Okay, it was my mistake... this topic can be declared as duplicate. I'll post my test results to other topic... :)
-- Ubuntu won't install on Core 2 Duo at all. (nor 6.06/6.10) ) https://launchpad.net/bugs/68612 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs