Updating a PandA via SSH

The Admin interface of the PandA can be used to update the firmware as detailed in the _web_doc, but sometimes it is necessary to update a number of PandAs at once. The SSH interface can be used to do this.

To gain access over SSH, either add an authorized_keys file to the SD card, or load it from USB via the Admin interface.

It is then possible to log in remotely and perform operations on the PandA.

Warning

PandA only has a single user; root, and remote access is done as this user. Root has privileges to break the system, so be careful when running the commands below.

Updating the rootfs

Download a new boot-{MACHINE}.tar.gz file from GitHub and extract it somewhere. You can then:

$ ssh root@my_panda_ip rm /boot/rootfs.squashfs
$ scp boot-{MACHINE}/* root@my_panda_ip:/boot
$ ssh root@my_panda_ip sync
Within /boot you should find::

  • boot.bin

  • boot.scr

  • Image

  • rootfs.squashfs

  • target-defs

You can power cycle the box and it will install the new rootfs.

Update 24V eeprom

PandA 3.0 requires an update to the EEPROM of 24Vio FMC cards to do this:

  • Find the right ipmi_definition file according the the product and revision (the one for FMC24V is under its module folder)

  • Copy it to panda

  • Run /opt/bin/write_eeprom <path-to-ipmi-definition>

  • After writing, the script will read the EEPROM to confirm the content matches