yum

Some useful yum commands when installation fails or stopped halfway

yum-complete-transaction
yum-complete-transaction --cleanup-only
yum history redo last

Red Hat Software Collections (RHSCL)

yum install rh-php56
scl enable rh-php56 bash

Selectively enable yum repos

yum update -v --disablerepo=* --enablerepo=cl*

yum commands
Maybe run: yum groups mark install
yum reinstall a package
yum repolist
Yum disable a repository
rpm
yum-config-manager
Download RPM package from yum repository
yum list all available packages in a repo

yum errors

• Fix yum duplicate packages
• yum fix duplicate package error
• rpmdb DB_RUNRECOVERY: Fatal error, run database recovery
• yum [Errno 5] [Errno 2] No such file or directory
• Yum Error Operation too slow
• MySQL 5.7 Community Server GPG keys already installed but they are not correct