Oh dear, my Ubuntu laptops root filesystem went readonly.... Rebooting lands me in busybox initramfs....

Turns out my root filesystem was so fudged it needed a manual fsck. Just saying yes to everything it wanted to do seems to have got things booting again at least

@eviljonny ext4? It's still ext2 way down underneath and that's not good. Haven't set up a new machine in a bit, but until a couple of years ago I was always using XFS roots which pretty much never have this happen.
@relistan Yeah, ext4. For quite a few years I always used XFS (and it was the filesystem of choice many moons ago when I worked at Zen Internet (prior to that it was ReiserFS, those getting corrupt happened often enough we just called it Reiser Jam and presumed it wasn't worth a filesystem repair)). These days I mainly just let the OS do its default (if I had to reinstall it\s not the end of the world, everything important is off device and I have ansible setup scripts to get it working again)