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| author | Jonathan Maw <jonathan.maw@codethink.co.uk> | 2012-11-29 11:58:47 +0000 |
|---|---|---|
| committer | Jonathan Maw <jonathan.maw@codethink.co.uk> | 2012-11-29 11:58:47 +0000 |
| commit | 0846de0e1795a30512f5575388d163ea548125de (patch) | |
| tree | e1bc03fa83c61165f48ffe3f528ac5496332872a /diag/mbr/README | |
| parent | ede8500d7c710e4ddf650f1a1ef3ccf2a89e5313 (diff) | |
| parent | 7307d60063ee4303da4de45f9d984fdc8df92146 (diff) | |
| download | syslinux-baserock/genivi/morph.tar.gz | |
Merge the latest changes from upstreambaserock/genivi/morph
Diffstat (limited to 'diag/mbr/README')
| -rw-r--r-- | diag/mbr/README | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/diag/mbr/README b/diag/mbr/README index fb7a7dd8..96b67c6c 100644 --- a/diag/mbr/README +++ b/diag/mbr/README @@ -5,11 +5,13 @@ handoff.bin Show the data that the BIOS/MBR hands off to an MBR/VBR. +++ USAGE +++ +NOTE: in the examples, mbr.bin, /dev/hda and /dev/hda1 are used as generic representations. + Writing out an MBR is straight forward (it is assumed below that /dev/hda is the target raw device and /dev/hda1 is the target partition): dd conv=notrunc bs=440 count=1 if=mbr.bin of=/dev/hda -Writing a VBR to match Syslinux requires more work as it must have a jump and be offset into the partition: +Writing a VBR to match Syslinux requires more work as it must have a jump and be offset into the partition (and as a result the code must be compaible with this offset): echo -en "\0353\0130\0220" |dd conv=notrunc bs=1 count=3 of=/dev/hda1 dd conv=notrunc bs=2 count=210 seek=45 if=mbr.bin of=/dev/hda1 |