I am seeing this problem recently on an Ubuntu 14.04 server system where I don't remember seeing it before. There are no recent changes to the grub version on the system, and there are no recent changes to the filesystem layout.
This is a serious bug, because it appears to block the boot indefinitely with this error. ** Changed in: grub2 (Ubuntu) Assignee: (unassigned) => Mathieu Trudel-Lapierre (mathieu-tl) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1274320 Title: Error: diskfilter writes are not supported To manage notifications about this bug go to: https://bugs.launchpad.net/grub/+bug/1274320/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs