Non-fatal POSTIN scriptlet failure

If you get a cryptic error message such as “Non-fatal POSTIN scriptlet failure” when installing new software via yum, it is caused by a bug in the SELinux policy and in my opinion, in the yum/rpm software as well. See the screenshot below: It says it...

httpd is dead but …

Sometimes, you may discover that one or two your critical services such as Apache (httpd) or mysql has stopped responding. You logged into the terminal and issue the service status command: [root@srv10]# service httpd status httpd dead but pid file exists You tried to...

Epel metalink retrieval error

If you haven’t run “yum update” for a long time, and you encountered this error message when running the yum update command: Error: Cannot retrieve metalink for repository: epel. Please verify its path and try again There are a couple of reasons: 1....

Yum (or RPM) error: rpmts_HdrFromFdno

If you tried to run ‘yum update’ and encountered this rather cryptic error message: error: rpmts_HdrFromFdno: Header V3 RSA/SHA1 Signature, key ID c105b9de: BAD Do NOT  try to rebuild your rpm database (do NOT run this command: “rpm...