Unzip should be considered

Sure, if that helps. Fix committed.

:-Dustin

This bug was fixed in the package eucalyptus - 1.6~bzr854-0ubuntu6

---------------
eucalyptus (1.6~bzr854-0ubuntu6) karmic; urgency=low

  [ Thierry Carrez ]
  * Apply upstream rev867 and rev876 diffs to fix SC registration through
    Web UI, LP: #436313
  * tools/eucalyptus-java-ws.in: Reapply fix on boot messages that was lost
    on a merge, LP: #435766

  [ Dustin Kirkland ]
  * debian/80-eucalyptus-url: add an update-motd script that
    displays the administration URL in the MOTD at position 80, LP: #436199
  * debian/eucalyptus-nc.preinst: echo a warning message if a system
    installing the -nc does not have VT, LP: #426830
  * debian/rules: don't fail package installation due to init script
    failures, LP: #430075, #418473
  * tools/euca_conf.in: vastly improve the output of
    'euca_conf --register-nodes', which was missing some pertinent
    information, LP: #424457
  * clc/modules/www/src/main/java/edu/ucsb/eucalyptus/admin/server/ServletUtils.java:
    if we're going to use the local host to send email, use 'localhost' as
    the hostname, rather than the externally resolvable hostname which
    breaks in the default ubuntu postfix configuration, LP: #412676
  * debian/control:
    - have eucalyptus-common depend on openssh-server and openssh-client,
      as these should really be installed on most any Eucalyptus system,
      LP: #411656
    - have eucalyptus-common recommend unzip, since Eucalyptus uses zip
      files for credentials, which may be needed on various systems,
      LP: #436876
    - recommend libpam that provides pam_motd, LP: #436199
    - conflict with apache2-mpm-itk, LP: #338344
  * debian/eucalyptus-common.postinst: configure VNET_DHCPDAEMON and
    VNET_DHCPUSER appropriately for default Ubuntu on initial install,
    LP: #364938

  [ Colin Watson ]
  * debian/control:
    - Make eucalyptus-nc explicitly depend on apache2-mpm-worker |
      apache2-mpm-prefork, since the NC requires that Apache be configured
      to only start a single child (LP: #338344).

 -- Dustin Kirkland <email address hidden> Fri, 25 Sep 2009 18:01:29 -0700

I don't think it's really needed. You download credentials to the client system (the one you run euca2ools on) so it's on the client that you need unzip. You don't really need it on the cluster or the node controller... For the same reason you don't recommend euca2ools you shouldn't recommend unzip.

Having euca2ools suggest unzip would probably be good though.