1.用的是 zsh
2.能进入系统,因为没设开机密码
3.https://help.ubuntu.com/community/LostPassword 这里 3. Select your image.
Highlight the line that begins kernel and press 'e' to edit
Go to the very end of the line, change the ro to rw and add init=/bin/bash
press enter, then press b to boot your system.看得不是很懂