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Copyright © 2011, Juniper Networks, Inc.
Upgrade and Downgrade Instructions for Junos OS Release 10.4 for EX Series Switches
(Optional) Copy the software package to the switch. We recommend that you use
3.
FTP to copy the file to the
This step is optional because Junos OS can also be upgraded when the software
image is stored at a remote location.
Install the new package on the switch:
4.
user@switch> request system software add package
Replace
package
with one of the following paths:
For a software package in a local directory on the switch—
For a software package on a remote server:
ftp://hostname/pathname/package.tgz
http://hostname/pathname/package.tgz
where package.tgz is, for example,
Include the optional
member
member of an EX4200 Virtual Chassis:
user@switch> request system software add source member member-id reboot
Other members of the Virtual Chassis are not affected. To install the software on all
members of the Virtual Chassis, do not include the
NOTE: To abort the installation, do not reboot your device; instead, finish
the installation and then issue the
package.tgz command, where package.tgz is, for example,
jinstall-ex-8200-10.2R1.8-domestic-signed.tgz
stop the installation.
Reboot to start the new software:
5.
user@switch> request system reboot
After the reboot has completed, log in and verify that the new version of the software
6.
is properly installed:
user@switch> show version
Upgrade Policy for Junos OS Extended End-Of-Life Releases
An expanded upgrade and downgrade path is now available for the Junos OS Extended
End-of-Life (EEOL) releases. You can upgrade directly from one EEOL release to one of
two adjacent later EEOL releases. You can also downgrade directly from one EEOL release
to one of two adjacent earlier EEOL releases.
For example, Junos OS Releases 9.3, 10.0, and 10.4 are all EEOL releases. You can upgrade
from Junos OS Release 8.5 directly to either 9.3 or 10.0. To upgrade from Release 8.5 to
10.4, you first need to upgrade to Junos OS Release 9.3 or 10.0, and then upgrade a second
time to 10.4. Similarly, you can downgrade directly from Junos OS Release 10.4 to either
directory.
/var/tmp
jinstall-ex-4200-10.3R1.8-domestic-signed.tgz
option to install the software package on only one
member
request system software delete
.
/var/tmp/package.tgz
.
option.
. This is your last chance to
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