bsdcpio 2.8.3-1build1 (powerpc binary) in ubuntu maverick

 This package provides an interface similar to cpio(1), but using
 libarchive as the backend for the archiving and extraction of data.
 It can read CPIO, tar, pax, zip, jar, ar, and ISO9660 images and provides
 similar features to the bsdtar package. Features include:
 .
  * Automatic format detection. Libarchive automatically detects the
    compression (none/gzip/bzip2) and format (old tar, ustar, gnutar,
    pax, cpio, iso9660, zip) when reading archives. It does this for
    any data source.
 .
  * Pax Interchange Format Support. This is a POSIX/SUSv3 extension to
    the old "ustar" tar format that adds arbitrary extended attributes
    to each entry. Does everything that GNU tar format does, only
    better.
 .
  * Handles file flags, ACLs, arbitrary pathnames, etc. Pax interchange
    format supports key/value attributes using an easily-extensible
    technique. Arbitrary pathnames, group names, user names, file sizes
    are part of the POSIX standard; libarchive extends this with
    support for file flags, ACLs, and arbitrary device numbers.
 .
  * GNU tar support. Libarchive reads most GNU tar archives. If there
    is demand, this can be improved further.