Juniper QFX3000-G QFabric, Deployment Manual, Page: 645 / 652

This procedure describes how to perform a recovery installation using an external USB
flash drive that contains Junos OS software.
NOTE: Since the recovery installation process completely overwrites the
entire contents of the Director device, you will need to restore the required
configuration files and initial setup information. The following procedure
assumes you previously saved these backup files with the
request system
software configuration-backup command. Ensure that you have these backup
files available on an external USB flash drive before you perform the following
steps.
1.
Insert the external USB flash drive into the Director device.
2.
Perform one of the following tasks:
• If you have access to the default partition, reboot the Director device by issuing the
request system reboot director-group command.
•
If you do not have access to the default partition, power cycle the Director device.
The following menu appears on the Director device console when the Director device
boots up:
Juniper Networks QFabric Director Install/Recovery Media
- To boot from the local disk, wait 10 seconds or press the Enter key.
- To reinstall the QFabric software on this Director device, type: install
3.
Type install and then press
Enter
to install the software on the Director device.
Once the installation process is complete, the Director device reboots, and the following
menu appears on the Director device console:
Juniper Networks QFabric Director Install/Recovery Media
- To boot from the local disk, wait 10 seconds or press the Enter key.
- To reinstall the QFabric software on this Director device, type: install
4.
Press
Enter
.
The Director device reboots from the local disk on which the software was just installed.
5.
Log in as root on the Director device.
The following menu appears on the Director device console:
Before you can access the QFabric system, you must complete the initial setup
of the Director group by using the steps that follow.
If the initial setup procedure does not complete successfully, log out of the
Director device and then log back in to restart
this setup menu.
Continue?[y/n]
6.
Enter n to bypass the initial setup script and enter the Director device root directory,
where you can mount the external USB flash drive containing the configuration files
and initial setup information.
7.
Issue the ls /mnt command to list the
mount
directory.
619 Copyright © 2015, Juniper Networks, Inc.
Chapter 22: QFabric System Troubleshooting