I can confirm this bug for Oneric. I've added a new 6th disk to md raid5
(grew it), several days later I've uprgaded the kernel (apt-get dist-
upgrade), system was not rebooted between these two events. When grub
was configured for a new kernel numerous "error: found two disks with
the index 5 for RAID md1. " messages were diplayed (full
/var/apt/term.log below). System functions properly after the reboot.
root@server:/var/log/apt# cat /proc/mdstat
Personalities : [raid6] [raid5] [raid4] [linear] [multipath] [raid0] [raid1]
[raid10]
md1 : active raid5 sdg1[1] sdf1[4] sde1[2] sdc1[0] sdd1[3] sda1[5]
9767559680 blocks level 5, 64k chunk, algorithm 2 [6/6] [UUUUUU]
>sda is the new disk.
unused devices: <none>
root@server:/var/log/apt# uname -a
Linux server 3.0.0-24-generic-pae #40-Ubuntu SMP Tue Jul 24 15:55:26 UTC 2012
i686 athlon i386 GNU/Linux
Log started: 2012-08-11 10:25:15
Selecting previously deselected package linux-image-3.0.0-24-generic-pae.
(Reading database ... 252585 files and directories currently installed.)
Unpacking linux-image-3.0.0-24-generic-pae (from
.../linux-image-3.0.0-24-generic-pae_3.0.0-24.40_i386.deb) ...
Done.
Preparing to replace linux-generic-pae 3.0.0.23.27 (using
.../linux-generic-pae_3.0.0.24.28_i386.deb) ...
Unpacking replacement linux-generic-pae ...
Preparing to replace linux-image-generic-pae 3.0.0.23.27 (using
.../linux-image-generic-pae_3.0.0.24.28_i386.deb) ...
Unpacking replacement linux-image-generic-pae ...
Selecting previously deselected package linux-headers-3.0.0-24.
Unpacking linux-headers-3.0.0-24 (from
.../linux-headers-3.0.0-24_3.0.0-24.40_all.deb) ...
Selecting previously deselected package linux-headers-3.0.0-24-generic-pae.
Unpacking linux-headers-3.0.0-24-generic-pae (from
.../linux-headers-3.0.0-24-generic-pae_3.0.0-24.40_i386.deb) ...
Preparing to replace linux-headers-generic-pae 3.0.0.23.27 (using
.../linux-headers-generic-pae_3.0.0.24.28_i386.deb) ...
Unpacking replacement linux-headers-generic-pae ...
Setting up linux-image-3.0.0-24-generic-pae (3.0.0-24.40) ...
Running depmod.
update-initramfs: deferring update (hook will be called later)
Examining /etc/kernel/postinst.d.
run-parts: executing /etc/kernel/postinst.d/dkms 3.0.0-24-generic-pae
/boot/vmlinuz-3.0.0-24-generic-pae
run-parts: executing /etc/kernel/postinst.d/initramfs-tools
3.0.0-24-generic-pae /boot/vmlinuz-3.0.0-24-generic-pae
update-initramfs: Generating /boot/initrd.img-3.0.0-24-generic-pae
run-parts: executing /etc/kernel/postinst.d/pm-utils 3.0.0-24-generic-pae
/boot/vmlinuz-3.0.0-24-generic-pae
run-parts: executing /etc/kernel/postinst.d/update-notifier
3.0.0-24-generic-pae /boot/vmlinuz-3.0.0-24-generic-pae
run-parts: executing /etc/kernel/postinst.d/zz-update-grub 3.0.0-24-generic-pae
/boot/vmlinuz-3.0.0-24-generic-pae
error: found two disks with the index 5 for RAID md1.
error: found two disks with the index 5 for RAID md1.
Generating grub.cfg ...
error: found two disks with the index 5 for RAID md1.
error: found two disks with the index 5 for RAID md1.
error: found two disks with the index 5 for RAID md1.
error: found two disks with the index 5 for RAID md1.
error: found two disks with the index 5 for RAID md1.
error: found two disks with the index 5 for RAID md1.
error: found two disks with the index 5 for RAID md1.
error: found two disks with the index 5 for RAID md1.
error: found two disks with the index 5 for RAID md1.
error: found two disks with the index 5 for RAID md1.
error: found two disks with the index 5 for RAID md1.
Found linux image: /boot/vmlinuz-3.0.0-24-generic-pae
Found initrd image: /boot/initrd.img-3.0.0-24-generic-pae
error: found two disks with the index 5 for RAID md1.
error: found two disks with the index 5 for RAID md1.
error: found two disks with the index 5 for RAID md1.
error: found two disks with the index 5 for RAID md1.
Found linux image: /boot/vmlinuz-3.0.0-23-generic-pae
Found initrd image: /boot/initrd.img-3.0.0-23-generic-pae
Found linux image: /boot/vmlinuz-3.0.0-22-generic-pae
Found initrd image: /boot/initrd.img-3.0.0-22-generic-pae
Found linux image: /boot/vmlinuz-3.0.0-21-generic-pae
Found initrd image: /boot/initrd.img-3.0.0-21-generic-pae
Found linux image: /boot/vmlinuz-2.6.38-11-generic-pae
Found initrd image: /boot/initrd.img-2.6.38-11-generic-pae
error: found two disks with the index 5 for RAID md1.
error: found two disks with the index 5 for RAID md1.
error: found two disks with the index 5 for RAID md1.
error: found two disks with the index 5 for RAID md1.
error: found two disks with the index 5 for RAID md1.
Found memtest86+ image: /memtest86+.bin
done
Setting up linux-image-generic-pae (3.0.0.24.28) ...
Setting up linux-generic-pae (3.0.0.24.28) ...
Setting up linux-headers-3.0.0-24 (3.0.0-24.40) ...
Setting up linux-headers-3.0.0-24-generic-pae (3.0.0-24.40) ...
Examining /etc/kernel/header_postinst.d.
run-parts: executing /etc/kernel/header_postinst.d/dkms 3.0.0-24-generic-pae
/boot/vmlinuz-3.0.0-24-generic-pae
Setting up linux-headers-generic-pae (3.0.0.24.28) ...
Log ended: 2012-08-11 10:26:39
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https://bugs.launchpad.net/bugs/776422
Title:
[Natty] Grub no longer recognizes raid5 array
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