Rebooting From The Inactive Partition - Juniper JUNOS OS 10.3 - SOFTWARE Manual

Complete Software Guide for Junos

Rebooting from the Inactive Partition

Problem
Solution
100
®
OS for EX Series Ethernet Switches, Release 10.3
—Use this option to install the software package onto an external media.
external
—Represents the name and location of the Junos OS package either on a
source
server on the network or as a file on the USB flash drive:
Network address of the server and the path on the server; for example,
tftp://192.17.1.28/junos/jinstall-ex-4200-9.4R1.5-domestic-signed.tgz
The Junos OS package on a USB device is commonly stored in the root drive as
the only file; for example,
The boot process proceeds as normal and ends with a login prompt.
An EX Series switch ships with Junos OS loaded on the system disk in partition 1. The first
time you upgrade, the new software package is installed in partition 2. When you finish
the installation and reboot, partition 2 becomes the active partition. Similarly, subsequent
software packages are installed in the inactive partition which becomes the active partition
when you reboot at the end of the installation process.
If you performed an upgrade and rebooted, the system resets the active partition. You
can use this procedure to manually boot from the inactive partition.
NOTE: If you have completed the installation of the software image but have
not yet rebooted, you can issue the
command to return to the original software installation package.
Reboot from the inactive partition:
user@switch> request system reboot partition alternate
file:///jinstall-ex-4200-9.4R1.5-domestic-signed.tgz
request system software rollback
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