Issue command sudo passwd root.

输入命令sudo passwd root。

youdao

You also need to run FSCK as the system administrator, which means Ubuntu users need to create an account from the Ubuntu Live CD by typing sudo passwd root, followed by sudo bash.

你需要以管理员身份运行fsck，这意味着Ubuntu用户需要用Ubuntu Live CD创建一个用户，只需先后键入以下两条命令sudo passwd root, sudo bash。

youdao

The UNIX passwd command is an example; it's a command-line tool with special privileges to change the password (setuid root), but the only thing it can do is change passwords.

UNIX的passwd命令就是一个例子；它是一个具有特定特权的命令行工具，用于修改密码(setuid root)，但是它所能做的只是修改密码。

youdao