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util/chromeos: revise description for more utility scripts in future 

The description.md and README.md was explicitly made for downloading or
extracting some resources, but we need to add more Chrome OS related
scripts soon; so the description should be revised.

Also changed README.md for better markdown style, for example
 - Use #, ## to replace the old '-' headers
 - Use code format for file names
 - Use code block for example of shell execution

Change-Id: Icc3677fa318b03f4aee1b0f5fb13b2095f2afe64
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35664
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
This commit is contained in:
Hung-Te Lin 2019-09-28 10:23:28 +08:00 committed by Patrick Georgi
parent e088721f71
commit 544bc2693a
2 changed files with 16 additions and 15 deletions
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25
util/chromeos/README.md
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@ -1,27 +1,28 @@
Chrome OS binary extraction
===========================
# Chrome OS Scripts
These scripts can be used to extract System Agent reference code
and other blobs (e.g. mrc.bin, refcode, VGA option roms) from a
Chrome OS recovery image.
These scripts can be used to access or generate Chrome OS resources, for example
to extract System Agent reference code and other blobs (e.g. `mrc.bin`, refcode,
VGA option roms) from a Chrome OS recovery image.
crosfirmware.sh
---------------
## crosfirmware.sh
crosfirmware.sh downloads a Chrome OS recovery image from the recovery
`crosfirmware.sh` downloads a Chrome OS recovery image from the recovery
image server, unpacks it, extracts the firmware update shell archive,
extracts the firmware images from the shell archive.
To download all Chrome OS firmware images, run
```
$ ./crosfirmware.sh
```
To download, e.g. the Panther firmware image, run
```
$ ./crosfirmware.sh panther
```
extract_blobs.sh
----------------
## extract_blobs.sh
extract_blobs.sh extracts the blobs from a Chrome OS firmware image.
`extract_blobs.sh` extracts the blobs from a Chrome OS firmware image.
Right now it will produce the ME firmware blob, IFD, VGA option rom,
and mrc.bin
and `mrc.bin`.

6
util/chromeos/description.md
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@ -1,3 +1,3 @@
These scripts can be used to extract System Agent reference code and
other blobs (e.g. mrc.bin, refcode, VGA option roms) from a Chrome OS
recovery image. `C`
These scripts can be used to access Chrome OS resources, for example to extract
System Agent reference code and other blobs (e.g. mrc.bin, refcode, VGA option
roms) from a Chrome OS recovery image. `C`