# Issue starting PBS **URL:** \ **Category:** Users/Site Administrators\ **Created:** [January 6, 2017, 12:04am UTC](https://community.openpbs.org/t/issue-starting-pbs/403 "2017-01-06T00:04:08Z")\ **Posts on this page:** 1\ **Showing post:** 17
**Author:** ![mkaro](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.openpbs.org/mkaro/32/85_2.png) [@mkaro](https://community.openpbs.org/u/mkaro)\ **Post date:** [July 29, 2017, 3:29pm UTC](https://community.openpbs.org/t/issue-starting-pbs/403/17 "2017-07-29T15:29:32Z")
It appears the “postgres pbs\_datastore” process is missing. The most common reason I’m aware of is permission problems within the PBS\_HOME/datastore directory itself. There may be files or directories with incorrect ownership and/or permissions. Before you try anything I suggest, please backup your PBS\_HOME directory. Shut down PBS Pro and then archive PBS\_HOME so you can restore it later if necessary. A couple things to try… With PBS stopped, run the following command as root: chown -R postgres:root /var/spool/pbs/datastore Then try starting PBS and see if things work as expected. If that fails, stop PBS and remove the datastore directory completely. PBS will attempt to recreate it when restarted. The worst case scenario would be to stop PBS and remove /var/spool/pbs completely. Then restart PBS and let the scripts recreate PBS\_HOME in its entirety. If that doesn’t work, I suspect you have some filesystem issue that is preventing PBS from working properly. --- _[View the full topic](https://community.openpbs.org/t/issue-starting-pbs/403)._