单选题In order to upgrade from AIX Version 4.3 to AIX Version 5.2， which of the following actions should be performed？（）A Run smit update_allB Run smit install_allC Boot from the installation mediaD Run update_all from the mounted CD
题目
单选题
In order to upgrade from AIX Version 4.3 to AIX Version 5.2， which of the following actions should be performed？（）
A
Run smit update_all
B
Run smit install_all
C
Boot from the installation media
D
Run update_all from the mounted CD