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| author | Sebastian 'Swift Geek' Grzywna <swiftgeek@gmail.com> | 2018-05-27 12:20:52 +0200 |
|---|---|---|
| committer | Sebastian 'Swift Geek' Grzywna <swiftgeek@gmail.com> | 2018-05-27 12:20:52 +0200 |
| commit | 5c9c33854efe9285a79d510a90181b5c8eeb4864 (patch) | |
| tree | 1d5b54bd81a43f5cb91219c34d3a7950ae858f9b /docs/install/x200_external.md | |
| parent | e9aa96f3d2b482faddfa9a4d8ebe979692c2d5d4 (diff) | |
| download | librebootfr-5c9c33854efe9285a79d510a90181b5c8eeb4864.tar.gz librebootfr-5c9c33854efe9285a79d510a90181b5c8eeb4864.zip | |
Clarify image verification
Diffstat (limited to 'docs/install/x200_external.md')
| -rw-r--r-- | docs/install/x200_external.md | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/docs/install/x200_external.md b/docs/install/x200_external.md index 3ff34501..5dd39877 100644 --- a/docs/install/x200_external.md +++ b/docs/install/x200_external.md @@ -163,7 +163,9 @@ Now compare the 3 images: # sha512sum factory*.rom -If the hashes match, then just copy one of them (the factory.rom) to a +If the hashes match and if hex editor (like `dhex`) shows that +they have valid contents (eg. it's not filled entirely with `0x00`/`0xFF`), +then just copy one of them (the factory.rom) to a safe place (on a drive connected to another system, not the BBB). This is useful for reverse engineering work, if there is a desirable behaviour in the original firmware that could be replicated in coreboot |