Downgrading to Older Versions

You can roll back updates by undoing the respective yum transactions with the yum history undo command.

If systemd is to be downgraded as part of the rollback, perform the procedure as follows:

1. Back up the systemd configuration file:

   1	# mv /etc/yum/protected.d/systemd.conf /etc/yum/protected.d/systemd.conf.backup

2. Undo the required yum transaction:

   1	# yum history undo <transaction_ID>

3. Restore the systemd configuration file from backup:

   1	# mv /etc/yum/protected.d/systemd.conf.backup /etc/yum/protected.d/systemd.conf