[SOLVED] After upgrade to 8.0 still after rebooting "Welcome Grub"

[MG_100]

Hello,

after today's update from PMG 7 to 8 the apt-dist upgrade went through without problems, then rebooted directly and now all hosts are stuck at "Welcome to Grub!" for over 15 minutes.

Is it possible that there are still errors?

 

[MG_100]

I have solved with this article: https://www.reddit.com/r/Proxmox/comments/vy33ho/stuck_at_grub_rescue_after_an_update_and_reboot/