If Ukrainian language selected, installer does not try to use koi8-u fonts.
It's really impossible to understand anything if latin1 font is used. In
beta1, it was just enough to replace cyrillic fonts directory with fonts
from XFree86-KOI8-R-75dpi package to make Ukrainian working. Now fonts are
available in /usr/share/fonts/KOI8-R/75dpi and there are aliases for
koi8-u, but they are not used. I was unable to figure out what happened.
*** This bug has been marked as a duplicate of 14675 ***