hallo, instalation fails at kernel install. have installed linux mint 20, linux open mate 20 x64-ok. ram 1000 MB, intel core 2 2GHz, thinkpad t60
@alfredas Hi and welcome to the Forum 
I’m guessing you mean openSUSE Leap 15? For a start, these Forums are actually the incorrect for the community release, should be over at https://forums.opensuse.org likewise Leap 15 is way out of date, the latest is Leap 15.3. What is the exact CPU? Specs show a 2GHz Core Duo Processor T2500 which is only 32bit (x86), not 64bit (x86_64). The only release that may (not really tested as 32bit arch is legacy )work for 32bit hardware is openSUSE Tumbleweed, plus the system is light on RAM, really need 2000 MB.
raith name is opensuse 15. processor upgradet to intel core 2 duo x64bit 2Ghz. misfortunely leap, now instaled openmate.
CPU t7200 merome
The only release that might (but hasn’t been tested because the 32bit arch is old) run on 32bit hardware is openSUSE Tumbleweed, and the system is low on RAM, requiring at least 2000 MB.