> that is easy to explain. The kernel is searching for a device with the > special UUID. As I changed the size of the partition with gparted, > the UUID changed. > > Now the kernel says: This UUID is not existent, what is correct > (kernel param: root=UUID=MyUUIDXXXXX) > > I can not get the new UUID (blkid -l /dev/nvme0Pn6) , because no > livesystem does see any /dev/nvme. If I could, I could edit the > kernel param and set the correct UUID by hand. (as you know, in grub > I can edit the boot parms). > > This is the problem.
So the problem is not the UUID, it's the lack of /dev/nvme* [ E.g. using the "right" UUID wouldn't magically let you access that partition. ] Stefan