So to resume, what we surely know ? The "malformed file" appear if more than one block is used : so the question of multiple blocks
The actual grub used (2.02~beta2.10) has not having that issue when kernel prior to 3.15 is used That issue appear with ext4 partition So this seems related to how the recent kernels now work with ext4 and how grub do. Browsing the grub upstream list bugs, i feel the main cause is reported as : http://savannah.gnu.org/bugs/?42466 and the new ext4 kernel rule: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/fs/ext4/namei.c?id=455c6fdbd219161bd09b1165f11699d6d73de11c#n2831 ** Bug watch added: GNU Savannah Bug Tracker #42466 http://savannah.gnu.org/bugs/?42466 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1311247 Title: [Grubenv] error: malformed file, press any key to continue To manage notifications about this bug go to: https://bugs.launchpad.net/grub/+bug/1311247/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
