Question

[CentOS 7 after Power Off] kernel panic - not syncing: VFS: unable to mount root fs on unknown block (0,0)

Posted February 11, 2021 1.5k views
CentOSDigitalOceanDigitalOcean Droplets

Greetings!
After a power off I can’t start my droplet. I didn’t do anything with the kernel but something went wrong.I am writing here because I have to wait long hours for support and so far they have not been able to help. Maybe someone has an idea.

I get this error: https://snipboard.io/9PSctj.jpg

At the suggestion of support, I went through these steps:
https://howtoubuntu.org/how-to-repair-restore-reinstall-grub-2-with-a-ubuntu-live-cd

But there I ran into an other error: https://snipboard.io/vWH3nt.jpg

Would anyone have any suggestions on how I can get my data back the fastest? I would also like to keep the IP address if possible.

edited by KFSys

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6 answers

Hey @jankec90,

I fear that you’ll need to have this checked by support as there is nothing to be done from this side.

Nevertheless, I have asked our amazing support team to check-in on your ticket. They will be able to help you further where we cannot! :)

Hope that helps!
- KFSys.

Hey @KFSys,
Thank you for your reply!
The problem is still exists and the latest kernel does not work, but an older one was able to boot the droplet. Unfortunately, I haven’t been able to fix the bad kernel yet, but at least until then, my services will be available. Currently, I think only a new server will solve this issue.

Hi @jankec90,

If you are able to boot the droplet with an older kernel, that’s great, at least you can back up your data!

As for creating a new droplet, that’s always an option but one I would like to keep as a last resort. Did anyone from DigitalOcean support contact you about the issues with the newest kernel?

Regards,
KFSys

Hello, I have the same issue - kernel panic - unable to mount root fs.

What should I do to recover data from droplet volume?

Is it possible to create another droplet in same region and mount volume from broken droplet to a new one?

Anticipating your kind reply.

Best regards,

Alex

I am having this problem as well after attempting to upgrade Ubuntu.

Any advice or can someone from DO check the status of my ticket?

Thank you!