I am experiencing these same symptoms while trying to install Ubuntu 18.04 in UEFI mode with a 4-disk RAID10 as root on my R410. ESP gets mounted at /boot/efi, kernel/ramdisk get installed to /boot, and the ESP's grub.cfg points to another grub.cfg that is only accessable after the array is assembled. The result on boot is Grub CLI that isn't able to identify any partitions (ie 'ls (hd0)' results in an unknown filesystem error). Will try above soon and report back.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1229738 Title: grub doesn't boot with efi and md raid root To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1229738/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
