Hi Phillip, 1. my reference to extlinux was simply because a new directory /boot/extlinux popped up that wasn't there in 12.04. 2. update-grub has always created one grub boot menu entry for my md0 root partition and then two additional entries for sda1 & sdb1 (the two md0 RAID1 members) - so, in a way, raid does affect the menu ;)...
Please find the requested bootinfoscript output attached, it is a somewhat convoluted dual boot setup with Ubuntu spread across a raid1 and lvm on raid1... I have been able to narrow down the problem to os-prober (so you might have to reassign the bug to that package): Setting "GRUB_DISABLE_OS_PROBER=true" in /etc/default/grub solves the problem, as long as I add a manual entry for my Win7 dual boot in /etc/grub.d/40_custom: menuentry "Microsoft Windows 7 Professional (on /dev/sdc1)" --class windows --class os { insmod part_msdos insmod ntfs set root='(hd2,msdos1)' search --no-floppy --fs-uuid --set=root 086431136431054A drivemap -s (hd0) ${root} chainloader +1 } I have a hunch that my introduction of a SSD into the former two HDD raid setup might confuse os-prober somewhat: During the grub os-probe in 12.04 there have been complaints about "invalid LVM signatures" (possibly from sdc as I expelled that drive from the raid set with LVN on top) that have disappeared with 13.04... Thanks! ** Attachment added: "gzipped bootinfoscript output" https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1181720/+attachment/3682249/+files/boot.inf.gz -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1181720 Title: grub with partition detection issues (horribly slow) since recent update in 13.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1181720/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs