On Thu, Jun 24, 2021 at 06:43:15PM +0200, Markus wrote:
grub-efi-amd64:
Installed: (none)
Candidate: 2.02+dfsg1-20+deb10u3
Version table:
2.02+dfsg1-20+deb10u4 500
500 http://ftp.de.debian.org/debian buster/main amd64 Packages
500 http://security.debian.org buster/updates/main amd64 Packages
2.02+dfsg1-20+deb10u3 30000
100 /var/lib/dpkg/status
Everything else looks good, except for this "30000" section. You've got
a pin somewhere, for an older version of grub-efi-amd64, and it's
throwing everything out of whack.