Been searching the internet for a while now. I don't know why this has happened, but whenever I try to boot the Raspberry, it asks my for my login credentials in the terminal, no GUI. This never happens. Once I put my credentials in correctly, it gives me:
mktemp: failed to create file via template '/var/lib/update-notifier/tmp.XXXXXXXXXX': Read-only file system
run-parts: /etc/update-motd.d/95-hwe-eol exited with return code 1
/usr/lib/update-notifier/update-motd-fsck-at-reboot: 33: /usr/lib/update-notifier/update-motd-fsck-at-reboot: cannot create /var/lib/update-notifier/fsck-at-reboot: Read-only file system.
cat: /var/lib/update-notifier/fsck-at-reboot: No such file or directory
run-parts: /etc/update-motd.d/98-fsck-at-reboot exited with return code 1
Then a bunch of stuff about warranty which repeats twice for some reason. I do understand that it has something to do with my SD card being read-only. All help is appreciated.