CHAPTER 8
Troubleshooting Software Installation
•
Troubleshooting Software Installation on page 99
Troubleshooting Software Installation
•
Recovering from a Failed Software Upgrade on an EX Series Switch on page 99
•
Rebooting from the Inactive Partition on page 100
Recovering from a Failed Software Upgrade on an EX Series Switch
Problem
If Junos OS loads but the CLI is not working for any reason, or if the switch has no software
installed, you can use this recovery installation procedure to install Junos OS.
Solution
If there is already a Junos OS image on the system, you can install the new Junos OS
package in a separate partition and both Junos OS images will remain on the system, or
you can wipe the disk clean before the new installation proceeds.
If there is no Junos OS image on the system, follow the instructions in “Booting an EX
Series Switch Using a Software Package Stored on a USB Flash Drive” on page 88 to get
an image on the system and boot the switch.
To perform a recovery installation:
1.
Power on the switch. The loader script starts.
After the message
Loading /boot/defaults/loader.conf
displays, you are prompted
with:
Hit [Enter] to boot immediately, or space bar for command prompt.
2.
Press the space bar to enter the manual loader. The
loader>
prompt displays.
3.
Enter the following command:
loader> install [– –format] [– –external] source
where:
•
format
—Use this option to wipe the installation media before installing the software
package. If you do not include this option, the system installs the new Junos OS
package in a different partition from that of the most recently installed Junos OS
package.
99
Copyright © 2010, Juniper Networks, Inc.
Summary of Contents for JUNOS OS 10.3 - SOFTWARE
Page 325: ...CHAPTER 17 Operational Mode Commands for System Setup 229 Copyright 2010 Juniper Networks Inc ...
Page 1323: ...CHAPTER 56 Operational Mode Commands for Interfaces 1227 Copyright 2010 Juniper Networks Inc ...
Page 2841: ...CHAPTER 86 Operational Commands for 802 1X 2745 Copyright 2010 Juniper Networks Inc ...
Page 3367: ...CHAPTER 113 Operational Mode Commands for CoS 3271 Copyright 2010 Juniper Networks Inc ...
Page 3435: ...CHAPTER 120 Operational Mode Commands for PoE 3339 Copyright 2010 Juniper Networks Inc ...
Page 3529: ...CHAPTER 126 Operational Mode Commands for MPLS 3433 Copyright 2010 Juniper Networks Inc ...