Insecure Upgrade: Difference between revisions

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#redirect [[Autoreinstallation image]]
This page is on how to re-flash an insecure laptop.

===Save your developer Key if you have one===
# Determine whether you have a developer key or a non-write protected machine.
#* Start up the laptop, and press esc to get to the ok prompt when you get the chance.
#* If the screen you are at has a little XO person on it and an unlocked lock symbol, you're laptop has a developer key.
#*# You should save your developer key before re-flashing, as it will be overwritten.
#*# Boot fully into sugar.
#*# Insert a clean usb key.
#*# Go to the terminal, and type:
#*#* mkdir /media/{name_of_usbkey}/security
#*#* cp /security/develop.sig /media/{name_of_usbkey}/security/
#*# Save this key for after you're done re-flashing, as you'll need to insert it to boot the laptop insecurely, and then you will want to copy it back to /security.
#* Otherwise, you're laptop is not write protected.
#** You can double check this by typing ok .mfg-data
#** The first thing listed should be 'ww'
# You can either follow the section below on doing an 'Insecure Re-flash,' or you can do a secure re-flash by following the instructions on [[Activated Upgrade]] under 'Upgrade the Activated Laptop' and replacing the key with lease.sig on it with your key that has /security/develop.sig on it.

===Insecure Re-flash===

# First ensure you have a power adapter AND battery plugged into the laptop.
# For B3 or B4 units that have a really old build (406.14), you need to first flash the firmware
## Press the power button and hold all four gamekeys; then hit ESC when you get the message that you have 3 seconds to hit escape.
## Insert a USB key with the latest [[Firmware]] on it
## At the OK prompt type: 'flash u:{path_to_rom}'
## When it powers down hold the power button until it stays off (it will want to reboot).
# To put the latest signed image on the laptop, follow these steps
## Create a USB key with the os{number}.img and fs.zip file at the root.
##* You can get these files from [http://download.laptop.org/xo-1/os/official/ official releases]
## Insert the usb key into the shut down laptop.
## If you are not up to the latest firmware, Power up the laptop while holding the X button (forces secure boot)
## When it says 'release the game keys', release the button.
##* The laptop will rewrite the flash and reboot the laptop.
##* Hit esc to get to the ok prompt, and powerdown the laptop (hold the power button)
## With the usb key inserted, power up while holding all four game buttons.
## When it says 'release the game keys', release all buttons.
##* This will re-write the nand image.
## Once done with the nand re-flash, the laptop will reboot, and get to a prompt for a name.
## Press the Alt+Ctrl+Mesh keys together to get to the terminal, and check that the laptop is at the version you wanted.
## Type root, enter, and poweroff to shut down the laptop.
# To put a development build on the laptop, follow these steps
## Create a USB key based on the page [[Autoreinstallation image]]
##* Specifically, the section [[Autoreinstallation image#Preparing the autoupdate image]]
## Insert the USB key into the laptop
## If you aren't at the latest firmware, follow the steps above for flashing the firmware on B3, B4, etc...
## Power up the laptop while holding the square button.
##* This will re-flash the nand image.
## When the laptop is done re-flashing, it will reboot the laptop up to the prompt for a name.
## Press the Alt+Ctrl+Mesh keys together to get to the terminal, and check that the laptop is at the version you wanted.
## Either shutdown the laptop by typing, root, enter, poweroff, or press Alt+Ctrl+Home to go back to the name prompt, and continue with the booting process.

Latest revision as of 23:48, 18 January 2008