SRX – Cluster Firmware Upgrade

Before performing a firmware upgrade ensure that you have got a backup of the configuration on the device.

The USB slot in SRX series can be used to copy from/to USB storage to internal flash memory when upgrading or troubleshooting.

  • SRX100 : 1 slot
  • SRX210/240 : 2 slots
  • SRX650 : 2 slot on SRE
  • SRX3400/3600 : 2 slots on SFB and 2 slots on each RE
  • SRX5600/5800 : 2 slots on each RE

In order to copy JUNOS software installation package (e.g., junos-srxxxx-xxx.tgz) from the USB storage to internal flash memory, follow the steps below:

  1. Backup the configuration.
  2. Insert a USB flash drive into your PC.
  3. Copy the JUNOS install package (e.g. “junos-srxxxxx-xxx.tgz”) from the PC to the USB stick. The USB flash drive must be formatted in FAT16 or FAT32.
  4. Insert the USB flash drive into one of the USB slots in the SRX.
  5. Logon to the SRX and run the following command to become the “root” user on the device. You will need to enter the root password for the device.

    user@hostname> start shell user root

  6. Mount the USB flash drive.

    root@hostname% mkdir /var/tmp/usb
    root@hostname% mount -t msdos /dev/da[N]s1 /var/tmp/usb

    Note: Any directory name can be used as a mount point.
    [N] = most of the time is 1.

  7. Verify the contents of the USB flash drive.

    root@hostname% cd /var/tmp/usb
    root@hostname% ls

  8. Copy the the file from the USB flash drive to the internal storage.

    root@hostname% cp /var/tmp/usr/junos-srxxxx-xxx.tgz /root/.

  9. Perform the software upgrade.

    root@hostname% request system software add no-copy unlink /root/junos-srxxxx-xxx.tgz

    Note: It is possible to perform the upgrade directly from the USB flash drive.

  10. Swap to the secondary node, then repeat steps 4 – 9 on this node.

    root@hostname% request routing-engine login node 1

  11. Once the upgrade is complete on all nodes reboot all the nodes simultaneously.

    user@hostname% request system reboot

  12. Once the system is back on-line the firmware upgrade is complete.