[TriLUG] Problem with RAID after debian testing upgrade

T. Bryan tbryan at python.net
Sun Nov 26 19:11:41 EST 2006


I've been upgrading a debian testing machine pretty regularly.  This machine 
has a RAID1 across /dev/hde1 and /dev/hdg1.  Over this holiday weekend, I 
rebooted the machine for the first time in a few weeks.  Now, I seem to have 
lost my RAID devices.  

Looking at the machine after it boot up and complains about not being able to 
find my LVM logical devices that live on the /dev/md0 RAID device, I see that 
I have /dev/hde and /dev/hdg, but I don't have /dev/hde1 or /dev/hdg1 on my 
machine anymore.  Should I just recreate those by hand?  I think that they're 
supposed to be there, right?  How could a simple apt-get update; apt-get 
upgrade lose some of my devices?  

Some additional info: since my root device is not on the RAID, I generally 
don't worry about getting the RAID devices up during initial boot.  That is
dpkg-reconfigure -plow mdadm
Set the devices to bring up to none.
Then have it bring up all other RAID devices at the end of the init sequence.

I'm hoping to figure this out soon since /home lives on the RAID.  

Thanks,
---Tom




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