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  • JunosOS

    Installation and Upgrade Guide

    Modified: 2018-04-09

    Copyright 2018, Juniper Networks, Inc.

  • Juniper Networks, Inc.1133 InnovationWaySunnyvale, California 94089USA408-745-2000www.juniper.net

    Juniper Networks, the Juniper Networks logo, Juniper, and Junos are registered trademarks of Juniper Networks, Inc. and/or its affiliates inthe United States and other countries. All other trademarks may be property of their respective owners.

    Juniper Networks assumes no responsibility for any inaccuracies in this document. Juniper Networks reserves the right to change, modify,transfer, or otherwise revise this publication without notice.

    JunosOS Installation and Upgrade Guide

    Copyright 2018 Juniper Networks, Inc. All rights reserved.

    The information in this document is current as of the date on the title page.

    YEAR 2000 NOTICE

    Juniper Networks hardware and software products are Year 2000 compliant. Junos OS has no known time-related limitations through theyear 2038. However, the NTP application is known to have some difficulty in the year 2036.

    ENDUSER LICENSE AGREEMENT

    The Juniper Networks product that is the subject of this technical documentation consists of (or is intended for use with) Juniper Networkssoftware. Use of such software is subject to the terms and conditions of the End User License Agreement (EULA) posted athttps://www.juniper.net/support/eula/. By downloading, installing or using such software, you agree to the terms and conditions of thatEULA.

    Copyright 2018, Juniper Networks, Inc.ii

    https://www.juniper.net/support/eula/

  • Table of Contents

    About the Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxi

    Documentation and Release Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxi

    Supported Platforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxi

    Using the Examples in This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxii

    Merging a Full Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxii

    Merging a Snippet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiii

    Documentation Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiii

    Documentation Feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxv

    Requesting Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxvi

    Self-Help Online Tools and Resources . . . . . . . . . . . . . . . . . . . . . . . . . . xxvi

    Opening a Case with JTAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxvi

    Chapter 1 Software Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

    Junos OS Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

    One Operating System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

    One Modular Software Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

    Secure Boot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

    Junos OS with Upgraded FreeBSD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

    Release Information for Junos OS with Upgraded FreeBSD . . . . . . . . . . . . . . 32

    Changes in Package Names for Junos OS with Upgraded FreeBSD . . . . . . . . 33

    Linux-Based Platforms Package Names . . . . . . . . . . . . . . . . . . . . . . . . . 33

    EX Series Switches Package Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

    MX Series Routers Package Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

    QFX Series and EX4600 Switches Package Names . . . . . . . . . . . . . . . . 36

    SRX5400, SRX5600, and SRX5800 Devices Package Names . . . . . . . . 37

    Changes in Commands and Statements in Junos OSwith Upgraded

    FreeBSD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

    Changes in Disk Volumes for Junos OS with Upgraded FreeBSD . . . . . . . . . . 39

    /junos Volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

    /oam Volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

    Changes in Use of Snapshots for Junos OS with Upgraded FreeBSD . . . . . . . 41

    Recovery Snapshots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

    Non-Recovery Snapshots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

    Junos OS Installation Package Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

    Junos OS Installation Packages Prefixes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

    Junos OS Release Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

    Junos OS Editions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

    FIPS 140-2 Security Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

    Boot Sequence on Devices with Routing Engines . . . . . . . . . . . . . . . . . . . . . . . . . 48

    Boot Order for Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

    Booting from an Alternate Boot Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

    iiiCopyright 2018, Juniper Networks, Inc.

  • Configuration Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

    Configuration File Selection Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

    Remote Storage of Configuration Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

    Understanding Download Manager for SRX Series Devices . . . . . . . . . . . . . . . . . . 52

    Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

    Using Download Manager to Upgrade Junos OS . . . . . . . . . . . . . . . . . . . . . . . 53

    Handling Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

    Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

    Chapter 2 Installing, Upgrading, and Downgrading Software . . . . . . . . . . . . . . . . . . . . . 55

    Software Installation Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

    Installation Type Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

    Standard Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

    Category Change Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

    Recovery Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

    Understanding Software Installation on EX Series Switches . . . . . . . . . . . . . . . . . 59

    Overview of the Software Installation Process . . . . . . . . . . . . . . . . . . . . . . . . 59

    Software Package Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

    Installing Software on a Virtual Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

    Installing Software on Switches with Redundant Routing Engines . . . . . . . . 60

    Installing Software Using Automatic Software Download . . . . . . . . . . . . . . . 60

    Autoinstalling a Configuration File on an EX2200 or EX3300 Switch from

    a Disk-on-Key USB Memory Stick . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

    Installing Software on an EX2300 or EX3400 Switch . . . . . . . . . . . . . . . . . . . 61

    Configuration Image Validation on EX Series Switches . . . . . . . . . . . . . . . . . . 61

    Troubleshooting Software Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

    Understanding Junos OS Upgrades for SRX Series Devices . . . . . . . . . . . . . . . . . . 61

    Understanding Junos OS Upgrades . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

    Junos OS Upgrade Methods on the SRX Series Devices . . . . . . . . . . . . . . . . . 62

    Overview of Upgrading to 64-bit Junos OS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

    Upgrading Redundant Routing Engines from 32-bit to 64-bit Junos OS . . . . 64

    Upgrading a Single Routing Engine from 32-bit to 64-bit Junos OS Using

    One Slot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

    Upgrading a Single Routing Engine from 32-bit to 64-bit Junos OS Using

    Two Slots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

    Overview of CoS Upgrade Requirements (Junos OS Release 11.1 or 11.2 to a Later

    Release) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

    Understanding How to Back Up an Installation on Switches . . . . . . . . . . . . . . . . . 70

    Understanding System Snapshot on QFX