Updating The Router With Junose Hotfix Files - Juniper SYSTEM BASICS - CONFIGURATION GUIDE V 11.1.X Configuration Manual

JUNOSe 11.1.x System Basics Configuration Guide

Updating the Router with JUNOSe Hotfix Files

A JUNOSe hotfix is a file or collection of files that you can apply to update an
operational E Series router to address one or more specific, critical software issues.
The hotfix can replace or add functionality to one or more software components.
Hotfixes also enable the delivery of software updates without having to load an entire
software release. Hotfixes can also deploy debugging code to collect data that
facilitates troubleshooting of software issues.
Although most hotfixes can also be manually activated without reloading the router,
some hotfixes cannot. You can configure any hotfix to be activated automatically
when the router reloads.
A hotfix consists of a .hfx file and possibly other supporting files. The .hfx file manages
the associated files in much the same way that a .rel file manages supporting files
associated with a release image.
To use a hotfix, you must use the copy command to download the file from a network
host to the router. You cannot copy the hotfix to an FTP file server. You can use file
system commands such as dir, rename, and delete with the hotfix. After a hotfix is
copied to the local flash card, it remains there until you explicitly delete it.
Hotfixes must be activated to take effect. A startup hotfix is automatically activated
during system initialization. A hot-patchable hotfix does not require a reload to become
active; it takes effect immediately if compatibilities and dependencies are correctly
met. You can manually install hot-patchable hotfixes with the hotfix activate
command. Hot-patchable hotfixes can also be configured to be activated as a startup
hotfix.
Arming a hotfix prepares it for activation after a system reload. You can configure
hotfixes in several ways with the boot hotfix and hotfix activate commands, as in
the following examples:
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Updating the Router with JUNOSe Hotfix Files
Use to monitor NVS status.
Field descriptions
total nvs file sizes Sum of sizes of all files in NVS, in bytes
total nvs file errors Number of read and write errors in all files in NVS
nvs flash in use NVS used, in bytes
available nvs flash NVS available, in bytes
Example
host1#show nvs
total nvs file sizes =
total nvs file errors = 0
nvs flash in use =
available nvs flash =
See show nvs.
228864
1265152
35435008