You ran apt upgrade, but /boot was full. Now apt is broken and stuck in an error loop, complaining about a package it can’t configure.

Safety checks

df -h /boot
ls -lh /boot
uname -r
dpkg -l 'linux-image-*' | awk '/^ii/{print $2, $3}'

Be sure to keep the kernel you’re currently running.

Remove unused kernel(s)

I identified the one kernel I’m wasn’t running and then purged it to free up space.

sudo apt purge linux-image-6.16.9+deb14-amd64
sudo reboot

Hopefully avoid in future

I have a Framework 11 with nothing very fancy. If I understand correctly, when MODULES=most is present, images are generated that include drivers for like… basically everything? This is a safety/stability measure, I guess. However, I changed my /etc/initramfs-tools/initramfs.conf:

MODULES=dep

Luckily for me it guessed which modules to load correctly and I believe reduced the image sizes.

Other notes

I also had this weird problem where for some reason wireguard figured it’d depend on RT Linux kernel. I had to hold the rt kernel and manually install the amd64 package.

Original content in gopherspace: gopher://gopher.someodd.zip:70/0/phlog/boot-full.gopher.txt