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README: add more links to the 8m chip description

pull/35/head
Martin Kepplinger 6 years ago
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e4185e481d
1 changed files with 8 additions and 5 deletions
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      x230/README.md

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x230/README.md View File

@ -156,9 +156,12 @@ TODO
### ifd unlock and me_cleaner: the 8MB chip ### ifd unlock and me_cleaner: the 8MB chip
The Intel Management Engine resides on the 8MB chip (at the bottom, closer to
you). We don't need to touch it for coreboot-upgrades in the future, but to
enable internal flashing, we need to unlock it once:
The [Intel Management Engine](https://en.wikipedia.org/wiki/Intel_Management_Engine)
resides on the 8MB chip (at the bottom, closer to you).
We don't need to touch it for coreboot-upgrades in the future, but to
enable internal flashing, we need to unlock it once, and remove the Management
Engine for
[security reasons](https://en.wikipedia.org/wiki/Intel_Management_Engine#Security_vulnerabilities):
sudo ./external_install_bottom.sh -m -k <backup.bin> sudo ./external_install_bottom.sh -m -k <backup.bin>
@ -167,9 +170,9 @@ enable internal flashing, we need to unlock it once:
That's it. Keep the backup safe. That's it. Keep the backup safe.
#### background (just so you know) #### background (just so you know)
* The `-m` option above also runs `me_cleaner -S` before flashing back.
* The `-m` option above also runs `me_cleaner -S` before flashing back, see [me_cleaner](https://github.com/corna/me_cleaner).
* The `-l` option will (re-)lock your flash ROM, in case you want to force * The `-l` option will (re-)lock your flash ROM, in case you want to force
yourself (and others) to hardware-flashing externally.
yourself (and others) to hardware-flashing.
* Connecting an ethernet cable as a power-source for SPI (instead of the VCC pin) * Connecting an ethernet cable as a power-source for SPI (instead of the VCC pin)
is not necessary (some other flashing how-to guides mention this). is not necessary (some other flashing how-to guides mention this).
Setting a fixed (and low) SPI speed for flashrom offeres the same stability. Setting a fixed (and low) SPI speed for flashrom offeres the same stability.


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