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authorMichael Bacarella <michael.bacarella@gmail.com>2018-12-03 11:23:43 -0800
committerPatrick Georgi <pgeorgi@google.com>2018-12-04 10:25:42 +0000
commit106a0823c92593fe35150c5255d9852b9bff9c5d (patch)
treec8a47ed084b7105435ff41add4dfa5fd410563cf /Documentation
parentbe1907a513c21cc41256f023ada27a6ad1dfdde0 (diff)
downloadcoreboot-106a0823c92593fe35150c5255d9852b9bff9c5d.tar.xz
Documentation: Clarify minor detail on preparing a layout file
The user needs to pass the original firmware image to create a layout file, not the newly compiled coreboot image. Signed-off-by: Michael Bacarella <michael.bacarella@gmail.com> Change-Id: If47a88f06076da12d8da7a873c3e5ef64fc1f877 Reviewed-on: https://review.coreboot.org/c/30024 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Patrick Georgi <pgeorgi@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/flash_tutorial/index.md5
1 files changed, 3 insertions, 2 deletions
diff --git a/Documentation/flash_tutorial/index.md b/Documentation/flash_tutorial/index.md
index 1a291372a6..eb74ad07c1 100644
--- a/Documentation/flash_tutorial/index.md
+++ b/Documentation/flash_tutorial/index.md
@@ -68,10 +68,11 @@ On platforms where the flash IC is shared with other components you might want
to write only a part of the flash IC. On Intel for example there are IFD, ME and
GBE which don't need to be updated to install coreboot.
To make [flashrom] only write the *bios* region, leaving Intel ME and Intel IFD
-untouched, you can use a layout file, which can be created using ifdtool
+untouched, you can use a layout file, which can be created with ifdtool and a backup
+of the original firmware.
```bash
-ifdtool -f rom.layout coreboot.rom
+ifdtool -f rom.layout backup.rom
```
and looks similar to: