Linux Baidu Cloud Compute Entering Single User Mode to Reset Paasword Reports Error-Authentication token lock busy
Updated at:2025-10-20
Problem description
The error message Authentication token lock busy appears when a single user resets the password.

Cause analysis
If the issue is due to the disk being set to read-only, configure it for write permissions.
Handling methods
- Run the following command to reattach the disk.
Shell
1$ mount -o remount,rw /

- Attempt the password reset again.
Shell
1$ passwd

The display of password updated successfully indicates successful password reset. Enter exit to exit single-user mode and return to normal mode.
