Solved!

[Imran Geriskovan <imrana@doruk.com.tr>]

>> >> "Next: Install Base system" highlighted. No other "Next" s available.

>Happened to me once, but I couldn't track it down.
>I finally booted the rescue disk, mount a partition where base2_0.tgz was,
>and untarred it.
>As I recall, the rescue disk didn't have tar, but star instead, which
>accepts the tar file from stdin.  Could be I had to uncompress first, I'm
>not sure. I did get it to work...
>Peter Galbraith, research scientist          <GalbraithP@dfo-mpo.gc.ca>


Problem is solved.
I make a minimal slackware installation and then untar base2_0.tgz.
It worked for sometime (extracting some files) then stopped complaining like
this: "crc error" !

Its that simple and I used an fresh copy of base2_0.tgz.
Everything is fine now.

However user unfriendliness of dinstall make me spend much time on this simple
issue.

Hope dinstall's error verbositiness will increase in next versions.

Thanks for your cooperation.

Regards,
Imran

P.S: How can I report this?

"This" means this: :)
dinstall does not report any errors which may occur in base system
installation. It just falls back to main menu instead.