I need to provide some background and context before I ask my question.
I was troubleshooting issues with Wireguard & Mullvad on my Debian 4.19.152-1.
When trying to run WIreguard with Mullvad It was throwing the error message:
"> > Blocking internet
> > Failed to set system DNS"
Then, after adding the Debian backports to my sources list, Mullvad & WireGuard worked perfectly.
But the linux 5.8.0-0.bpo.2-amd64 prevented some apps from working.
Such as as Virtual Box.
I fixed this problem on Kernel Version 4.19.152-1 with the following commands:
sudo systemctl edit mullvad-daemon
sudo systemctl restart mullvad-daemon
I can still boot into the original: Debian GNU/LINUX, Linux 4.19.0-amd64 on the GRUB boot loader menu.
However, is it possible to undo the back ports and return to Debian 10's Kernel 4.19.152-1 (2020-10-18) ?
Linux linux 4.19.0-12-amd64 #1 SMP Debian 4.19.152-1 (2020-10-18) x86_64 GNU/Linux
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