On Mon, 18 May 2015 14:29:23 -0600 Hans Malissa <hmalissa@xxxxxx> wrote: > I have a software-RAID1 that seems to be working correctly: > > # cat /proc/mdstat > Personalities : [raid1] > md0 : active raid1 sdc1[1] sdb1[0] > 976629568 blocks super 1.2 [2/2] [UU] > > unused devices: <none> > > # mdadm --detail /dev/md0 > /dev/md0: > Version : 1.2 > Creation Time : Sun May 17 15:21:30 2015 > Raid Level : raid1 > Array Size : 976629568 (931.39 GiB 1000.07 GB) > Used Dev Size : 976629568 (931.39 GiB 1000.07 GB) > Raid Devices : 2 > Total Devices : 2 > Persistence : Superblock is persistent > > Update Time : Mon May 18 10:28:36 2015 > State : clean > Active Devices : 2 > Working Devices : 2 > Failed Devices : 0 > Spare Devices : 0 > > Name : eprb21:0 (local to host eprb21) > UUID : 0901fe50:444a29b6:d3caff14:e45ef9cc > Events : 19 > > Number Major Minor RaidDevice State > 0 8 17 0 active sync /dev/sdb1 > 1 8 33 1 active sync /dev/sdc1 > > But, on the other hand, when the system boots, I briefly see the following messages: > > doing fast boot > Creating device nodes with udev > udevd[174]: failed to execute ‘/sbin/mdadm’ ‘/sbin/mdadm --incremental /dev/sdb1 > > udevd[175]: failed to execute ‘/sbin/mdadm’ ‘/sbin/mdadm --incremental /dev/sdc1 --offroot’: No such file or directory > > But otherwise the system appears to run normally. After booting, /dev/md0 seems to be working correctly. > What does it mean, and should I worry about it? What can I do about it? My system is openSUSE 12.2. > Thanks a lot, > I suspect that some udev scripts on the initrd say to run mdadm, but mdadm isn't installed on the initrd. /dev/md0 doesn't hold the root filesystem does it? mdadm is only installed on the initrd if it is needed for root, swap, or suspend-to-disk. If you really wanted to get rid of the messages - which are definitely harmless - you would need to recreate the initrd either without those udev rules files, or with mdadm. Adding the 'md' arg to the "mkinitrd" command might be sufficient, but I don't have a 12.2 install lying around that I can play with. NeilBrown
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