Am Sonntag, 24. April 2022, 09:47:59 CEST schrieb Schwibinger Michael: Hi Sophie,
maybe you could specify, what is crashing. Is it the kernel itself (kernel panic) ? Or does X not start and you are finished with the prompt? If X is not starting, then you get a problem with the graphics driver. If so, we need to know, what hardware you are using (the command lspci should show you). If the kernel itself is crashing, then we need to know, which kernel it is installalled. All logfiles are below /var/log/ , most interesting files are kern.log, syslog, Xorg.0.log and maybe also daemon.log. If some other thing is crashing during boot, make sure, all packages, which are new, are correctly configured and all dependencies are met. I suppose, you are using debian/stable. Do not interfere with testing or unstable! Besides: The actual debian version is Debian-11, I suppose, when Debian-10 is running you will upgrade to Debian-11. When upgrading fromn Debian-10 to-11, pay attention, that the sources.list have been changed in Debian-11! Please check the manual! Hope this helps. Best regards Hans > Good morning > > What did we do: > Update Debian 9 to 10, > boot: Crash. > > What did we do wrong. > Where does Linux create a logfile to send it to You find the bug. > > What we can do: > We do boot with the recovery mode. > > Regards > Sophie