This Bug still exists with Version: grub-pc: 2.02~beta2-36ubuntu3.2
os-prober 1.70ubuntu3 Furthermore, it also exists for a non-RAID system with 4 linux (ubuntu+mint) system partitions. Seems the problem aren't the results of os-prober itself: /dev/sda1:Microsoft Windows XP Professional:Windows:chain /dev/sda6:Ubuntu 16.04.1 LTS (16.04):Ubuntu:linux /dev/sda9:Ubuntu 14.04.5 LTS (14.04):Ubuntu1:linux /dev/sdb6:Ubuntu 10.04.4 LTS (10.04):Ubuntu2:linux but the grub-mkconfig process which produces weird results in Section: ### BEGIN /etc/grub.d/30_os-prober ### . . ### END /etc/grub.d/30_os-prober ### (lines 398 to 7421) Example attachment grub.cfg: ** Attachment added: "Example grub.cfg created on non-raid system 12/26/2016" https://bugs.launchpad.net/ubuntu/+source/os-prober/+bug/1163086/+attachment/4796487/+files/grub.cfg -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1163086 Title: os-prober created a 11.6 MB grub.cfg file impossible to boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/os-prober/+bug/1163086/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs