Arch Problems

:: running early hook [udev]
:: running hook [udev]
:: Triggering uevents...
ERROR: device 'y' not found. Skipping fsck.
ERROR: Unable to find root device 'y'.
You are being dropped to a recovery shell
	Type 'exit' to try and continue booting
sh: can't access tty; job control turned off
[rootfs /]# mkinitcpio -p linux
sh: mkinitcpio: not found
[rootfs /]#HOOKS="base udev block autodetect modconf filesystems keyboard fsck"
[rootfs /]#exit
Trying to continue (this will most likely fail) ...
:: running cleanup hook [udev]
ERROR: Failed to mount the real root device.
Bailing out, you are on your own. Good luck.
sh: can't access tty; job control turned off