casper-new-uuid -V (return code: 2)
Unsupported archive type.
casper-new-uuid --help (return code: 3)
USAGE: /sbin/casper-new-uuid initrd.{l,g}z <path-to-new-initrd> <path-to-new-casper-uuid>
initrd.{l,g}z is the absolute path to the original gzipped or lzmaed initramfs
<path-to-new-initrd> is the destination directory for the new compressed initramfs
<path-to-new-casper-uuid> is the destination directory for the new casper-uuid-TYPE
if either path is absent, they will end up in the current directory
TYPE is determined by an already existing casper-uuid-* or by 'uname -s'