Jusko wrote:is the only way to run installer?
It's not, but pretty much the most straightforward one. You could e.g. also replace the setup-binaries with more recent ones, but that's even more "painful".
Good news:
I created an updated installer this weekend (just for the standard ut99, not yet for ut99 goty) which is based on Mojosetup and should work on any new distributions. I'm just waiting for the internal review so I can give it to you to test it.