mirror of
https://github.com/linuxboot/heads.git
synced 2024-12-25 07:31:07 +00:00
32 lines
910 B
Markdown
32 lines
910 B
Markdown
|
To build for X220 we need to have the following files in this folder:
|
||
|
|
* `me.bin` - ME binary that has been stripped and truncated with me_cleaner
|
||
|
|
* `gbe.bin` - Network card blob from the original firmware
|
||
|
|
* `ifd.bin` - Flash layout file has been provided, layout.txt is also present for changes
|
||
|
|
|
||
|
|
To get the binaries, start with a copy of the original lenovo firmware image.
|
||
|
|
If you do not have one already, you can read one out from the laptops SPI flash.
|
||
|
|
|
||
|
|
```
|
||
|
|
flashrom --programmer internal:laptop=force_I_want_a_brick -r original.bin
|
||
|
|
```
|
||
|
|
|
||
|
|
Once you have the image, run `ifdtool` to extract the parts.
|
||
|
|
|
||
|
|
```
|
||
|
|
ifdtool -x origin.bin
|
||
|
|
```
|
||
|
|
|
||
|
|
Rename `flashregion_3_gbe.bin` to `gbe.bin`
|
||
|
|
|
||
|
|
To truncate and neuter the ME blob (this can be done automatically in coreboot 4.6):
|
||
|
|
|
||
|
|
```
|
||
|
|
me_cleaner -r -t -O me.bin flashregion_2_intel_me.bin"
|
||
|
|
```
|
||
|
|
|
||
|
|
You can now compile the image with:
|
||
|
|
|
||
|
|
```
|
||
|
|
make CONFIG=config/x220-qubes.config
|
||
|
|
```
|