Plesk Autoupdater Error: Not found source for system...

[xray200]

Hello together,

I've a fundamental problem in Updating/Upgrading my Plesk based vServer running Plesk 8.1 under Debian Sarge 3.1

When I start the Autoupdater in Plesk, I see all the Upgrade Packages available, indeed till Plesk 9.0.
No matter which Package I select, I always get the following error:

"Not found source for system packages (release 3.1, codename sarge) in APT software sources configuration"

My source.list is:

--------------
# See sources.list(5) for more information, especialy
# Remember that you can only use http, ftp or file URIs
# CDROMs are managed through the apt-cdrom tool.
#deb http://http.us.debian.org/debian stable main contrib non-free
#deb http://non-us.debian.org/debian-non-US stable/non-US main contrib non-free
deb http://ftp.freenet.de/debian stable main contrib non-free
deb http://security.debian.org stable/updates main contrib non-free

# Uncomment if you want the apt-get source function to work
#deb-src http://http.us.debian.org/debian stable main contrib non-free
#deb-src http://non-us.debian.org/debian-non-US stable/non-US main contrib non-free

deb http://autoinstall.plesk.com/debian/PSA_8.1.0 sarge all

deb http://autoinstall.plesk.com/debian/PSA_8.1.1 sarge all

deb http://autoinstall.plesk.com/debian/PSA_8.2.1 sarge all

deb http://autoinstall.plesk.com/debian/PSA_8.3.0 sarge all
--------------


How do I upgrade to Pelsk 9? My Hosting Provider doesn't want to help me

 

[duno]

In my case i got Debian/etch installed but accidential configured the apt sources for sarge. Thus leas to "Not found source for system packages" when trying to upgrade plesk.