hey,
quick and dirty.
connect via terminal over ssh
...
became "root" permissions
sudo -i
list disks
fdisk -l
in this example, my source drive
Disk /dev/sdr: 931.5 GiB, ...
Device Boot Start End Sectors Size Id Type
/dev/sdr1 2048 4982527 4980480 2.4G fd Linux raid autodetect
/dev/sdr2 4982528 9176831 4194304 2G fd Linux raid autodetect
/dev/sdr3 9437184 1953320351 1943883168 926.9G fd Linux raid autodetect
look for an free md-slot and change "/dev/mdX"
mdadm -A --verbose --run /dev/mdX /dev/sdr3
message...
mdadm: looking for devices for /dev/md4
mdadm: /dev/sdr3 is identified as a member of /dev/md4, slot 0.
mdadm: added /dev/sdr3 to /dev/md4 as 0
mdadm: /dev/md4 has been started with 1 drive.
... ok, its fine
needed or not?
mdadm -Sf /dev/md4
mdadm -Asf && vgchange -ay
check for correctness
fdisk -l
message...
Disk /dev/md4: 926.9 GiB, ...
Disk /dev/md127: 2 GiB, ...
Disk /dev/md126: 2.4 GiB, ...
... ok
make a dir in useable range for "File Station"
mkdir /volume1/public/tmp
mount "/dev/mdX" with read-only permission
mount /dev/md4 /volume1/public/tmp -o ro
greets Sky