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[Junos] "error: configuration database modified" message seen while entering "configure exclusive" mode



Article ID: KB37357 KB Last Updated: 28 Sep 2021Version: 2.0

This article explains how to resolve the "error: configuration database modified" error that users may encounter when trying to enter the "configure exclusive" mode on devices that run Junos OS.


While entering into exclusive configuration mode by using the "configure exclusive" command, the switch reports the "error: configuration database modified" error and does not allow any configuration.

root@jtac-qfx5100-48t-6q-r2284>configure exclusive
error: configuration database modified


There are uncommitted changes that lead to this error but while checking for users with the show system users command, no other users are shown.

user1@jtac-qfx5100-48t-6q-r2284> show system users
4:20AM  up 47 days,  4:09, 1 user, load averages: 0.47, 0.62, 0.61
USER     TTY      FROM                              LOGIN@  IDLE WHAT
user1 p0                   4:18AM      - cli

To solve this issue, perform the following steps as the root user:

  1. Log in as the root user.  

root@jtac-qfx5100-48t-6q-r2284> start shell user root                                                                                                                                
  1. From the shell, issue the mgd clr-chg command.

root@jtac-qfx5100-48t-6q-r2284:RE:0% mgd clr-chg                                                                                                                   
  1. Log in as the intended user and perform configuration by using "configure exclusive".

root@jtac-qfx5100-48t-6q-r2284> configure exclusive                                                                                                                 
warning: uncommitted changes will be discarded on exit                                                                                                             
Entering configuration mode                                                                                                                                             
Modification History:

2021-09-28: Modified title to apply to all devices running Junos OS

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