,0 the UEFI boot loader is looking there for that file not
in the debian directory! This issue was discussed on debian-boot in May,
starting at
http://lists.debian.org/debian-boot/2013/05/msg00236.html
and in bug #708430, entitled: "need to also install grub to the
removable media fallback path?", regarding problems with a Toshiba box
(and my Acer).