摘要：
Today , i want to install ubuntu 12.04 64 bit . I haveinstalled 32 bit before ,it was verysmoothly. I downloadubuntu 12.0464 bit in the same file with 32 bit . I thought the wubi would ask me to choose which one to install . But failed , it installed 32 bit defaultly without asking . Then i inst... 阅读全文
