I recently bought a Thinkpad carbon X1 gen9 with Ubuntu preinstalled. The preinstalled Ubuntu have some problems (see this forum) and I was thinking of trying Debian.
As soon as I try to boot from the USB stick that has an image of Debian I am "thrown" into grub and I am unable to do anything else (I guess lack of knowledge).
Now, I thought that I try another distro, and tried to boot up Kubuntu. The result was that Kubuntu never loaded and something like a recovery mode of Ubuntu was triggered, resulting into a fresh Ubuntu installation. (see also this post where the same happened)
I have the feeling that this is related to some configuration from Ubuntu/Lenovo, triggering a recovery mode. As [this post] suggests, completely deleting Ubuntu did the job for him/her, so I was wondering how I can format from an Ubuntu installation.
Thank you
