# apt-cache policy

Package Files:
 100 /var/lib/dpkg/status
     release a=now
 500 http://security.debian.org testing/updates/main Packages
     release o=Debian,a=testing,l=Debian-Security,c=updates/main
     origin security.debian.org
 500 http://debian.oregonstate.edu testing/main Packages
     release o=Debian,a=testing,l=Debian,c=main
     origin debian.oregonstate.edu
 500 http://www.las.ic.unicamp.br testing/main Packages
     release o=Debian,a=testing,l=Debian,c=main
     origin www.las.ic.unicamp.br
 500 http://ftp.br.debian.org testing/main Packages
     release o=Debian,a=testing,l=Debian,c=main
     origin ftp.br.debian.org
Pinned Packages:



# apt-cache policy xlibmesa-glu
xlibmesa-glu:
  Installed: 4.3.0.dfsg.1-14sarge1
  Candidate: 1:7.0.22
  Version Table:
     1:7.0.22 0
        500 http://ftp.br.debian.org testing/main Packages
        500 http://www.las.ic.unicamp.br testing/main Packages
        500 http://debian.oregonstate.edu testing/main Packages
 *** 4.3.0.dfsg.1-14sarge1 0
        100 /var/lib/dpkg/status