Bug 180615 - installer does not recognize raid 1+0
installer does not recognize raid 1+0
Product: Fedora
Classification: Fedora
Component: anaconda (Show other bugs)
x86_64 Linux
medium Severity medium
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Assigned To: Anaconda Maintenance Team
Mike McLean
Depends On:
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Reported: 2006-02-09 09:46 EST by Jan "Yenya" Kasprzak
Modified: 2007-11-30 17:11 EST (History)
0 users

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Doc Type: Bug Fix
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Last Closed: 2006-02-09 10:59:33 EST
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Description Jan "Yenya" Kasprzak 2006-02-09 09:46:44 EST
Description of problem:
I have tried to upgrade a FC3 machine to FC5t2 - the anaconda can correctly
find my root partition (/dev/md0, which is RAID 1 sda1+sdb1), but fails when
trying to mount other filesystems - the FS which fails to mount is /var, which
is in /etc/fstab set up as /dev/md6, which in turn is RAID 0 from two
RAID-1 volumes - /dev/md2 (sde1+sdf1) and /dev/md3 (sdg1+sdh1). Anaconda does
not seem to detect this RAID 1+0 setup correctly.

When I switch to the second VC before selecting upgrade, and assemble the
/dev/md6 by hand with the following commands, the upgrade then continues correctly:

mdadm --assemble /dev/md2 /dev/sde1 /dev/sdf1
mdadm --assemble /dev/md3 /dev/sdg1 /dev/sdh1
mdadm --assemble /dev/md6 /dev/md2 /dev/md3

Additional info:

I am doing a FTP install from diskboot.img on my USB flash disk. The box in
question is dual opteron 248, Tyan S2892 board.
Comment 1 Jeremy Katz 2006-02-09 10:59:33 EST
We don't currently support raid on top of other raids.  You probably want to
look at RAID10

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