I upgraded to 12.04 a while ago and the internet dropped out halfway through so something went wrong, I would have upgraded/downgraded it but I can't boot off a CD/USB and terminal and my update centre had no internet connection. I booted it up thismorning and it got stuck on the Ubuntu with little dots under it page for ages before finally presenting me with a blank screen reading:
Busybox (Ubuntu v1.18.5-1ubuntu4) built in shell (ash) Enter 'help' for a list of built-in commands. (initramfs)
I googled the problem and tried the suggested
mount -t ntfs-3g/dev/sda /root -o force and it came back with the message:
mount: can't read 'etc/fstab': No such file or directory.