fedora boot label error, entering emergency mode.exit the shell to continue.

edit

I tried this and it worked for me:

1st) used a Fedora Live DVD to id the fedora-root partition device with the command:

cat /etc/fstab

(lsblk may also work; or maybe /dev/mapper)

2nd) entered the commands:

fsck <root_lv_path>

(I checked yes for the fixes)

and

mount <root_lv_path> /mnt