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
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https://bugs.launchpad.net/bugs/1181720
Title:
grub with partition detection issues (horribly slow) since recent
update in 13.04
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