Juniper JUNOS 10.2, Upgrade Manual

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On Juniper Networks servers running the JUNOS operating system, installation
files are typically placed in the
/var/tmp directory. If you are placing the file on
a remote system, you must make sure that the file can be accessed by the router
using HTTP, FTP, or scp.
lcd /var/tmp
Local directory now /var/tmp.
6.
Download the installation file:
get <filename>
7.
Close the FTP session:
bye
Goodbye.
Connecting to the Console Port
The console port is a data terminal equipment (DTE) interface, providing a direct
and continuous interface with the router. It is important to connect to the console
during installation procedures so you can respond to any required user input and
detect any errors that may occur.
For more information about connecting to the console port, see the administration
guide for your particular router.
Backing Up the Current Installation (M Series, MX Series, T Series, TX Matrix, and
TX Matrix Plus Routers)
You should back up the current installation so that you can return to the current
software installation. In a dual Routing Engine system, you need to back up both
Routing Engines. This section covers the following:
The installation process using the installation package (
jinstall*
, for example) removes
all stored files on the router except the
juniper.conf
and SSH files. Therefore, you
should back up your current configuration in case you need to return to the current
software installation after running the installation program.
To back up the JUNOS Software on the M Series, MX Series, T Series, TX Matrix, and
TX Matrix Plus routers, issue the
request system snapshot
CLI operational command.
This command saves the current software installation on the hard drive.
NOTE: On M Series, MX Series, T Series, TX Matrix, and TX Matrix Plus routers with
dual Routing Engines, complete this operation on both Routing Engines. On routers
without a CompactFlash card, where the hard drive is the primary boot device, you
cannot back up your software installation.
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Connecting to the Console Port
JUNOS Release 10.2 Software Installation and Upgrade Guide