Firmware KILLED ME!


Before you follow Bill_S advice about recovery services, I’d simply try popping the HDD from the case, installing Paragon’s ExtFS, and see if the data partition is intact. Given what you have said, my guess is still that the OS is corrupt, but the HDD is probably working, and your data probably still intact.

The Paragon software is free on trial. It will cost you nothing to see if your data is accessible via a working ext4 file system.

If Paragon is unable to see the drive, then start to think about paying lots of money for data recovery services, if the data is that important to you. And, thereafter, learn to use backups for important data.

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Yes! that is what I experienced. How can I recover the corrupt OS?

As I said earlier, search the forum for guides to ‘unbricking’ or ‘debricking’.

Can this be my instruction?

What version My Cloud do you have? Is it a single bay/single drive My Cloud? Is it a first gen or second gen version?

If you don’t know what version you have then check the bottom of the My Cloud enclosure (if single bay/single drive) for the P/N number. If it ends in -00 it is a first gen v3.x/v4.x My Cloud, if it ends in -10 then its a second gen v2.x My Cloud.

Once armed with the version either first gen v4.x or second gen v2.x version you can then search the subforum for the correct unbrick process. The unbrick process (and files needed) for the first gen are DIFFERENT than those used for the second gen.

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It ends -00 means v4.x. . And I found this. It’s yours :joy:


I think the E: drive is the OS location. I recently download the firmware (v04.x) and Ubuntu 14.04.5 x64. Can I touch the firmware only without harming the user datas and files? Like installing Windows, using flashdrive or CD, you need to make space for OS and that’s it. Is it same as putting OS in MyCloud?

Not sure its possible, may want to use the forum search feature to see if there are any past discussions on replacing JUST the firmware. Typically people just use the unbrick procedure on the gen 1 units which often results in reformatting/repartitioning of the My Cloud hard drive.

Typically what one would do is use Linux (or a Linux driver in Windows) to copy the data from the Data partition on the My Cloud to another hard drive. Then run one of the various first gen v3.x/v4.x unbrick procedures. Then copy the data back to the My Cloud. Down side is one would need to have enough space on a hard drive to copy the data from the My Cloud.

Up side is you then have a device big enough to use as a backup device when you’ve repaired the MyCloud. Like there should have been in the first place…

Yes that too. :smiley:

Hang on… What are you intending to do with Ubuntu? Not hoping to install it on the MyCloud, I hope? (clue: MyCloud is not a generic Linux box). Or is that what you are running on your PC to access the MyCloud HDD?

Note: Ubuntu on WDMC is possible.
But in our case - ubuntu needed for repartition HDD (Unbrick), because we need mdadm tool for that and ext3/4 FS support.

The E: is not the location of the OS. The two entries marked primary are the OS raid. Your data is on the F: partition.

I’m sure it is possible for Fox_exe… But probably not with a pre-built image? And almost certainly not with a pre-built x64 image…

X64 - no. We have Arm (armhf) cpu arch.
But, if you need it - i can build it. (And already did it for WDMC Mirror 2nd gen)

I dowloaded Ubuntu for PC. I will make a partition in my hdd to have Ubuntu OS then I will do the unbrick procedure.


Can I get your Firmware partition in your MyCloud. If possible, I will copy your firmware then I will make a partition in MyCloud and put it there. Can it still work?

Does it have a firmware files here? I’m planning to copy your firmware and put it on my MyCloud partition.

Just an FYI. Generally you do not need to install Ubuntu to your local computer’s hard drive to unrick a My Cloud. In most cases one can use the boot CD/USB drive to run Ubuntu and have full access to Ubuntu without installing it to a hard drive. See the following link for more information on running Ubuntu from a CD or USB drive:

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I don’t find that software as being free on trial, only a 30 day money back option like many have.