Save Nas HDD (raid)

#Lubuntu Live USB

#Open LXTerminal

sudo su => root

apt update

apt install mdadm

#Find & Check HDD
fdisk -l /dev/sdd
The backup GPT table is corrupt, but the primary appears OK, so that will be used.
Disk /dev/sdd: 2.7 TiB, 3000592981504 bytes, 5860533167 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 92576728-5598-4A62-8599-6D644C9963D3

Device          Start        End    Sectors   Size Type
/dev/sdd1          40    1060289    1060250 517.7M Microsoft basic data
/dev/sdd2     1060296    2120579    1060284 517.7M Microsoft basic data
/dev/sdd3     2120584 5842744109 5840623526   2.7T Microsoft basic data
/dev/sdd4  5842744112 5843804399    1060288 517.7M Microsoft basic data
/dev/sdd5  5843804408 5860511999   16707592     8G Microsoft basic data


#mount HDD
mdadm --examine /dev/sdd3
mdadm -A -R /dev/md/md /dev/sdd3

#Open File Manager PCManFM

see DataVol1 <= copy it

By: https://blog.sleeplessbeastie.eu/2012/05/08/how-to-mount-software-raid1-member-using-mdadm/