Try removing the
quiet option from the
kernel= line in your GRUB boot parameters file. (Easiest to do using the "
e" command in boot screen.) That should give you a somewhat more detailed boot listing, and may let you identify the problem line. (You could also take out the
rhgb directive.)
From you description, though, it seems to be coming from the initial ram disk file (the
initrd= line) and that one is somewhat more difficult to debug. See
this note for a "How to" for
initrd problems. The
initrd init script is written in
nash, a restricted subset of
bash, but it's fairly easy to follow.