Bug#328698: When root is installed on raid1 md0 starts in degaraded mode
Package: install
Severity: normal
If you make clean install with root on raid1 (mirror) md0 (root) starts in
degraded mode. You can mdadm "/dev/md0 --add /dev/other_disk_partition" to
add other disk to array but it gets kicked out after reboot.
Problem lies in mkinitrd, info from "man mdadm":
"If both mdadm(8) and raidtools2 are installed, the former is preferred. At
the moment, mkinitrd uses the -D option of mdadm(8) to discover the
constituent devices. This means that only devices that are part of the
array at the time that mkinitrd is run will be used later on. This problem
does not exist when raidtools2 is used."
Quick and dirty solution:
mdadm /dev/md0 --add /dev/other_disk_partition
Wait for resync to complete
apt-get --purge remove kernel-image-version
apt-get install kernel-image-version
This creates new initrd.img which has both devices included in raid1.
-- System Information:
Debian Release: 3.1
Architecture: i386 (i686)
Kernel: Linux 2.6.8-2-686
Locale: LANG=en_US, LC_CTYPE=en_US (charmap=ISO-8859-1)
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