apt-get dist-upgrade

[ovis]

Hi,

I installed a mail server acording to the "Virtual Users And Domains With Postfix, Courier And MySQL (+ SMTP-AUTH, Quota, SpamAssassin, ClamAV)"

If i do apt-get dist-upgrade, what happend to the special patched posfix with quota stuff ?

Any one has experience ?

gr Ovis

[till]

I guess you will loose your manually compiled postfix.

[falko]

If i do apt-get dist-upgrade, what happend to the special patched posfix with quota stuff ?

You will lose the quota stuff is Postfix gets updated. To avoid that Postfix will be updated, you can use apt-pinning: http://www.howtoforge.com/forums/showthread.php?t=2317&page=2&highlight=apt-pinning

[ovis]

On the debian irc channel there was a good explanation for this problem.

Hold is a status flag to tell apt not to automatically upgrade a package.
apt will place packages on hold if they require packages that are not
currently installable; you can 'apt-get install pkgname' to explicitly install
the package.

To put a package on hold,

'echo pkgname hold | dpkg --set-selections'

In the case of the Virtual Users And Domains With Postfix, Courier And MySQL (+ SMTP-AUTH, Quota, SpamAssassin, ClamAV) documentation this could be added to upgrade the system in the future.

echo postfix hold | dpkg --set-selections &&
echo postfix-mysql hold | dpkg --set-selections &&
echo postfix-tls hold | dpkg --set-selections

If you want to upgrade postfix, offcource you have to fetch the new source apply the patch and install them.

Thanks for the quick reply till,

Gr Ovis