Messed up My Cloud file system when trying to install OMV

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

Hi folks!
I have successfully installed OMV on multiple WDMC Gen2, but I badly failed at a Gen1 device. That’s what I did:

  • Followed the guide on the famous OMV Google drive to install OMV 2
  • Tried upgrading which did not work
  • Tried installing a clean Debian the same way which obviously does not work.

There were some ugly error messages about /dev/md1 not being found etc (they disappeared so I could not copy paste them here). I do not dare rebooting the device as I am pretty sure it won’t boot. I still can access the device via SSH. How can I re-install a properly booting OS? (I don’t mind if it is WD’s original firmware, clean Debian or OMV), something where I can start from scratch.

Any suggestions? Thanks in advance!

See output of df:

root@MyCloud:~# df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/root       1.9G  1.7G  115M  94% /
tmpfs            23M  196K   23M   1% /run
tmpfs           5.0M     0  5.0M   0% /run/lock
tmpfs            10M     0   10M   0% /dev
tmpfs            46M     0   46M   0% /run/shm
tmpfs           114M   20K  114M   1% /tmp
/dev/sda4       3.6T  3.4T  125G  97% /mnt

See output of parted:
root@MyCloud:~# parted -l
Model: ATA WDC WD40EFRX-68W (scsi)
Disk /dev/sda: 4001GB
Sector size (logical/physical): 512B/4096B
Partition Table: gpt

Number  Start   End     Size    File system  Name     Flags
 3      15.7MB  528MB   513MB                primary
 1      528MB   2576MB  2048MB  ext3         primary  raid
 2      2576MB  4624MB  2048MB  ext3         primary  raid
 5      4624MB  4724MB  99.6MB               primary
 6      4724MB  4824MB  101MB                primary
 7      4824MB  4826MB  1049kB               primary
 8      4826MB  4828MB  2097kB               primary
 4      4828MB  4001GB  3996GB  ext4         primary


Model: Linux Software RAID Array (md)
Disk /dev/md0: 2048MB
Sector size (logical/physical): 512B/4096B
Partition Table: loop

Number  Start  End     Size    File system  Flags
 1      0.00B  2048MB  2048MB  ext3
2

I just realized I had another Gen1 device lying around. I wonder if it would be enough to just dd all partitions except sda4? Any ideas?

3

One can use any of the various unbrick methods to unbrick their My Cloud. User Fox_Exe has one method that more than a few of us have used to fix issues with non booting My Clouds or when replacing the internal single My Cloud hard drive. You cannot use a first gen My Cloud firmware or image on a second gen My Cloud. The second gen uses different hardware and firmware.

FIrst gen: https://drive.google.com/file/d/0B_6OlQ_H0PxVbzZac0plbkZKeGM/view
Second gen: https://drive.google.com/file/d/0B_6OlQ_H0PxVQVhnLVJOdDZISUU/view

4

For the benefit of others that land on this thread and find these dead links, here is a post that contains the current links Wd my cloud unbrick virgin image - #26 by Bennor