Tag: root password; forget root password
Single-user mode to change the root password
Press any key ( when you see this interface, any key on the keyboard to enter the GNU Grub mode )
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Edit CentOS
650) this.width=650; "src=" http://i.imgur.com/A5XwN6B.jpg "style=" margin-top:0px;margin-right:0px;margin-bottom:0 px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-top-width:0px; border-right-width:0px;border-bottom-width:0px;border-left-width:0px; "alt=" a5xwn6b.jpg "/>
Edit Kernel
650) this.width=650; "src=" http://i.imgur.com/QtdnWDZ.jpg "style=" margin-top:0px;margin-right:0px;margin-bottom:0 px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-top-width:0px; border-right-width:0px;border-bottom-width:0px;border-left-width:0px; "alt=" qtdnwdz.jpg "/>
setting up from single-user mode
650) this.width=650; "src=" http://i.imgur.com/mvxSW7c.jpg "style=" margin-top:0px;margin-right:0px;margin-bottom:0 px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-top-width:0px; border-right-width:0px;border-bottom-width:0px;border-left-width:0px; "alt=" mvxsw7c.jpg "/>
Boot
650) this.width=650; "src=" http://i.imgur.com/clKXZOe.jpg "style=" margin-top:0px;margin-right:0px;margin-bottom:0 px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-top-width:0px; border-right-width:0px;border-bottom-width:0px;border-left-width:0px; "alt=" clkxzoe.jpg "/>
to modify a password in single-user mode
650) this.width=650; "src=" http://i.imgur.com/5ErvnwO.jpg "style=" margin-top:0px;margin-right:0px;margin-bottom:0 px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-top-width:0px; border-right-width:0px;border-bottom-width:0px;border-left-width:0px; "alt=" 5ervnwo.jpg "/>
Single-user mode to change the root password