Bug#438432: cupsys installation fails

[Ben Hay <klm__@hotmail.com>]

Package: cupsys
Version: 1.3.0-2
Severity: normal

Cupsys installation fails with the following message:
/var/lib/dpkg/info/cupsys.postinst: line 102: cd: /usr/lib/cups/backend: No such file or directory
ln: creating hard link `/usr/lib/cups/backend/ipp' to `/usr/lib/cups/backend-available/ipp': No such file or directory
dpkg: error processing cupsys (--configure):
 subprocess post-installation script returned error exit status 1


-- System Information:
Debian Release: lenny/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: i386 (i686)

Kernel: Linux 2.6.21-2-686 (SMP w/2 CPU cores)
Locale: LANG=en_AU.UTF-8, LC_CTYPE=en_AU.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages cupsys depends on:
ii  adduser                 3.104            add and remove users and groups
ii  cupsys-common           1.3.0-2          Common UNIX Printing System(tm) - 
ii  debconf [debconf-2.0]   1.5.14           Debian configuration management sy
ii  gs-esp                  8.15.3.dfsg.1-1  The Ghostscript PostScript interpr
ii  libavahi-compat-libdnss 0.6.21-1         Avahi Apple Bonjour compatibility 
ii  libc6                   2.6.1-1          GNU C Library: Shared libraries
ii  libcomerr2              1.40.2-1         common error description library
ii  libcupsimage2           1.3.0-2          Common UNIX Printing System(tm) - 
ii  libcupsys2              1.3.0-2          Common UNIX Printing System(tm) - 
ii  libdbus-1-3             1.1.1-3          simple interprocess messaging syst
ii  libgnutls13             1.6.3-1          the GNU TLS library - runtime libr
ii  libkrb53                1.6.dfsg.1-6     MIT Kerberos runtime libraries
ii  libldap2                2.1.30-13.4      OpenLDAP libraries
ii  libpam0g                0.79-4           Pluggable Authentication Modules l
ii  libpaper1               1.1.22           library for handling paper charact
ii  libslp1                 1.2.1-7          OpenSLP libraries
ii  lsb-base                3.1-24           Linux Standard Base 3.1 init scrip
ii  perl-modules            5.8.8-7          Core Perl modules
ii  poppler-utils [xpdf-uti 0.5.4-6.1        PDF utilitites (based on libpopple
ii  procps                  1:3.2.7-4        /proc file system utilities
ii  ssl-cert                1.0.14           Simple debconf wrapper for openssl
ii  zlib1g                  1:1.2.3.3.dfsg-5 compression library - runtime

Versions of packages cupsys recommends:
pn  cups-pdf                      <none>     (no description available)
pn  cupsys-client                 <none>     (no description available)
pn  foomatic-filters              <none>     (no description available)
pn  smbclient                     <none>     (no description available)

-- debconf information:
  cupsys/raw-print: true
  cupsys/backend: ipp, lpd, parallel, scsi, serial, socket, usb, snmp