[CentOS] Number and colon precedes some package names in yum.log

Mon May 10 15:38:51 UTC 2010
Ralph Angenendt <ralph.angenendt at gmail.com>

On Mon, May 10, 2010 at 5:24 PM, Keith Christian
<keith1christian at gmail.com> wrote:
> What is the meaning of the "4:", "2:", "30:" and "1:" prefixes for the
> following entries in yum.log?  Most entries in yum.log don't have
> them.

That's the "Epoch" in the package.

An rpm package is characterised by NEVR, which is

Name
Epoch
Version
Release.

Cheers,

Ralph