Greetings,
Due an emergency (failing disk) we moved our whole server from a CentOS 5 machine to a CentOS 6.
In the process, newer software versions were installed by default; relevant to Drupal CentOS 5 had PHP 5.1; CentOS 6 now has PHP 5.3 CentOS 5 had Postgresql 8.1.x; CentOS 6 has Postgresql 8.4.x
The way I restored the Postgresql databases was through pg_dumpall to a huge text file, and then psql postgres < AllPostgresDatabases.out on the PG 8.4 system.
Our Drupal installations were local from tarballs, not from RPMs. In most cases they are Drupal 6.22
The sites all show Drupal's blue page - site offline.
The Apache logs show that the page returns a 503 Error.
I'm in the process of trying to debug and in a bit of a rush. Usually, I try and research this in detail before posting.
Much thanks for any advice on returning these sites to status quo.
Max Pyziur pyz@brama.com