Originally Posted by till
Looks as if the server configuration ini in the database on the second server is missing or it has a syntax error so that it can not be read anymore. Please take a look in the database on the second server, go to the table server. There should be one record in that table and what is in the config field of this record?
Sorry Till, but I don't understand where you're saying to look. Do you mean use phpmyadmin to look for a table in the dbispconfig? I couldn't find anything like you were describing.
I also noticed that after running ispconfig_update.sh there didn't seem to be a /tmp/ispconfig3_install/install/ directory. I tried upgrading it by uploading the tar downloaded from the site, unpacking it into /tmp/, cd to the install file, then running php update.php but that ended up failing at the same place.
UPDATE: It seems that my problem was replicated databases. I have master/master replication going, so I tried shutting off the slaves on both servers, then the install went right through. After I restarted the slaves, and it had no errors.