Insecure Upgrade: Difference between revisions
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This page is on how to re-flash an insecure laptop. |
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===Save your developer Key if you have one=== |
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# Determine whether you have a developer key or a non-write protected machine. |
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#* Start up the laptop, and press esc to get to the ok prompt when you get the chance. |
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#* If the screen you are at has a little XO person on it and an unlocked lock symbol, your laptop has a developer key. |
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#*# You should save your developer key before re-flashing, as it will be overwritten. |
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#*# Boot fully into sugar. |
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#*# Insert a clean usb key. |
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#*# Go to the terminal, and type: |
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#*#* mkdir /media/{name_of_usbkey}/security |
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#*#* cp /security/develop.sig /media/{name_of_usbkey}/security/ |
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#*# 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. |
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#* Otherwise, your laptop is not write protected. |
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#** You can double check this by typing ok .mfg-data |
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#** The first thing listed should be 'ww' |
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# 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. |
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#* Also note, that if you have a non-write protected machine, the firmware will not re-flash itself when you do a secure re-flash. The way to force this is to hold the 'x' button on bootup (with the key that has fs.zip and os{num}.img inserted). This will turn security on for just this boot, and the firmware will be re-flashed. |
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===Insecure Re-flash=== |
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# First ensure you have a power adapter AND battery plugged into the laptop. |
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# For B3 or B4 units that have a really old build (406.14), you need to first flash the firmware |
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## 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. |
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## Insert a USB key with the latest [[Firmware]] on it |
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## At the OK prompt type: 'flash u:\{path_to_rom}' (EX: flash u:\q2d07.rom) |
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## When it powers down hold the power button until it stays off (it will want to reboot). |
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# To put the latest signed image on the laptop, follow these steps |
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## Create a USB key with the os{number}.img and fs.zip file at the root. |
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##* You can get these files from [http://download.laptop.org/xo-1/os/official/ official releases] |
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## Insert the usb key into the shut down laptop. |
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## If you are not up to the latest firmware, Power up the laptop while holding the X button (forces secure boot) |
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## When it says 'release the game keys', release the button. |
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##* The laptop will rewrite the flash and reboot the laptop. |
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##* Hit esc to get to the ok prompt, and powerdown the laptop (hold the power button) |
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## With the usb key inserted, power up while holding all four game buttons. |
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## When it says 'release the game keys', release all buttons. |
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##* This will re-write the nand image. |
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## Once done with the nand re-flash, the laptop will reboot, and get to a prompt for a name. |
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## Press the Alt+Ctrl+Mesh keys together to get to the terminal, and check that the laptop is at the version you wanted. |
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## Type root, enter, and poweroff to shut down the laptop. |
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# To put a development build on the laptop, follow these steps |
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##* Specifically, the section [[Autoreinstallation image#Preparing the autoupdate image]] |
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## Insert the USB key into the laptop |
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## If you aren't at the latest firmware, follow the steps above for flashing the firmware on B3, B4, etc... |
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## Power up the laptop while holding the square button. |
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##* This will re-flash the nand image. |
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## When the laptop is done re-flashing, it will reboot the laptop up to the prompt for a name. |
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## Press the Alt+Ctrl+Mesh keys together to get to the terminal, and check that the laptop is at the version you wanted. |
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## 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. |
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Latest revision as of 23:48, 18 January 2008
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