I fired up my old Ubuntu system and it asked if I wanted to update. I did. When booting up it gave me the red screen and then just the below screen. The computer is a Dell Inspiron 530 that also has Windows Vista as an alternative boot.
mount: mounting /dev/loop0 on /root failed: Invalid argument mount: mounting /dev on /root/dev failed: No such file or directory mount: mounting /sys on /root/sys failed: No such file or directory mount: mounting /proc on /root/proc failed: No such file or directory Target filesystem doesn't have requested /sbin/init. No init found. Try passing init= bootarg. Busybox v1.21.1 (Ubuntu 1:1.21.0-1ubuntu1) built-in shell(ash) Enter 'help' for a list of built-in commands. (initramfs) _