Rebuil a machine to different hardware or recovery of backup to different hardware.

   Assuming you're booted from the CD, and your "/" is mounted on
"/a", try:

    "cd /a"
    "mv dev <yymmdd>_dev"
    "mv devices <yymmdd_devices"
    "mkdir dev devices"
    "chmod 755 dev devices"
    "chown root:sys dev devices"
    "cd /dev; find . -depth -print | cpio -pdm /a/dev"
    "cd /devices; find . -depth -print | cpio -pdm /a/devices"
    "cd /a/etc"
    "mv path_to_inst <yymmdd_path_to_inst"
    "cp -p /etc/path_to_inst /a/etc/path_to_inst"

	touch /a/etc/reconfigure for good measure.
    Then reboot.

devfsadm will also works..