TFTP Install Firmware From Loader

TFTP Installing Firmware From The Loader

• connect a console
• reboot the device
• interrupt the boot process when it says

  Press SPACE to abort autoboot

• set U-boot environment (note that the gatewayip may not be necessary if you are on the same subnet as your tftp server)

=> setenv ipaddr 10.157.70.170
=> setenv netmask 255.255.255.0
=> setenv gatewayip 10.157.64.1
=> setenv serverip 10.157.60.1
=> saveenv
=> reset

• the firewall reboots
• let the boot pass through the autoboot prompt as above
• interrupt the boot with the space bar when you see

  Hit [Enter] to boot immediately, or space bar for command prompt.

• issue the install command at the loader prompt:

  loader> install tftp://10.77.25.12/junos-srxsme-10.0R2-domestic.tgz

• the firewall will boot the new kernel, format the partitions, then install the firmware. On a SRX320 this took in excess of 20 minutes to run.
• the firewall will reboot into Amnesiac state.