如何從AS3升級到AS4 各位高手：     我的服務器裝的是AS3,如何升級成為AS4呀，用什麼方法比較安全呀，各位指導一下，是用APT還是YUM？怎麼升級呢？ 如何從AS3升級到AS4 it's hard to upgrade EL3 to EL4. reinstall is a clean way to do that and be recommended by redhat officially. check the EL4's installation guide and release notes for details. [ 關閉窗口 ]