8.04 -> 10.04 /dev/md0 not created in intiramfs

Christopher Chan christopher.chan at bradbury.edu.hk
Thu Jul 8 07:34:18 UTC 2010

On Thursday, July 08, 2010 02:33 PM, Robert Steinmetz wrote:
> I'm aware of that. Does this configuration  mean that mdadm is running
> before lvm and if so how do I correct it?

Oh, sorry, read your post wrong. I would have thought the lower number 
gets priority but then i do not know udev all that well. Actually, I 
doubt that udev is the problem given that it has been running from at 
least Hardy to Lucid...

Does your initrd image at all package the md and lvm modules?

> On 7/8/2010 12:01 AM, Christopher Chan wrote:
>>> In /lib/udev/rules I found;
>>>      85_mdadm.rules
>>>      85_lmv2.rules
>>> If I were guessing (and I am) I would expect 85_lvm2 to be run before
>>> 85_mdadm, which is the wrong order. I also found 56_lvm.rules which
>>> doesn't seem to do anything.
>> mdadm should run before lvm. lvm can run on md devices and so lvm can
>> have a dependency on mdadm
> --
> *Robert Steinmetz, AIA*
> Principal
> *Steinmetz & Associates*

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