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How to crack the centos7 boot password, many novices are not very clear about this, in order to help you solve this problem, the following editor will explain for you in detail, people with this need can come to learn, I hope you can gain something.

Rescue mode

Step 1: start the system

In the countdown selection interface, click on the screen and type e

Step 2: enter rd.break

Find the line at the beginning of linux16, end to the end, and enter rd.break

Step 3: ctrl+x

Enter ctrl+x to run

Step 4: remount the root

Now the root is read-only and needs to be mounted as read-write in order to modify it

Input

Mount-o remount,rw / sysroot

Step 5: switch the root

Enter sh, which is your real system.

Chroot / sysroot

Step 6: change the password

Passwd root (enter twice as prompted)

If you see successfully at the end, the modification is successful.

Step 7: exit and restart

Reboot

Step 8: re-enter the system

It can be found that we successfully entered the system using the modified password.

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