Thanks for the replys.
Here is a screenshot of the last output.
Don't reboot on panic (debug=0x100) didn't work the pc still reboots after this message.
I although tried it on a Lenovo X220 I3. Same result.
maybe somebody have an idea what`s going wrong.
I managed to make an Installation flash drive with unibeast.
It boots up okay, after I select "Install high Sierra" it stucks at "End randomseed" and reboots after 30 seconds.
I tried booting with -x -v, no success.
I adjusted the...