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Table of Contents Expand all

play_arrow Junos OS Overview
- play_arrow Junos OS Overview
  - Junos OS Overview
play_arrow Install, Upgrade, or Downgrade for Junos OS Software
- play_arrow Junos OS Install and Upgrade Overview
  - Junos OS Installation and Upgrade Overview
  - Storage Media and Routing Engines (Junos OS)
- play_arrow Prepare for Installation and Upgrade
- play_arrow Upgrade to Junos OS with Upgraded FreeBSD
  - Upgrading and Downgrading to Junos with Upgraded FreeBSD
- play_arrow Install Software on Routers
- play_arrow Install Software on Switches
- play_arrow Install Software on Firewalls
- play_arrow Manage YANG Packages During an Upgrade or Downgrade
  - Managing YANG Packages and Configurations During a Software Upgrade or Downgrade
play_arrow System Backup and Recovery
- play_arrow Back Up an Installation
  - Backing Up an Installation Using Snapshots (Junos OS)
- play_arrow Recover Junos OS
play_arrow Installation, Upgrade, and Downgrade VM Host Software, and Back Up and Recovery of VM Host Devices
- play_arrow VM Host Overview and CLI Commands
  - VM Host Overview (Junos OS)
  - VM Host Operations and Management
- play_arrow Boot Process for Routers with VM Host Support
  - Boot Process for Routers with VM Host Support
- play_arrow Installing, Upgrading, Backing Up, and Recovery of VM Host
  - Installing, Upgrading, Backing Up, and Recovery of VM Host
- play_arrow Copying VM Host Installation Package to the PXE Boot Server
  - Copying VM Host Installation Package to the PXE Boot Server
- play_arrow Upgrading NFX Devices
- play_arrow Creating an Emergency Boot Device for Routing Engines with VM Host Support
  - Creating an Emergency Boot Device for Routing Engines with VM Host Support
- play_arrow Upgrading Firmware on Routing Engines with VM Host Support
  - Upgrading the SSD Firmware on Routing Engines with VM Host Support
  - Upgrading the i40e NVM Firmware on Routing Engines with VM Host Support
- play_arrow Disabling Autorecovery on Routing Engines with VM Host Support
  - Disabling Autorecovery on Routing Engines with VM Host Support
play_arrow Installing and Upgrading the BIOS and Firmware
- play_arrow For Routers
  - Installing and Upgrading Firmware
- play_arrow For Switches
- play_arrow For Firewalls
  - Upgrading BIOS and Firmware (SRX only)
  - Upgrading 5.1KW HVAC/HVDC Single and Dual Input PSM Firmware (SRX5800)
play_arrow Zero Touch Provisioning and Secure Zero Touch Provisioning
play_arrow Phone-Home Client
- play_arrow Phone-Home Client
play_arrow Automatic Installation of Configuration Files
- play_arrow Automatic Installation of Configuration Files
play_arrow Configuration Statements and Operational Commands
- play_arrow Configuration Statements and Operational Commands
  - Junos CLI Reference Overview

list Table of Contents

English

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Managing Disk Space for Junos OS Installation

date_range 13-Jan-21

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A Junos OS installation or upgrade may fail if your router has a shortage of disk space. If a disk space error occurs, use one or more of the following options to complete the installation:

Use the request system storage cleanup command to delete unnecessary files and increase storage space on the router.
Specify the unlink option when you use the request system software add command to install the Junos OS:
- On the M Series, MX Series, and T Series routers, the unlink option removes the software package after a successful upgrade.
Download the software packages you need from the Juniper Networks Support Web site at https://www.juniper.net/support/. The download program provides intelligent disk space management to enable installation.

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