mdadm: cannot open /dev/md/diskpool

I'm constantly getting the following error when trying to create a notfication service,

Zitat

Failed to execute command 'export LANG=C; omv-mkconf mdadm 2>&1': mdadm: cannot open /dev/md/diskpool: No such file or directory

I'm assuming this has to do with an old software raid I had which died a rather painful death. Not sure on how I should proceed

There's nothing in /dev/md

root@dunder:/# ls -l /dev/md
total 0

Any pointers?

Zitat von ryecoaaron

Is the old array still listed in /etc/mdadm/mdadm.conf?

No, it isn't

root@dunder:~# cat /etc/mdadm/mdadm.conf
# mdadm.conf
#
# Please refer to mdadm.conf(5) for information about this file.
#


# by default, scan all partitions (/proc/partitions) for MD superblocks.
# alternatively, specify devices to scan, using wildcards if desired.
# Note, if no DEVICE line is present, then "DEVICE partitions" is assumed.
# To avoid the auto-assembly of RAID devices a pattern that CAN'T match is
# used if no RAID devices are configured.
DEVICE partitions


# auto-create devices with Debian standard permissions
CREATE owner=root group=disk mode=0660 auto=yes


# automatically tag new arrays as belonging to the local system
HOMEHOST <system>


# definitions of existing MD arrays
root@dunder:~#

Does OMV store the array details somewhere in an database perhaps?

Zitat von ryecoaaron

Nope. Only filesystems. Do you have an n/a filesystem?

Yeah, I did (one drive which was/is damaged was listed as N/A and still in the array)

I fixed the issue by going to File Systems and removed the N/A device. Then in terminal I did

mdadm --stop /dev/md127
mdadm --remove /dev/md127
mdadm --zero-superblock /dev/sd*

Now it works as expected