Code:
root@bedrock ~ # cat /etc/apt/sources.list
deb http://ftp.de.debian.org/debian/ squeeze main non-free contrib
deb-src http://ftp.de.debian.org/debian/ squeeze main non-free contrib
deb http://security.debian.org/ squeeze/updates main non-free contrib
deb-src http://security.debian.org/ squeeze/updates main non-free contrib
deb http://ftp.de.debian.org/debian/ squeeze-updates main non-free contrib
deb-src http://ftp.de.debian.org/debian/ squeeze-updates main non-free contrib
deb http://packages.dotdeb.org squeeze all
deb-src http://packages.dotdeb.org squeeze all
deb http://packages.dotdeb.org squeeze-php54 all
deb-src http://packages.dotdeb.org squeeze-php54 all
deb http://download.proxmox.com/debian squeeze pve
deb http://backports.debian.org/debian-backports squeeze-backports main
root@bedrock ~ # apt-get update
Hit http://download.proxmox.com squeeze Release.gpg
Ign http://download.proxmox.com/debian/ squeeze/pve Translation-en
Ign http://download.proxmox.com/debian/ squeeze/pve Translation-en_US
Hit http://download.proxmox.com squeeze Release
Ign http://download.proxmox.com squeeze/pve amd64 Packages
Hit http://download.proxmox.com squeeze/pve amd64 Packages
Hit http://ftp.de.debian.org squeeze Release.gpg
Ign http://ftp.de.debian.org/debian/ squeeze/contrib Translation-en
Ign http://ftp.de.debian.org/debian/ squeeze/contrib Translation-en_US
Ign http://ftp.de.debian.org/debian/ squeeze/main Translation-en
Ign http://ftp.de.debian.org/debian/ squeeze/main Translation-en_US
Ign http://ftp.de.debian.org/debian/ squeeze/non-free Translation-en
Ign http://ftp.de.debian.org/debian/ squeeze/non-free Translation-en_US
Hit http://ftp.de.debian.org squeeze-updates Release.gpg
Ign http://ftp.de.debian.org/debian/ squeeze-updates/contrib Translation-en
Ign http://ftp.de.debian.org/debian/ squeeze-updates/contrib Translation-en_US
Ign http://ftp.de.debian.org/debian/ squeeze-updates/main Translation-en
Ign http://ftp.de.debian.org/debian/ squeeze-updates/main Translation-en_US
Ign http://ftp.de.debian.org/debian/ squeeze-updates/non-free Translation-en
Ign http://ftp.de.debian.org/debian/ squeeze-updates/non-free Translation-en_US
Hit http://ftp.de.debian.org squeeze Release
Hit http://ftp.de.debian.org squeeze-updates Release
Hit http://security.debian.org squeeze/updates Release.gpg
Ign http://security.debian.org/ squeeze/updates/contrib Translation-en
Ign http://security.debian.org/ squeeze/updates/contrib Translation-en_US
Ign http://security.debian.org/ squeeze/updates/main Translation-en
Ign http://security.debian.org/ squeeze/updates/main Translation-en_US
Ign http://security.debian.org/ squeeze/updates/non-free Translation-en
Ign http://security.debian.org/ squeeze/updates/non-free Translation-en_US
Hit http://security.debian.org squeeze/updates Release
Hit http://ftp.de.debian.org squeeze/main Sources
Hit http://ftp.de.debian.org squeeze/non-free Sources
Hit http://ftp.de.debian.org squeeze/contrib Sources
Hit http://security.debian.org squeeze/updates/main Sources
Hit http://security.debian.org squeeze/updates/non-free Sources
Hit http://security.debian.org squeeze/updates/contrib Sources
Hit http://security.debian.org squeeze/updates/main amd64 Packages
Hit http://security.debian.org squeeze/updates/non-free amd64 Packages
Hit http://security.debian.org squeeze/updates/contrib amd64 Packages
Hit http://ftp.de.debian.org squeeze/main amd64 Packages
Hit http://ftp.de.debian.org squeeze/non-free amd64 Packages
Hit http://ftp.de.debian.org squeeze/contrib amd64 Packages
Hit http://ftp.de.debian.org squeeze-updates/main Sources/DiffIndex
Hit http://ftp.de.debian.org squeeze-updates/non-free Sources
Hit http://ftp.de.debian.org squeeze-updates/contrib Sources
Hit http://ftp.de.debian.org squeeze-updates/main amd64 Packages/DiffIndex
Hit http://ftp.de.debian.org squeeze-updates/non-free amd64 Packages
Hit http://ftp.de.debian.org squeeze-updates/contrib amd64 Packages
Hit http://ftp.de.debian.org squeeze-updates/main amd64 Packages
Hit http://backports.debian.org squeeze-backports Release.gpg
Ign http://backports.debian.org/debian-backports/ squeeze-backports/main Translation-en
Ign http://backports.debian.org/debian-backports/ squeeze-backports/main Translation-en_US
Hit http://backports.debian.org squeeze-backports Release
Hit http://backports.debian.org squeeze-backports/main amd64 Packages/DiffIndex
Hit http://backports.debian.org squeeze-backports/main amd64 Packages
Hit http://packages.dotdeb.org squeeze Release.gpg
Ign http://packages.dotdeb.org/ squeeze/all Translation-en
Ign http://packages.dotdeb.org/ squeeze/all Translation-en_US
Hit http://packages.dotdeb.org squeeze-php54 Release.gpg
Ign http://packages.dotdeb.org/ squeeze-php54/all Translation-en
Ign http://packages.dotdeb.org/ squeeze-php54/all Translation-en_US
Hit http://packages.dotdeb.org squeeze Release
Hit http://packages.dotdeb.org squeeze-php54 Release
Hit http://packages.dotdeb.org squeeze/all Sources
Hit http://packages.dotdeb.org squeeze/all amd64 Packages
Hit http://packages.dotdeb.org squeeze-php54/all Sources
Hit http://packages.dotdeb.org squeeze-php54/all amd64 Packages
Reading package lists... Done
root@bedrock ~ # apt-get dist-upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
root@bedrock ~ # aptitude full-upgrade
No packages will be installed, upgraded, or removed.
0 packages upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Need to get 0 B of archives. After unpacking 0 B will be used.
root@bedrock ~ # pveversion -v
pve-manager: 2.2-32 (pve-manager/2.2/3089a616)
running kernel: 2.6.32-17-pve
proxmox-ve-2.6.32: 2.2-83
pve-kernel-2.6.32-17-pve: 2.6.32-83
pve-kernel-2.6.32-16-pve: 2.6.32-82
lvm2: 2.02.95-1pve2
clvm: 2.02.95-1pve2
corosync-pve: 1.4.4-1
openais-pve: 1.1.4-2
libqb: 0.10.1-2
redhat-cluster-pve: 3.1.93-2
resource-agents-pve: 3.9.2-3
fence-agents-pve: 3.1.9-1
pve-cluster: 1.0-34
qemu-server: 2.0-72
pve-firmware: 1.0-21
libpve-common-perl: 1.0-41
libpve-access-control: 1.0-25
libpve-storage-perl: 2.0-36
vncterm: 1.0-3
vzctl: 4.0-1pve2
vzprocps: 2.0.11-2
vzquota: 3.1-1
pve-qemu-kvm: 1.3-10
ksm-control-daemon: 1.1-1