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How to: Upgrade u-boot and loader on SRX Branch Devices from Shell

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Article ID: KB16317 KB Last Updated: 17 Sep 2013Version: 10.0
Summary:
How to: Upgrade u-boot and loader on SRX Branch Devices from Shell
Symptoms:
Junos 10.0 for SRX Branch series includes uboot and loader updates, as well as a bootupgrade command to upgrade the bootloader. Upgrading from Junos 9.6 to 10.0 or later may result in a alarm message, similar to the following, being generated:
user@router> show system alarms
1 alarms currently active Alarm time Class Description 2009-11-16 23:45:15 PST Minor Host 0 Boot firmware requires upgrade
This article is applicable to the following devices:

  • SRX 100

  • SRX 110

  • SRX 210

  • SRX 220

  • SRX 240

  • SRX 550

  • SRX 650
Cause:

Solution:
The Junos 10.0 image contains the latest boot loader binaries in the following path: /boot/uboot, /boot/loader. To upgrade the boot loader, perform the following procedure:
  1. Enter the shell prompt (root access is required):
    root@router> start shell
    root@router%
  2. Run the following command from the shell prompt:
    root@router% bootupgrade –u /boot/uboot –l /boot/loader 
    Upgrading Loader...
    ####################################
    Verifying the loader image... OK
    Upgrading U-Boot...
    ############################################################
    Verifying the new U-Boot image... OK
    WARNING: The new boot firmware will take effect when the system is rebooted.
  3. Reboot the SRX device.

For more information, refer to the Refer to JUNOS 10.0 Release Notes. For boot loader upgrades prior to 10.0 release, refer to KB14175 - How to: Upgrade u-boot and loader on SRX Branch Devices using TFTP method.

For SRX650, you may experience the wrong address error during the bootupgrade process. For more information, refer to KB16248 - Boot loader and u-boot upgrade from JunOS shell may fail in some SRX650.

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