This is a new one
logged in as root
run /proc/mdstat
get Permission denied error
root@omv2:~# /proc/mdstat
bash: /proc/mdstat: Permission denied
root@omv2:~#
So I ran:
root@omv2:~# cat /proc/mdstat
Personalities : [raid6] [raid5] [raid4] [linear] [multipath] [raid0] [raid1] [raid10]
md127 : active (auto-read-only) raid5 sdc[1] sde[3] sdb[0] sdd[2]
8790405120 blocks super 1.2 level 5, 512k chunk, algorithm 2 [4/4] [UUUU]
unused devices: <none>
root@omv2:~#
Then ran:
root@omv2:~# mdadm --readwrite /dev/md127
root@omv2:~# cat /proc/mdstat
Personalities : [raid6] [raid5] [raid4] [linear] [multipath] [raid0] [raid1] [raid10]
md127 : active raid5 sdc[1] sde[3] sdb[0] sdd[2]
8790405120 blocks super 1.2 level 5, 512k chunk, algorithm 2 [4/4] [UUUU]
unused devices: <none>
root@omv2:~#
Shows active raid5 now
rebooted
file system still shows as:
referenced = yes
mounted = no
Status = missing
this is turning into a real puzzle
any more advice?
thanks for all your help.