Hi,
The reason is the file type on the CD is not of UNIX.
When you user pfs_mount with the option -x unix it will translate to file type UNIX.
To user pfs_mount, you need the pfs_mountd and pfs running.
The do the following
# nohup /usr/sbin/pfs_mounts &
# nohup /usr/sbin/pfsd &
# /usr/sbin/pfs_mount -x unix /dev/dsk/c5t2d0 /cdrom
This will work.
Never give up, Keep Trying