Redid the

ro
umount /dev/hda4 (Please note! The command is umount, not unmount.)
umount /dev/hdc4 (If you have only one hard disk, you may omit the lines that include /dev/hdc4.)
swapon /swapfile
fsck -fay /
fsck -fay /dev/hda4
fsck -fay /dev/hdc4
swapoff /swapfile
sync
reboot
and all is now well!