Hi! I did using Kubuntu 7.10 with Amarok, but now i can't run amarok and some other software. I going to make clean reinstall of OS with formating my hard drive and install Kubuntu 9.10. How can I find and save amarok database to use it in new version?
Thanks!

Please see this link:

http://dev.mysql.com/doc/refman/5.0/en/mysqldump.html

The database should be in $HOME/.kde/share/apps/amarok/ somewhere, I just can't remember where exactly, didn't use AMarok 1.x in years

Can I just save $HOME/.kde/share/apps/amarok/ folder (1.x version) and then copy it into $HOME/.kde/share/apps/ directory in new, Kubuntu 9.10 version (Amarok 2.x)?
P.S. If i can't apps/amarok/ into find my home folder (some time ago, i trush my .kde directory) can i copy it from /root/.kde/share/apps/amarok/???
Thanks

Sorry, I have SQLite database, non MySQL. I found it into /root/.kde/share/apps/amarok/collection.db file. Has Amarok 2.x function to import databases from SQLite-files?

Yes, Amarok 2.x has an import function for the SQLite database: Settings menu -> Configure Amarok -> Collection -> Import Collection button.
I strongly suggest you upgrade to 2.2.1 though, since this version solves a lot of problems from the 2.2 version and it is available in the kubuntu backports PPA as described here: http://www.kubuntu.org/news/amarok-2.2.1

Once upgraded, make sure to do a full collection rescan (in the same menu as above), then restart Amarok to make sure your collection is displayed correctly.