On 11/03/2011 10:35 AM, Julian Decker wrote: > 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 superbloc 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 > > >
Could it be that the problem is the missing bootable option ? Also note that you need mdcreateopts="-e 1.0" only for the "/" partition ... other partitions can have superblock 1.2 imho . here is my config which worked for me : disk_config sda bootable:1 primary - 25G - - primary - 10G - - logical - 20G- - - disk_config sdb bootable:1 primary - 25G - - primary - 10G - - logical - 20G- - - disk_config raid raid1 / sda1,sdb1 ext3 rw,errors=remount-ro raid1 swap sda2,sdb2 swap sw raid1 /data_local sda5,sdb5 xfs rw,noatime Best regards , Alex
