Upgrade Software Packages; Recovery Software Packages - Juniper J-Series Administration Manual

J-series Services Router Administration Guide
J-Web interface or the CLI to upgrade, the router downloads the software image,
decompresses the image, and installs the decompressed software. Finally, you reboot
the router, at which time it boots from the upgraded software.
All JUNOS software is delivered in signed packages that contain digital signatures,
Secure Hash Algorithm (SHA-1) checksums, and Message Digest 5 (MD5) checksums.
For more information about JUNOS software packages, see the JUNOS Software
Installation and Upgrade Guide.

Upgrade Software Packages

An upgrade software package name is in the following format:
package-name-m.nZx.y-distribution.tgz
A sample J-series upgrade software package name is

Recovery Software Packages

Download a recovery software package, also known as an install media package, to
recover a primary compact flash.
A recovery software package name is in the following format:
package-name-m.nZxy-export-cfnnn.gz
180
Upgrade and Downgrade Overview
is the name of the package—for example,
package-name
is the software release, with
m.n
n representing the minor release number—for example, 9.0.
indicates the type of software release. For example,
Z
software, and B indicates beta-level software.
represents the software build number and spin number—for example,
x.y
indicates the area for which the software package is
distribution
provided— domestic for the United States and Canada and
distribution.
package-name is the name of the package—for example,
is the software release, with
m.n
example, .
7.5
indicates the type of software release. For example,
Z
software, and indicates beta-level software.
B
represents the software build number and spin number—for example,
x.y
indicates that the recovery software package is the exported worldwide
export
software package version.
cfnnn indicates the size of the target compact flash in megabytes—for example,
.
cf256
The following compact flash sizes are supported:
256 MB
.
representing the major release number and
m
indicates released
R
junos-jseries-9.0R1-domestic.tgz
.
representing the major release number—for
m
R indicates released
junos-jseries .
.
1.1
export for worldwide
.
junos-jseries .
1.1 .