Installing Software Using Automatic Software Download - Dell PowerConnect J-EX4200-24T Software Manual

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Junos OS Package Names

Installing Software Using Automatic Software Download

The automatic software download feature uses the DHCP message exchange process
to download and install software packages. Users can define a path to a software package
on the DHCP server and then the DHCP server communicates this path to J-EX Series
switches acting as DHCP clients as part of the DHCP message exchange process. The
DHCP clients that have been configured for automatic software download receive these
messages and, when the software package name in the DHCP server message is different
from that of the software package that booted the DHCP client switch, download and
install the software package. See "Upgrading Software Using Automatic Software
Download on J-EX Series Switches" on page 82.
Troubleshooting Software Installation
If Junos OS loads but the CLI is not working for any reason, or if the switch has no software
installed, you can use the recovery installation procedure to install the software on the
switch. See "Troubleshooting Software Installation" on page 91.
NOTE: You can also use this procedure to load two versions of Junos OS in
separate partitions on the switch.
Downloading Software Packages on page 69
Installing Software on J-EX Series Switches (J-Web Procedure) on page 75
Installing Software on a J-EX Series Switch with a Single Routing Engine (CLI Procedure)
on page 70
Installing Software on a J-EX8200 Switch with Redundant Routing Engines (CLI
Procedure) on page 71
You upgrade Junos OS on a J-EX Series Switch by copying a software package to your
switch or another system on your local network, then install the new software package
on the switch.
A software package name is in the following format:
package-name-m.nZx.y-domestic-signed.tgz
where:
is the name of the package—for example,
package-name
is the software release, with
m.n
representing the minor release number—for example,
indicates the type of software release, where
Z
indicates beta-level software.
Chapter 4: Software Installation Overview
jinstall-ex-4200
representing the major release number and n
m
.
10.2
indicates released software and
R
.
B
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