close

keyboard_arrow_left

Table of Contents Expand all

play_arrow Overview
play_arrow Initial Configuration
- Initial Configuration on NFX150 Devices
- Zero Touch Provisioning on NFX Series Devices
play_arrow Generating YANG Files
- YANG files on NFX150 Devices
play_arrow Configuring Interfaces
play_arrow Configuring USB Pass-Through on NFX Series Devices
- Supporting File Transfer from USB on NFX Series Devices
- Installing Software on NFX Devices Using USB Autoinstallation
play_arrow Configuring Security
play_arrow Configuring VNFs
play_arrow Configuring Mapping of Address and Port with Encapsulation (MAP-E)
- Mapping of Address and Port with Encapsulation on NFX Series Devices
- Configuring MAP-E on NFX Series Devices
play_arrow Configuring High Availability
- Chassis Cluster on NFX150 Devices
- Upgrading or Disabling a Chassis Cluster on NFX150 Devices
play_arrow Configuring Service Chaining
play_arrow Monitoring and Troubleshooting
play_arrow Configuration Statements and Operational Commands
- Junos CLI Reference Overview

list Table of Contents

English

keyboard_arrow_right

Recovering the Root Password for NFX150, NFX250 NextGen, and NFX350 Devices

date_range 24-Nov-23

arrow_backward

arrow_forward

The root password on your Junos OS-enabled device helps to prevent unauthorized users from making changes to your network.

If you forget the root password, you can use the password recovery procedure to reset the root password.

Note:

You need console access to the device to recover the root password.

To recover the root password:

Power off the device by switching off the AC power outlet of the device or, if necessary, by pulling the power cords out of the device’s power supplies.
Turn off the power to the management device, such as a PC or laptop computer, that you want to use to access the CLI.
Plug one end of the Ethernet rollover cable supplied with the device into the RJ-45 to DB-9 serial port adapter supplied with the device.
Plug the RJ-45 to DB-9 serial port adapter into the serial port on the management device.
Connect the other end of the Ethernet rollover cable to the console port on the device.
Turn on the power to the management device.
On the management device, start any asynchronous terminal emulation application (such as Microsoft Windows HyperTerminal), and select the port to be used.
Configure the port settings as follows:
- Bits per second—9600
- Data bits—8
- Parity—None
- Stop bits—1
- Flow control—None
Power on the device by plugging the power cords into the device’s power supply (if necessary), or by turning on the power to the device by switching on the AC power outlet that the device is plugged into.
The terminal emulation screen on your management device displays the device’s boot sequence.
```
i2cset -y 5 0x19 0xff 0x05
i2cset -y 5 0x19 0x2d 0x81
i2cset -y 5 0x19 0x15 0x12
i2cset -y 5 0x18 0xff 0x05
i2cset -y 5 0x18 0x2d 0x82
i2cset -y 5 0x18 0x15 0x12
 * Stopping virtualization library daemon: libvirtd
```
[This message is truncated...]
```
Checking Prerequisites
jdm docker container is in Exit state, required to cleanup, please wait...
9dba6935234b
[  OK  ]
Launching jdm container 'jdm'... 
```

When the prompt shows

Launching jdm container
'jdm'

, press Ctrl+C. The Main Menu appears.

content_copy zoom_out_map
Main Menu

 Boot [J]unos volume
 Boot Junos volume in [S]afe mode
 [R]eboot
 [B]oot menu
 [M]ore options 

From the Main Menu, select 5. [M]ore options. The Options Menu appears.

content_copy zoom_out_map
Options Menu
 
 Recover [J]unos volume
 Recovery mode - [C]LI 
 Check [F]ile system
 Enable [V]erbose boot
 [B]oot prompt
 [M]ain menu

From the Options Menu, select 2. Recovery mode - [C]LI. The device reboots into CLI recovery mode.

content_copy zoom_out_map
Booting Junos in CLI recovery mode ...
 
it will boot in recovery mode and will get MGD cli
 
/packages/sets/active/boot/os-kernel/kernel text=0x444c38 data=0x82348+0x2909a0 syms=[0x8+0x94c50+0x8+0x8165b]
/packages/sets/active/boot/os-kernel/contents.izo size=0x84d200
/packages/sets/active/boot/os-kernel/miibus.ko size 0x40778 at 0x14bc000
loading required module 'netstack'
/packages/sets/active/boot/netstack/netstack.ko size 0x1386b08 at 0x14fd000
loading required module 'crypto'

[This message is truncated...]

content_copy zoom_out_map
Starting MGD
mgd: error: could not open database: /var/run/db/schema.db: No such file or directory
mgd: error: could not open database schema: /var/run/db/schema.db
mgd: error: could not open database schema
mgd: error: database schema is out of date, rebuilding it
mgd: error: could not open database: /var/run/db/juniper.data: No such file or directory
mgd: error: Cannot read configuration: Could not open configuration database
mgd: warning: schema: dbs_remap_daemon_index: could not find daemon name 'isdnd'
 Starting CLI ...

Enter configuration mode in the CLI.
```
root> configure
Entering configuration mode
```

Set the root password.

content_copy zoom_out_map
[edit]
root# set system root-authentication plain-text-password

At the first prompt, enter the new root password:
```
New password: 
```
At the second prompt, reenter the new root password.
```
Retype new password: 
```
After you have finished configuring the password, commit the configuration.
```
[edit]
root# commit
commit complete
```
Exit configuration mode in the CLI.
```
[edit]
root@host# exit
root@host> 
```
Exit operational mode in the CLI.
```
root@host> exit
root@host% 
```
At the shell prompt, type exit to reboot the device.
```
root@host% exit 
```

arrow_backward PREVIOUS Monitor NFX150 Device Health

NEXT arrow_forward Troubleshooting Interfaces on NFX Devices

How to Configure the NFX150

Recovering the Root Password for NFX150, NFX250 NextGen, and NFX350 Devices

Stay in touch

Helped me install or use the product
Accelerated my deployment

Discuss the product with a co-worker
Make a purchase inquiry

How to Configure the NFX150

Recovering the Root Password for NFX150, NFX250 NextGen, and NFX350 Devices

Related Documentation

Stay in touch