The Quanta LB9/u-boot primer

The Pronto 3295 we received shipped with indigo preinstalled, so the install / upgrade procedures for the 3290 don't work. Namely, the command "run flash_bootcmd" returns an error.

By default, the switch boots straight to the CF card, bypassing the flash, with a U-Boot environment residing on the CF card, which then loads indigo.

On the flash exists an ONIE install. To boot this, use command "run onie_bootcmd". This install will attempt to grab an image off of the network and install it. This can be bypassed by killing the process once booted. it finds the correct image to download based off of the dhcp option "default-url"

Instructions for using this to install picos version 2.4 are at ​http://www.pica8.org/document/v2.4/pdf/picos-getting-started-and-upgraded-guide.pdf page 12-15.