I can confirm this with the most recent version of grub2. Having three RAID 1 partitions (on sda and sdb), I briefly get a "biosdisk read error" for about half a second, then everything continues without problems.
** Changed in: grub2 (Ubuntu) Status: New => Confirmed -- grub2 shows 'biosdisk read error', then boots https://bugs.launchpad.net/bugs/396564 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs