> On Sep 8, 2017, at 10:07 AM, Fazzina, Angelo <angelo.fazz...@uconn.edu> wrote: > > I ran > Yum remove postfix > I moved any directories not deleted > I have SELinux disabled in /etc/sysconfig/ > > I ran yum install postfix. > > Still same error, this is crazy.
You're not providing actionable information. Does the "ls -ld" command still report alternative access control for any of the directories on the path from the root to "/var/lib/postfix/master.lock"? If so, master(8) likely still gets "Permission" denied when trying to open the lock file. Either you're wrong and SELinux is not disabled, or as Wietse suggested there could be filesystem corruption, or there are inherited access controls in place down from /var, etc. You can test whether the restriction is still in place by giving the "postfix" user a shell of "/bin/sh", then: # su postfix $ touch /var/lib/postfix/master.lock # Likely fails $ echo $$ > /var/lib/postfix/master.lock # Likely fails Fixing SELinux and broken filesystems is not a subject matter for Postfix experts, best to ask on some forum dedicated for your O/S, or just hunker down and figure it out. Come back to this list when the Postfix user has full rights to the /var/lib/postfix/ directory. -- Viktor.