How to recover my data from a bricked 4tb my cloud hard drive?

My Cloud OS 3 Personal & Network Attached Storage My Cloud
1

I removed the hard drive from the casing. I have connected to the SATA connectors and able to see the drive on my ubuntu. But I am unable to mount the driver to recover my files. I can see the partitions. I tried the fuseext2 mentioned in some of the blogs without luck. It says failed to probe.

Please help.

Thanks,
Shogun

2

Trying to mount the raid is cumbersome. Since you already open it up, you can flash back the rootfs to both 2GB partition to unbrick it or connect it back to the board and use Fox_exe’s TFTP unbrick method.

3

When I direct attach the 4tb hard drive to my linux desktop. I see the following from parted.

Model: ATA WDC WD40EFRX-68W (scsi)
Disk /dev/sdb: 4001GB
Sector size (logical/physical): 512B/4096B
Partition Table: gpt

Number Start End Size File system Name Flags
3 15.7MB 528MB 513MB primary msftdata
1 528MB 2576MB 2048MB ext3 primary raid
2 2576MB 4624MB 2048MB ext3 primary raid
5 4624MB 4724MB 99.6MB primary msftdata
6 4724MB 4824MB 101MB primary msftdata
7 4824MB 4826MB 1049kB primary msftdata
8 4826MB 4828MB 2097kB primary msftdata

4 4828MB 4001GB 3996GB primary msftdata

I see that partition number does not have a type of file system. Does it mean partition 4 is corrupted ? In earlier posting I saw that partition 4 has to be ext4. How can I recover this partition ? Its unfortunate that WD did not think making the recovery mechanism simpler.