DEBIAN: Aptitude Upgrade an Plesk packages

[P_heck]

Hello,

I am running my system on Debian Squeeze (Debian 2.6.32-46) and I am using this daily cron to get my system up to date:

#!/bin/sh
date >> /var/log/aptitude-security-updates
aptitude update >> /var/log/aptitude-security-updates
aptitude safe-upgrade -y -t $(lsb_release --short --codename)-security >> /var/log/aptitude-security-updates

Now, it fails with errorlevel 255. Looked at it and started it manually - receive the following msg:

The following packages will be upgraded:
gnupg gpgv libactionmailer-ruby1.8 libactionpack-ruby1.8 libactiverecord-ruby1.8 libactiveresource-ruby1.8 libactivesupport-ruby1.8 libcups2 libcupsimage2 librdbmspp log4cpp-plesk psa-libxml-proxy psa-pear psa-spf2 rails
rails-ruby1.8
The following packages are RECOMMENDED but will NOT be installed:
gnupg-curl
16 packages upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Need to get 5,776 kB of archives. After unpacking 156 kB will be used.
WARNING: untrusted versions of the following packages will be installed!

Untrusted packages could compromise your system's security.
You should only proceed with the installation if you are certain that
this is what you want to do.

log4cpp-plesk psa-pear psa-spf2 psa-libxml-proxy librdbmspp

Do you want to ignore this warning and proceed anyway?
To continue, enter "Yes"; to abort, enter "No":

Question now: Should I update the Plesk related packages or not? Of not, how can I exclude them from the automatic update?

Thanks for your help!

Ciao
Peter

 

[P_heck]

No one here who could help with an answer? Maybe someone from Parallels (Igor?)?

 

[P_heck]

Well - for what reasons ever- the cron job from last night installed the packages. Looks like, that Plesk is running well.