I just found out what I have been looking for a long time now – how to setup KDE to show Cyrillic filenames on ext2/ext3 partitions. As I later found out (in hard way) it has nothing to do with filesystem itself, e.g. ext2/ext3 partitions support UTF-8 – problem was in KDE (e.g. Linux) setup. One has to set locale, e.g. just put these few lines in your profile.d (at my slack it is in /etc/profile.d/), make new script in it and type this:
#!/bin/sh LANG=en_US.UTF-8 LANGUAGE=$LANG LC_ALL=$LANG export LC_ALL LANGUAGE LANG
Although my KDE is in Cyrillic and my locale should be Serbian (sr_CS.UTF-8), I still used en_US (it doesn’t matter for KDE, it uses its own locale setup, this is only for terminal locale), the thing that matter in this script is that you should tell every program that you use UTF-8. Just login again and try to rename any file – it should be working now.