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| author | Alyssa Rosenzweig <alyssa@rosenzweig.io> | 2017-03-20 20:26:48 -0700 |
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| committer | Alyssa Rosenzweig <alyssa@rosenzweig.io> | 2017-03-20 20:26:48 -0700 |
| commit | a62fe03d3e84150e6186f57f53029d5a9abe3d7b (patch) | |
| tree | 1a1276b32fcc5388165bd42b685c0d9e83380a7b /docs/install/t500_external.md | |
| parent | 07da8fb0c7d513bc73470b69be99f1add0cb95e5 (diff) | |
| download | librebootfr-a62fe03d3e84150e6186f57f53029d5a9abe3d7b.tar.gz librebootfr-a62fe03d3e84150e6186f57f53029d5a9abe3d7b.zip | |
undo breakages
Diffstat (limited to 'docs/install/t500_external.md')
| -rw-r--r-- | docs/install/t500_external.md | 170 |
1 files changed, 80 insertions, 90 deletions
diff --git a/docs/install/t500_external.md b/docs/install/t500_external.md index a3176cc8..accaac32 100644 --- a/docs/install/t500_external.md +++ b/docs/install/t500_external.md @@ -1,4 +1,6 @@ -% Flashing the T500 with a BeagleBone Black + +Flashing the T500 with a BeagleBone Black +========================================= Initial flashing instructions for T500. @@ -6,12 +8,17 @@ This guide is for those who want libreboot on their ThinkPad T500 while they still have the original Lenovo BIOS present. This guide can also be followed (adapted) if you brick your T500, to know how to recover. + + + Libreboot T400 {#t400} ============== You may also be interested in the smaller, more portable [Libreboot T400](t400_external.html). + + Serial port {#serial_port} ----------- @@ -19,6 +26,8 @@ EHCI debug might not be needed. It has been reported that the docking station for this laptop has a serial port, so it might be possible to use that instead. + + A note about CPUs ================= @@ -33,6 +42,8 @@ Quad-core CPUs Incompatible. Do not use. + + A note about GPUs ================= @@ -49,17 +60,20 @@ initialization works all the same. CPU paste required ================== -See [#paste](#paste). +See [\#paste](#paste). + + Flash chip size {#flashchips} =============== -Use this to find out: - -# **flashrom -p internal -V** +Use this to find out:\ +\# **flashrom -p internal -V** [Back to top of page.](#pagetop) + + MAC address {#macaddress} =========== @@ -73,6 +87,8 @@ image before flashing it. It will be written in one of these locations:    + + Initial BBB configuration ========================= @@ -111,26 +127,20 @@ for SOIC-8 (clip: Pomona 5250): The procedure ------------- -Remove all screws: - - - +Remove all screws:\ +\ It is also advisable to, throughout the disassembly, place any screws and/or components that you removed in the same layout or arrangement. -The follow photos demonstrate this: - +The follow photos demonstrate this:\   -Remove the HDD/SSD and optical drive: - +Remove the HDD/SSD and optical drive:\   -Remove the palm rest: - +Remove the palm rest:\   -Remove the keyboard and rear bezel: - +Remove the keyboard and rear bezel:\       @@ -138,109 +148,88 @@ Remove the keyboard and rear bezel: If you have a WWAN/3G card and/or sim card reader, remove them permanently. The WWAN-3G card has proprietary firmware inside; the technology is identical to what is used in mobile phones, so it can also -track your movements: - +track your movements:\    -Remove this frame, and then remove the wifi chip: - +Remove this frame, and then remove the wifi chip:\    -Remove the speakers: - +Remove the speakers:\        -Remove the NVRAM battery (already removed in this photo): - +Remove the NVRAM battery (already removed in this photo):\  When you re-assemble, you will be replacing the wifi chip with another. These two screws don't hold anything together, but they are included in your system because the screw holes for half-height cards are a different size, so use these if you will be installing a half-height -card: - +card:\  -Unroute the antenna wires: - +Unroute the antenna wires:\     -Disconnect the LCD cable from the motherboard: - +Disconnect the LCD cable from the motherboard:\   -Remove the LCD assembly hinge screws, and then remove the LCD assembly: - +Remove the LCD assembly hinge screws, and then remove the LCD assembly:\    -Remove the fan and heatsink: - +Remove the fan and heatsink:\    -Remove this screw: - +Remove this screw:\  Remove these cables, keeping note of how and in what arrangement they -are connected: - +are connected:\          -Disconnect the power jack: - +Disconnect the power jack:\   Remove the motherboard and cage from the base (the marked hole is where -those cables were routed through): - +those cables were routed through):\   Remove all screws, arranging them in the same layout when placing the screws on a surface and marking each screw hole (this is to reduce the -possibility of putting them back in the wrong holes): - +possibility of putting them back in the wrong holes):\   -Also remove this: - +Also remove this:\   -Separate the motherboard from the cage: - +Separate the motherboard from the cage:\   The flash chip is next to the memory slots. On this system, it was a -SOIC-8 (4MiB or 32Mb) flash chip: - +SOIC-8 (4MiB or 32Mb) flash chip:\  -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. @@ -250,11 +239,10 @@ libreboot\_util. Alternatively, libreboot also distributes flashrom 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: +[bbb\_setup.html\#bbb\_access](bbb_setup.html#bbb_access). - # ./flashrom -p linux\_spi:dev=/dev/spidev1.0,spispeed=512 +Test that flashrom works:\ +\# **./flashrom -p linux\_spi:dev=/dev/spidev1.0,spispeed=512**\ In this case, the output was: flashrom v0.9.7-r1854 on Linux 3.8.13-bone47 (armv7l) @@ -267,24 +255,18 @@ 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): - -# **./flashrom -p linux\_spi:dev=/dev/spidev1.0,spispeed=512 -r -factory.rom** - -# **./flashrom -p linux\_spi:dev=/dev/spidev1.0,spispeed=512 -r -factory1.rom** - -# **./flashrom -p linux\_spi:dev=/dev/spidev1.0,spispeed=512 -r -factory2.rom** - +chip):\ +\# **./flashrom -p linux\_spi:dev=/dev/spidev1.0,spispeed=512 -r +factory.rom**\ +\# **./flashrom -p linux\_spi:dev=/dev/spidev1.0,spispeed=512 -r +factory1.rom**\ +\# **./flashrom -p linux\_spi:dev=/dev/spidev1.0,spispeed=512 -r +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: - - # sha512sum factory*.rom +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 is useful for reverse engineering work, if there is a desirable @@ -292,20 +274,19 @@ behaviour in the original firmware that could be replicated in coreboot and libreboot. Follow the instructions at -[../hcl/gm45\_remove\_me.html#ich9gen](../hcl/gm45_remove_me.html#ich9gen) +[../hcl/gm45\_remove\_me.html\#ich9gen](../hcl/gm45_remove_me.html#ich9gen) to change the MAC address inside the libreboot ROM image, before 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: - -# **./flashrom -p linux\_spi:dev=/dev/spidev1.0,spispeed=512 -w +Now flash it:\ +\# **./flashrom -p linux\_spi:dev=/dev/spidev1.0,spispeed=512 -w path/to/libreboot/rom/image.rom -V**  -You might see errors, but if it says **Verifying flash... VERIFIED** at +You might see errors, but if it says **Verifying flash\... VERIFIED** at the end, then it's flashed and should boot. If you see errors, try again (and again, and again); the message **Chip content is identical to the requested image** is also an indication of a successful @@ -326,6 +307,8 @@ Example output from running the command (see above): [Back to top of page.](#pagetop) + + Thermal paste (IMPORTANT) ========================= @@ -343,13 +326,15 @@ NOTE: the photo above is for illustration purposes only, and does not show how to properly apply the thermal paste. Other guides online detail the proper application procedure. + + Wifi ==== The T500 typically comes with an Intel wifi chipset, which does not work without proprietary software. For a list of wifi chipsets that work without proprietary software, see -[../hcl/#recommended\_wifi](../hcl/#recommended_wifi). +[../hcl/\#recommended\_wifi](../hcl/#recommended_wifi). Some T500 laptops might come with an Atheros chipset, but this is 802.11g only. @@ -360,10 +345,11 @@ 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 T500 came with: - +the Intel chip that this T500 came with:\   + + WWAN ==== @@ -374,6 +360,8 @@ also track your movements. Not to be confused with wifi (wifi is fine). + + Memory ====== @@ -387,10 +375,11 @@ 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:\  + + Boot it! -------- @@ -400,8 +389,9 @@ You should see something like this: 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 |