[CentOS] Kickstart issue: 'dialog' doesn't work in %post, CentOS 5.5

[John Doe]

From: Zhang Huangbin <zhbmaillistonly at gmail.com>
> now display dialog pages, but it can't switch to tty1 via 'chvt 1', and/or 
> display further messages in tty3. Any 
> idea?

It worked for me, but I do not use dialog...
Did you check that dialog does indeed exit?
Did you try to run the script by hand in vt2?

JD