Hi and thanks to all, unfortunately the "-e 1.0" option did not solve the problem.
I now tried the following config: --------------------------------------------------------------------------------- disk_config sda primary - 10000 - - primary - 10000 - - disk_config sdb primary - 10000 - - primary - 10000 - - disk_config raid raid1 / sda1,sdb1 ext3 rw mdcreateopts="-e 1.0" raid1 swap sda2,sdb2 swap sw mdcreateopts="-e 1.0" --------------------------------------------------------------------------------- mdadm is now called whith the -e option: ... Executing: yes | mdadm --create -e 1.0 /dev/md0 --level=raid1 --force --run --id-devices=2 /dev/sda1 /dev/sdb1 [ 54.028489] raid1: md0 is not clean -- starting background reconstruction Executing: mdfs.ext3 /dev/md0 Executing: yes | mdadm --create -e 1.0 /dev/md1 --level=raid1 --force --run --id-devices=2 /dev/sda2 /dev/sdb2 [ 54.028489] raid1: md1 is not clean -- starting background reconstruction Executing: mkswap /dev/md1 Executing: fai-vol_id -u /dev/md1 Executing: fai-vol_id -u /dev/md1 Executing: fai-vol_id -u /dev/md0 Executing: fai-vol_id -u /dev/md0 ... Creation of raid devices does work, after FAI installation I was able to mount them, fstab looks good too. I use Debian 6.0.3 and Grub2 1.98 at the moment. regards ----- Original Message ----- From: Michael Tautschnig Sent: 10/31/11 08:09 PM To: linux-fai@uni-koeln.de Subject: Re: RAID Konfiguration FAI Hi all, I hope sticking with English is ok with everyone. Otherwise please just drop a brief note here. > On 10/28/2011 12:46 PM, Julian Decker wrote: > > Hallo, > > > > ich versuche mich derzeit an der Konfiguration eines softRAIDs und > > habe damit leider Schwierigkeiten. > > Zunächst habe ich offensichtlich den Fehler gemacht, die boot > > Partition (Kernel) in das RAID zu legen, was anscheinend nicht möglich > > ist, da der Kernel (und in Folge mdadm) zuerst geladen werden muss um > > überhaupt das softRAID ansprechen zu können - das leuchtet mir ja > > soweit ein. > > Ich habe nun die boot Partition außerhalb des RAIDs angelegt und nun > > kann das System zwar den MBR finden und den Bootloader (Grub) laden, > > allerdings findet dieser die root Partition nicht. > > Braucht Grub für die Verwendung des RAIDs eine spezielle Konfiguration? > > Which version of Grub is that (and which Debian release is it)? [...] > > The problem is superblock version 1.2 > > having s! uperbloc v1.0 solves the problem with grub and raid1 > > I have added metadata=1.0 to the mdadm.conf in the nfsroot > and that solved the problem with bootable raid1 > > cat /srv/fai/nfsroot/live/filesystem.dir/etc/mdadm/mdadm.conf | grep > metadata > CREATE owner=root group=disk mode=0660 auto=yes metadata=1.0 > This thus seems to be a recurrence (which new metadata versions) of http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=570117 Note that fiddling with mdadm.conf shouldn't be necessary - just use mdcreatopts="-e 1.0" in the raid1 ... line of the disk_config file. Best, Michael
