unknown filesystem type linux_raid_member

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When i try mount a HDD, i get error

root@super ~ # mount /dev/sda1 /mnt
mount: /mnt: unknown filesystem type 'linux_raid_member'.
root@super ~ #

This is because the disk is part of RAID.

Lets check the disks avaialbe with parted -l

parted raid

parted shows /dev/sda1 and /dev/sdb1 as raid with same size. So its assemble raid array with command

mdadm --assemble --run /dev/md3 /dev/sda1 /dev/sdb1

I used /dev/md3 as other device names (/dev/md0, /dev/md1 and /dev/md2) are already in use.

Now you can mount this drive with command

mount /dev/md3 /mnt

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