Upgrading the firmware: Difference between revisions
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#REDIRECT [[Upgrading firmware]] |
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In progress. Rough outline |
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How you update the firmware depends on what method you can use and what board type you have. |
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== Finding your current firmware version == |
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The version of the firmware is displayed by OpenFirmware when the laptop boots and prior to loading the kernel. The version number is a series of 5 digits after the text |
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<code>OpenFirmware CL1</code> |
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An example would be 'Q2B74'. The last 3 digits of this string (B74) are the most important. The 'B' stands for BTest and indicates the target board for the firmware. We try hard to keep backwards compability so it will (with a few exceptions) run on an ATest board. |
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The 2 digits are the revision number of that firmware. Higher numbers equal more recent firmware versions. |
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== BTest Upgrade == |
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This is the procedure for B1 and B2 boards. The ATest procedure is [[Upgrading_the_firmware#ATest|here]] |
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=== Via Auto Updater === |
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If your firmware version is earlier than the version in [http://wiki.laptop.org/go/Autoreinstallation_image Auto Install Image] then you can just use that procedure for the update. Note: that this procedure will also upgrade the image in your nand flash. '''This means it will ERASE what is in your nand and re-wite it.''' You will loose any data you have stored on the filesystem unless you back it up. If you do not want your nand erased then please see the notes on the [http://wiki.laptop.org/go/Autoreinstallation_image Auto Install Image] page. |
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=== Manual upgrade === |
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Before you manually upgrade your firmware you should first insure that your battery is charged and that you have good AC power. If the firmware upgrade is interrupted by a power loss the result will most likely be a laptop will not power up anymore. The only recovery method from a failed flash requires disassembling the laptop and using special equipment to reprogram the hardware. |
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* Upgrade steps |
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# Download the latest firmware image from [http://wiki.laptop.org/go/Btest_Boards]. See above for decoding the version numbers. You can also just pick the firmware released on the latest date. |
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# Copy |
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- put on a key |
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- flash |
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== ATest Upgrade == |
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[[Category:Developers]] |
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[[Category:Firmware]] |
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[[Category:HowTo]] |
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Latest revision as of 06:20, 30 August 2013
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