This bug was fixed in the package grub-installer - 1.78ubuntu28
--------------- grub-installer (1.78ubuntu28) vivid; urgency=medium
[ Phillip Susi ] * Don't try to mark a partition as active, except on grub-pc. This was causing failures for grub-efi (LP: #1303790). -- Timo Aaltonen <email address hidden> Sat, 04 Apr 2015 16:48:58 +0300
This bug was fixed in the package grub-installer - 1.78ubuntu28
---------------
grub-installer (1.78ubuntu28) vivid; urgency=medium
[ Phillip Susi ]
* Don't try to mark a partition as active, except on grub-pc.
This was causing failures for grub-efi (LP: #1303790).
-- Timo Aaltonen <email address hidden> Sat, 04 Apr 2015 16:48:58 +0300