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Supported Platforms
Related Documentation
- ACX Series
- Dual-Root Partitioning ACX Series Universal Access Routers Overview
- Understanding How the Primary Junos OS Image with Dual-Root Partitioning Recovers on the ACX Series Router
- Junos OS Release 12.2 or Later Upgrades with Dual-Root Partitioning on ACX Series Routers
- Installing Junos OS Upgrades from a Remote Server on ACX Series Routers
- Example: Installing Junos OS and Configuring a Dual-Root Partition on ACX Series Routers Using the CLI
Installing Junos OS Using a USB Storage Device on ACX Series Routers
To install the Junos OS image on ACX Series routers using a USB storage device, you must have access to the USB port physically and you must also have console access. Perform the following steps to install the Junos OS image:
- Insert the USB storage device that has a valid installation image into the USB port.
- Reboot the router by either pressing the power button
on the chassis or switching off and turning on the power button behind
the Routing Engine, or by entering the request system reboot command from the CLI. The system LED starts blinking in green.
On the console, a message is displayed stating that your flash memory device (NAND Flash device) will be formatted and you will lose all the data. You are prompted to confirm the formatting of the flash memory device.
- Press y to confirm and proceed
with the formatting process. The flash memory device is formatted
and the image is installed on both the partitions.
After the installation is completed, a message is displayed on the console prompting you to eject the USB storage device and to press Enter to reboot the device.
- After you remove the USB port and press Enter, the reboot begins. After the router is rebooted, the new Junos OS version is loaded and functional. The LED glows steadily in green.
 | Note: If an installation error occurs, the LEDs turn red. You must have console access to the router to troubleshoot an installation error. |
Related Documentation
- ACX Series
- Dual-Root Partitioning ACX Series Universal Access Routers Overview
- Understanding How the Primary Junos OS Image with Dual-Root Partitioning Recovers on the ACX Series Router
- Junos OS Release 12.2 or Later Upgrades with Dual-Root Partitioning on ACX Series Routers
- Installing Junos OS Upgrades from a Remote Server on ACX Series Routers
- Example: Installing Junos OS and Configuring a Dual-Root Partition on ACX Series Routers Using the CLI
Published: 2013-07-23
Supported Platforms
Related Documentation
- ACX Series
- Dual-Root Partitioning ACX Series Universal Access Routers Overview
- Understanding How the Primary Junos OS Image with Dual-Root Partitioning Recovers on the ACX Series Router
- Junos OS Release 12.2 or Later Upgrades with Dual-Root Partitioning on ACX Series Routers
- Installing Junos OS Upgrades from a Remote Server on ACX Series Routers
- Example: Installing Junos OS and Configuring a Dual-Root Partition on ACX Series Routers Using the CLI
