staging:/etc/apt# apt-cache policy base-files libc6 dpkg apt perl; apt-cache policy
base-files:
  Installed: 5lenny11
  Candidate: 6.0squeeze7
  Version table:
     6.0squeeze7 0
        500 http://mirrors.service.networklayer.com/debian/ squeeze/main i386 Packages
 *** 5lenny11 0
        100 /var/lib/dpkg/status
libc6:
  Installed: 2.13-38
  Candidate: 2.13-38
  Version table:
 *** 2.13-38 0
        100 /var/lib/dpkg/status
     2.11.3-4 0
        500 http://mirrors.service.networklayer.com/debian/ squeeze/main i386 Packages
dpkg:
  Installed: 1.16.10
  Candidate: 1.16.10
  Version table:
 *** 1.16.10 0
        100 /var/lib/dpkg/status
     1.15.8.13 0
        500 http://mirrors.service.networklayer.com/debian/ squeeze/main i386 Packages
apt:
  Installed: 0.9.7.8
  Candidate: 0.9.7.8
  Version table:
 *** 0.9.7.8 0
        100 /var/lib/dpkg/status
     0.8.10.3+squeeze1 0
        500 http://mirrors.service.networklayer.com/debian/ squeeze/main i386 Packages
perl:
  Installed: 5.10.0-19lenny5
  Candidate: 5.10.1-17squeeze6
  Version table:
     5.10.1-17squeeze6 0
        500 http://mirrors.service.networklayer.com/debian-security/ squeeze/updates/main i386 Packages
     5.10.1-17squeeze5 0
        500 http://mirrors.service.networklayer.com/debian/ squeeze/main i386 Packages
 *** 5.10.0-19lenny5 0
        100 /var/lib/dpkg/status
Package files:
 100 /var/lib/dpkg/status
     release a=now
 500 http://mirrors.service.networklayer.com/debian-security/ squeeze/updates/non-free i386 Packages
     release v=6.0,o=Debian,a=oldstable,n=squeeze,l=Debian-Security,c=non-free
     origin mirrors.service.networklayer.com
 500 http://mirrors.service.networklayer.com/debian-security/ squeeze/updates/contrib i386 Packages
     release v=6.0,o=Debian,a=oldstable,n=squeeze,l=Debian-Security,c=contrib
     origin mirrors.service.networklayer.com
 500 http://mirrors.service.networklayer.com/debian-security/ squeeze/updates/main i386 Packages
     release v=6.0,o=Debian,a=oldstable,n=squeeze,l=Debian-Security,c=main
     origin mirrors.service.networklayer.com
 500 http://mirrors.service.networklayer.com/debian/ squeeze/non-free i386 Packages
     release v=6.0.7,o=Debian,a=oldstable,n=squeeze,l=Debian,c=non-free
     origin mirrors.service.networklayer.com
 500 http://mirrors.service.networklayer.com/debian/ squeeze/contrib i386 Packages
     release v=6.0.7,o=Debian,a=oldstable,n=squeeze,l=Debian,c=contrib
     origin mirrors.service.networklayer.com
 500 http://mirrors.service.networklayer.com/debian/ squeeze/main i386 Packages
     release v=6.0.7,o=Debian,a=oldstable,n=squeeze,l=Debian,c=main
     origin mirrors.service.networklayer.com
Pinned packages: