I have six computers running Zorin 15.3 Lite.
I regularly update the installations with "apt -y upgrade" or "apt -y full-upgrade".
It usually works pretty nicely.
Now, there is one of the six, which has been complaing recently (translated from German):
The following packages have been kept back:
To figure out the reason for this I ran "apt install shim shim-signed". This resulted in the following output (translated from German):
The following packages have unfulfilled dependencies:
shim-signed : Depends on: grub-efi-amd64-signed (>= 1.167~) but 1.93.24+zorin3+2.02-2ubuntu8.21 should be installed or
grub-efi-arm64-signed (>= 1.167~) is not installable
Depends on: grub2-common (>= 2.02-2ubuntu8.23)
I'd appreciate some explanation and maybe solution to solve this issue. I have no clue, if the missing update might be critical at some point.
One more issue to mention: I recently discovered that this computer's hard drive was almost at 100% usage. So, I removed some data and uninstalled some packages I had tested on this machine. There might be a connection - I don't know.