/etc/init.d/rcS line 227: /sbin fsck permission
fsck failed. Please repair manually. Please note that root filesystem is
current mounted read-only to remount it read-write
#mount -n -o remount, rw /
Ctrl-D will exit from shell and reboot the system.
Unix will give you permission denied if you ever try to execute a program
but the program is not set executable.
ls -l /sbin/fsck*
and check that they are all executable. As to why any of them may have
been set not executable, I have no idea. If you are still having problems,
send the output of that command back and we can check that it looks ok.