[CentOS] software raid1 syncing

[Bob Hoffman]

> >
> > I have a setup that is raid 1 and put the mirrored drive 
> back in and now it is still showing as degraded saying: 
> raid1: raid set md6 active with 1 out of 2 mirrors with this 
> message on all the raids.i know i am wrong by saying this but 
> i thought putting in the driving and rebooting would start 
> the re syncing itself. what do i have to do to add this back 
> in, i am so confused with this process.
> >
> > centos 4.x

Here is what I did..cent 5.x, but linux commands shoulf work
http://www.bobhoffman.com/wordpress/?page_id=44