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| author | Alyssa Rosenzweig <alyssa@rosenzweig.io> | 2017-03-17 23:15:09 -0700 |
|---|---|---|
| committer | Alyssa Rosenzweig <alyssa@rosenzweig.io> | 2017-03-17 23:15:09 -0700 |
| commit | 1eb5130a1c70a7238548d977e9c6f371c007eed7 (patch) | |
| tree | ee28aa07cbb52f25b5f468f59ec8d9587edff739 /docs/install/t400_external.md | |
| parent | b62dbec1e23f03ae944b51fc4b510dc56ed9b83e (diff) | |
| download | librebootfr-1eb5130a1c70a7238548d977e9c6f371c007eed7.tar.gz librebootfr-1eb5130a1c70a7238548d977e9c6f371c007eed7.zip | |
It wasn't me, I swear!
Diffstat (limited to 'docs/install/t400_external.md')
| -rw-r--r-- | docs/install/t400_external.md | 102 |
1 files changed, 68 insertions, 34 deletions
diff --git a/docs/install/t400_external.md b/docs/install/t400_external.md index 347c1932..3ac8d58b 100644 --- a/docs/install/t400_external.md +++ b/docs/install/t400_external.md @@ -77,7 +77,8 @@ See [#paste](#paste). Flash chip size {#flashchips} =============== -Use this to find out:\ +Use this to find out: + # **flashrom -p internal -V** [Back to top of page.](#pagetop) @@ -137,72 +138,90 @@ for SOIC-8 (clip: Pomona 5250): The procedure ------------- -Remove *all* screws, placing them in the order that you removed them:\ +Remove *all* screws, placing them in the order that you removed them: +   -Remove those three screws then remove the rear bezel:\ +Remove those three screws then remove the rear bezel: +     -Remove the speakers:\ +Remove the speakers: +      -Remove the wifi:\ +Remove the wifi: +   -Remove this cable:\ +Remove this cable: +      -Unroute those antenna wires:\ +Unroute those antenna wires: +      -Remove the LCD assembly:\ +Remove the LCD assembly: +         -Disconnect the NVRAM battery:\ +Disconnect the NVRAM battery: +  -Disconnect the fan:\ +Disconnect the fan: +  -Unscrew these:\ +Unscrew these: +     -Unscrew the heatsink, then lift it off:\ +Unscrew the heatsink, then lift it off: +   -Disconnect the power jack:\ +Disconnect the power jack: +   -Loosen this:\ +Loosen this: +  -Remove this:\ +Remove this: +      -Unscrew these:\ +Unscrew these: +   -Remove this:\ +Remove this: +   -Unscrew this:\ +Unscrew this: +  Remove the motherboard (the cage is still attached) from the right hand -side, then lift it out:\ +side, then lift it out: +    @@ -212,19 +231,23 @@ later):       -Separate the motherboard:\ +Separate the motherboard: +   -Connect your programmer, then connect GND and 3.3V\ +Connect your programmer, then connect GND and 3.3V +       A dedicated 3.3V PSU was used to create this guide, but at ATX PSU is -also fine:\ +also fine: +  -Of course, make sure to turn on your PSU:\ +Of course, make sure to turn on your PSU: +  Now, you should be ready to install libreboot. @@ -236,7 +259,8 @@ source code which can be built. Log in as root on your BBB, using the instructions in [bbb\_setup.html#bbb\_access](bbb_setup.html#bbb_access). -Test that flashrom works:\ +Test that flashrom works: + # ./flashrom -p linux\_spi:dev=/dev/spidev1.0,spispeed=512 In this case, the output was: @@ -250,17 +274,23 @@ In this case, the output was: Please specify which chip definition to use with the -c <chipname> option. How to backup factory.rom (change the -c option as neeed, for your flash -chip):\ +chip): + # **./flashrom -p linux\_spi:dev=/dev/spidev1.0,spispeed=512 -r -factory.rom**\ +factory.rom** + # **./flashrom -p linux\_spi:dev=/dev/spidev1.0,spispeed=512 -r -factory1.rom**\ +factory1.rom** + # **./flashrom -p linux\_spi:dev=/dev/spidev1.0,spispeed=512 -r -factory2.rom**\ +factory2.rom** + Note: the **-c** option is not required in libreboot's patched flashrom, because the redundant flash chip definitions in *flashchips.c* -have been removed.\ -Now compare the 3 images:\ +have been removed. + +Now compare the 3 images: + # sha512sum factory*.rom If the hashes match, then just copy one of them (the factory.rom) to a safe place (on a drive connected to another system, not the BBB). This @@ -275,7 +305,8 @@ flashing it. Although there is a default MAC address inside the ROM image, this is not what you want. **Make sure to always change the MAC address to one that is correct for your system.** -Now flash it:\ +Now flash it: + # **./flashrom -p linux\_spi:dev=/dev/spidev1.0,spispeed=512 -w path/to/libreboot/rom/image.rom -V** @@ -340,7 +371,8 @@ whitelist of approved chips, and it will refuse to boot if you use an 'unauthorized' wifi card. The following photos show an Atheros AR5B95 being installed, to replace -the Intel chip that this T400 came with:\ +the Intel chip that this T400 came with: +   @@ -370,7 +402,8 @@ Make sure that the RAM you buy is the 2Rx8 density. be useful for RAM compatibility info (note: coreboot raminit is different, so this page might be BS) -The following photo shows 8GiB (2x4GiB) of RAM installed:\ +The following photo shows 8GiB (2x4GiB) of RAM installed: +  @@ -386,7 +419,8 @@ Now [install GNU+Linux](../gnulinux/). -Copyright © 2015 Leah Rowe <info@minifree.org>\ +Copyright © 2015 Leah Rowe <info@minifree.org> + Permission is granted to copy, distribute and/or modify this document under the terms of the Creative Commons Attribution-ShareAlike 4.0 International license or any later version published by Creative |