Michael Tokarev wrote:
Neil Brown wrote:
On Sunday October 29, peb-misc@xxxxxxxxxx wrote:
Hi,
I have 2 arrays whose numbers get inverted, creating havoc, when booting
under different kernels.
I have md0 (raid1) made up of ide drives and md1 (raid5) made up of five
sata drives, when booting with my current ubuntu 2.6.12-9 kernel. When I
try to boot a more recent kernel (2.6.15-26 or 2.6.15-27) the
order is inversed and my sata raid5 array shows up as md0.
My arrays are part of evms volumes that just stop working if the
numbering is inverted.
any clues ?
Your arrays are being started the wrong way.
Do you have an mdadm.conf that lists the arrays? Can you show us what
it looked like?
If not, do you know how the arrays are started in ubuntu?
My guess is that it's using mdrun shell script - the same as on Debian.
It's a long story, the thing is quite ugly and messy and does messy things
too, but they says it's compatibility stuff and continue shipping it.
For the OP, the solution is to *create* mdadm.conf file - in that case
mdrun should hopefully NOT run.
I'd suggest you are probably correct. By default on Ubuntu 6.06
brad@bklaptop2:~$ cat /etc/init.d/mdadm-raid
#!/bin/sh
#
# Start any arrays which are described in /etc/mdadm/mdadm.conf and which are
# not running already.
#
# Copyright (c) 2001-2004 Mario Jou/3en <joussen@xxxxxxxxxx>
# Distributable under the terms of the GNU GPL version 2.
MDADM=/sbin/mdadm
MDRUN=/sbin/mdrun
CONFIG=/etc/mdadm/mdadm.conf
DEBIANCONFIG=/etc/default/mdadm
. /lib/lsb/init-functions
test -x $MDADM || exit 0
AUTOSTART=true
test -f $DEBIANCONFIG && . $DEBIANCONFIG
case "$1" in
start)
if [ "x$AUTOSTART" = "xtrue" ] ; then
if [ ! -f /proc/mdstat ] && [ -x /sbin/modprobe ] ; then
/sbin/modprobe -k md > /dev/null 2>&1
fi
test -f /proc/mdstat || exit 0
log_begin_msg "Starting RAID devices..."
if [ -f $CONFIG ] && [ -x $MDADM ] ; then
$MDADM -A -s
elif [ -x $MDRUN ] ; then
$MDRUN
fi
log_end_msg $?
fi
;;
stop|restart|reload|force-reload)
;;
*)
log_success_msg "Usage: $0 {start|stop|restart|reload|force-reload}"
exit 1
;;
esac
exit 0
Brad
--
"Human beings, who are almost unique in having the ability
to learn from the experience of others, are also remarkable
for their apparent disinclination to do so." -- Douglas Adams
-
To unsubscribe from this list: send the line "unsubscribe linux-raid" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
