On Fri, Dec 13, 2019 at 01:29:39PM +0800, d tbsky wrote: > > ok. I found it. the update packages seems to put back to the > original CentOS BaseOS directory. I can not distinguish security > update and bug fixes. but at least we have updates I think. sorry for > the misleading. These can be distinguished by monitoring the centos-announce mailing list; we've never published the necessary security metadata to permit yum being able to identify security updates versus enhancements or bug fixes. John -- Given sufficient thrust, pigs fly just fine. -- Woody Page, Denver sports columnist