I set up a multi-homed machine that has one wireless NIC on my private WLAN (for remote management purposes) and one wired NIC with a Public IP. I then installed Ubuntu and finally Plesk 12.
Today I discovered a problem where all my sites were showing up with a 404 nginx page. After a lot of...
I had the exact same issue. Updates had installed to a new path (/usr/local/psa) when my original installation was at /opt/psa. In order to circumvent the issue I had to eliminate the false folder.
mv /usr/local/psa /usr/local/psa.old
I then reran the updates...
I have to agree with the last poster - every single time I've done upgrades since Parallels purchased SWSoft I have had to spent at least two days screwing around with fixing all the problems. I've worked with Fedora, Ubuntu, and Debian, and no matter what I always end up sifting through google...
Possible fix
Debian 4.X upgrading Plesk from 9.5.2 to 9.5.4
Encountered the same problem. Discovered two packagemng
/opt/psa/admin/sbin/packagemng
/opt/psa/admin/bin/packagemng
chmod +x wrapper on /opt/psa/admin/sbin/wrapper worked for me.