4.0 wouldn't boot after update

Jon Solworth

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Apr 25, 2018, 11:13:23 AM4/25/18

to qubes-users

I updated qubes 4.0 and there were some errors (about transactions on--I believe--some crypto stuff). Afterwards, I couldn't boot getting the message

kernel panic -- not syncing: VFS unable to mount fs on unknown block (0,0)

the problem is that my backup is a bit old, and if possible I would like to retrieve the data. So:

1. Is there a way to restore the kernel to a working one? or alternatively
2. If I build qubes on an external disk, is there a way to copy over the
files from my SSD?
3. Any other suggestions.

(I tried to use troubleshooting with a 4.0 usb stick, but couldn't figure out how to recover).

thanks
Jon

john

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Apr 25, 2018, 3:43:46 PM4/25/18

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Just curious was this a legacy or efi installation ? and in your
Bios/EFI boot settings do you see two choices for the USB installation
media?

What happened when you tried 'troubleshooting' USB media exactly ?

Jon Solworth

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Apr 25, 2018, 3:48:49 PM4/25/18

to qubes-users

legacy.

Didn't get to far with troubleshooting. I got a shell, was able to decrypt the volume, but not sure wha to do next.

awokd

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Apr 26, 2018, 1:09:50 AM4/26/18

to Jon Solworth, qubes-users

On Wed, April 25, 2018 7:48 pm, Jon Solworth wrote:

>
> Didn't get to far with troubleshooting. I got a shell, was able to
> decrypt the volume, but not sure wha to do next.

From that point, you should be able to mount the LVM private partition for
the VMs you want to recover and copy out the data.

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