tried both, not working. I know the above commands are to reinstall the old version. But it works on some rpm, not work on the cpp.3.2.2-5 at the moment. need to wait.
I find sometime rpm not working well.
For example, when I reinstall old gcc,gccc++ rpm successfully last night, the change is not shown right away in the system log->RPM information. When I tried rpm -qa|grep gcc, no result. Then this morning, I tried rpm -qa|grep gcc again, it shows the old version.
Is there a better way to install and check rpm installation?