BUSY: Update operation was locked by another update process.
Having trouble updating Plesk? That sucks. Trying to kill the autoinstaller but it just won’t help?

There’s a psa-installer.lock file in /tmp/ which indicates Plesk a running installer. Be sure no installer is running and then delete this little bugger.


  • Thanks for this tip Timo. I had spent an unhappy hour or two trying to follow the KN on the Odin website but they only offer the option for kill -9 of autoinstaller processes (which there were none).