RAID5 system boots only with ... [SOLVED]

osigen · 2006-11-18 19:44:21

RAID5 system boots only with fallback kernel and always the LVM2 has complaints!

Following installation from the latest 0.7.2 tpowa iso (using the 2.6.18 kernel, Nov. 4 2006 iso), I'm having problems getting my LVM volumes being recognised on booting.

Booting with default kernel always hang up with the following:

Kinit : Cannot open root device md0(9,0)
Kinit: Init not found!
Kernel panic - not syncing: Attempted to kill init!

menu.1st has similar entries for default and fallback (sure initrd is different for fallback)
The USELVM="yes" option is set in /etc/rc.conf, and /etc/fstab is OK.
mkinitcpio has RAID hook.

Booting with fallback kernel always reports the following:

The error message on boot following the Activating LVM2 Groups" message is:
"/proc/misc: No entry for device-mapper found. Is device-mapper missing from the kernel?".

Ironically, logging on to the system then allows the partitions to be recognised and mounted by manually running:

modprobe dm-mod
vgchange -ay array
mount -a

or adding dm_mod to rc.conf's modules array.

I don't understand why it works at this stage but not on boot.
I post in Kernel section but I consider it as a bug.

Any help would be appreciated as this has taken up much time and obviously the system is still not properly functional.

chrismortimore · 2006-11-18 20:34:31

Do you have "lvm2" in your mkinitcpio hooks?

osigen · 2006-11-18 21:04:42

chrismortimore wrote:

Do you have "lvm2" in your mkinitcpio hooks?

I have tried mkinitcpio with LVM2 hook and/or without LVM2 :-)
Nothing corrected

chrismortimore · 2006-11-18 21:27:18

Can you post the output of

cat /etc/mkinitcpio.conf | grep -e '^[^#]'

Your /etc/fstab would be handy as well.

osigen · 2006-11-18 22:04:30

cat /etc/mkinitcpio.conf | grep -e '^[^#]'

MODULES=""
BINARIES=""
FILES=""
HOOKS="base udev autodetect ide scsi sata raid filesystems lvm2"

cat /etc/fstab

#
# /etc/fstab: static file system information
#
# <file> <dir> <type> <options> <dump> <pass>
none /dev/pts devpts defaults 0 0
none /dev/shm tmpfs defaults 0 0
/dev/cdrom /mnt/cd iso9660 ro,user,noauto,unhide 0 0
/dev/dvd /mnt/dvd udf ro,user,noauto,unhide 0 0
# /dev/fd0 /mnt/fl vfat user,noauto 0 0
/dev/md0 / reiserfs defaults 0 0
/dev/md1 /boot reiserfs defaults 0 0
/dev/md2 swap swap defaults 0 0
/dev/array/home /home reiserfs defaults 0 0
/dev/array/dbdata /dbdata reiserfs defaults 0 0
/dev/array/video /video reiserfs defaults 0 0
/dev/array/backup /backup reiserfs defaults 0 0
/dev/array/iso /iso reiserfs defaults 0 0

chrismortimore · 2006-11-18 22:14:53

Try HOOKS="base udev autodetect ide scsi sata lvm2 raid filesystems"

osigen · 2006-11-18 22:38:42

NO progress :-(

osigen · 2006-11-19 10:12:59

SOLVED
I add RAID1 and RAID456 in mkinitcpio.conf modules
and the new kernel26 boots!

WiLLiE · 2006-12-29 22:24:04

Thank you!
That solved my problem as well.

The wiki should probably be updated so the next person saves a few hours of trial and error.

Arch Linux

#1 2006-11-18 19:44:21

RAID5 system boots only with ... [SOLVED]

#2 2006-11-18 20:34:31

Re: RAID5 system boots only with ... [SOLVED]

#3 2006-11-18 21:04:42

Re: RAID5 system boots only with ... [SOLVED]

#4 2006-11-18 21:27:18

Re: RAID5 system boots only with ... [SOLVED]

#5 2006-11-18 22:04:30

Re: RAID5 system boots only with ... [SOLVED]

#6 2006-11-18 22:14:53

Re: RAID5 system boots only with ... [SOLVED]

#7 2006-11-18 22:38:42

Re: RAID5 system boots only with ... [SOLVED]

#8 2006-11-19 10:12:59

Re: RAID5 system boots only with ... [SOLVED]

#9 2006-12-29 22:24:04

Re: RAID5 system boots only with ... [SOLVED]

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