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Knowledge Base

FAQ-how to solve the problem that the root password of SUSE system has forgotten

Publication Date:  2012-12-14  |   Views:  175  |   Downloads:  0  |   Author:  SU1000722738  |   Document ID:  EKB1000021615


Issue Description

In the maintaining process of SIG system, the password of the background server SUSE’s root user has been lost.

Alarm Information


Handling Process

1. Restart the system, after appeared grub guide interface, add “init=/bin/bash” in the options used to start linux, through transmitting “init=/bin/bash” parameters to the kernel to lead to the OS operates the bash before operating login program, appears the command line:
The specific operations are as follows:
In grub guide interface, select “FailSafe”, input “e”, enter the corresponding starting guide menu, select the first line “kernel…..”, in the entered “e” line, enter “blank” and then input “init=/bin/bash” parameter. After added, enter “b” to start.
At this time system will start according to the corresponding menu, and enter a (none)#: clew.
2. Execute command “mount -n / -o remount,rw ”, then can through command “passwd” to modify the password.
3. Input command “passwd root” can reset the password.
4. After modified successfully, use the command “mount -n / -o remount,ro” set the root file to the original state.
5. Restart linux to make the password effective.
Then input the new root password when login the system again.

Root Cause