Change in ...coreboot[master]: Clarify minor detail on preparing a layout file

[Michael Bacarella (Code Review)]

Michael Bacarella has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/30024

Change subject: Clarify minor detail on preparing a layout file
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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 
Change-Id: If47a88f06076da12d8da7a873c3e5ef64fc1f877
---
M Documentation/flash_tutorial/index.md
1 file changed, 3 insertions(+), 2 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/24/30024/1

diff --git a/Documentation/flash_tutorial/index.md b/Documentation/flash_tutorial/index.md
index 1a29137..eb74ad0 100644
--- a/Documentation/flash_tutorial/index.md
+++ b/Documentation/flash_tutorial/index.md
@@ -68,10 +68,11 @@
 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: