Linux red had set root boot password and menu password
1. Set the configuration file for the boot password in/etc/grup.conf
Root#vim/etc/grup.conf
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1. #开机密码我们在15行之后加入一行 When the boot is skipped 5, 4, 3, 2, 1 when prompted to enter a password.
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2. Menu password is when you turn on the prompt 5, 4, 3, 2, 1 and then you press "E" did not respond, you need to press "P" to enter the password to enter the menu, of course, we know that in the menu mode can change the password, when I set the password, others will not go.
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