Am 07.04.2012 17:10, schrieb 'Chris Hall': > > I have a /home partition which is set up as a Software RAID1, using /dev/md0. > > When I reboot the /dev/md0 fails to come up cleanly. So far it has come back > each time, but nearly every time it comes up with one of the two members of > the RAID array missing. I can mdadm /dev/md0 --re-add /dev/sdb3 -- and all > is apparently well again. But I have this partition as RAID for a reason, > and it scares the bejazus out of me each time :-( > > Any clues as to what spells I have failed to cast?
that was discussed several times and is a bug you can workaround easy
as you see below all raid-uuids are passed with "rd_MD_UUID=" as
additional kernel-parameters, after that this will not happen again
(ignore the ton of other kernel-params in my setup)
[root@srv-rhsoft:~]$ cat /etc/mdadm.conf
MAILADDR root
AUTO +imsm +1.x -all
ARRAY /dev/md0 level=raid1 num-devices=4
UUID=1d691642:baed26df:1d197496:4fb00ff8
ARRAY /dev/md1 level=raid10 num-devices=4
UUID=b7475879:c95d9a47:c5043c02:0c5ae720
ARRAY /dev/md2 level=raid10 num-devices=4
UUID=ea253255:cb915401:f32794ad:ce0fe396
______________________
menuentry 'Fedora (3.3.1-2.fc16.x86_64)' --class fedora --class gnu-linux
--class gnu --class os {
linux /vmlinuz-3.3.1-2.fc16.x86_64
root=UUID=b935b5db-0051-4f7f-83ac-6a6651fe0988 ro
rd_MD_UUID=b7475879:c95d9a47:c5043c02:0c5ae720
rd_MD_UUID=1d691642:baed26df:1d197496:4fb00ff8
rd_MD_UUID=ea253255:cb915401:f32794ad:ce0fe396 rd_NO_LUKS rd_NO_LVM rd_NO_DM
LANG=de_DE.UTF-8 elevator=cfq
selinux=0 ipv6.disable=1 clocksource=hpet noisapnp noresume nf_conntrack.acct=1
printk.time=0 nmi_watchdog=0
pcie_aspm=force i915.i915_enable_rc6=1 i915.semaphores=1 i915.i915_enable_fbc=1
consoleblank=0 acpi_osi=Linux
SYSFONT=latarcyrheb-sun16 KEYTABLE=de-latin1-nodeadkeys
signature.asc
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