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JUNOS Release 10.2 Software Installation and Upgrade Guide
2.
NOTE: You must reboot the device to load the new installation of the JUNOS Software
on the device.
To abort the installation, do not reboot the device; instead, finish the installation and
then issue the
chance to stop the installation.
3.
4.
5.
Installing the Software Package on a Router with Redundant Routing Engines
If the router has two Routing Engines, perform a JUNOS Software installation on each
Routing Engine separately to avoid disrupting network operation. Install the new
JUNOS Software release on the backup Routing Engine while keeping the currently
running software version on the master Routing Engine. After making sure that the
new software version is running correctly on the backup Routing Engine, switch over
to the newly installed Routing Engine to activate the new software. Finally, install
the new software on the new backup Routing Engine.
WARNING: If graceful Routing Engine switchover (GRES) is enabled when you initiate
a software installation, the software does not install properly. Make sure you issue
34
Installing the Software Package on a Router with Redundant Routing Engines
Reboot the router to start the new software using the
command:
user@host> request system reboot
Reboot the system? [yes, no] (no) yes
request system software delete jinstall
The software is loaded when you reboot the system. Installation can take between
5 and 10 minutes. The router then reboots from the boot device on which the
software was just installed. When the reboot is complete, the router displays the
login prompt.
While the software is being upgraded, the Routing Engine on which you are
performing the installation does not route traffic.
Log in and issue the
show version
installed.
(Optional) Add the
package using the
jweb
Before you can add this package, you must first download the software as you
did the installation package. For more information on downloading the
package, see "Downloading Software" on page 30.
The
installation module adds a router management graphical user interface
jweb
that you can use to view and configure your router. For more information about
the
jweb
package, see "Installation Modules" on page 7.
After you have upgraded or downgraded the software and are satisfied that the
new software is successfully running, issue the
to back up the new software.
request system reboot
command. This is your last
command to verify the version of the software
request system software add
request system snapshot
command.
jweb
command
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