cmd: gpt: backup boot code before writing MBR
authorVincent Tinelli <vincent.tinelli@intel.com>
Mon, 30 Jan 2017 12:46:07 +0000 (15:46 +0300)
committerTom Rini <trini@konsulko.com>
Wed, 8 Feb 2017 20:56:29 +0000 (15:56 -0500)
commite163a931af34ba06d11b98707b69b8819e353257
tree73d9f4cd8ce384cdb0661c85458babce1406d806
parentd726f225f5eabc0efa1ef7006c4a6f840b28b767
cmd: gpt: backup boot code before writing MBR

On some cases the first 440 bytes of MBR are used to keep an additional
information for ROM boot loader. 'gpt write' command doesn't preserve
that area and makes boot code gone.

Preserve boot code area when run 'gpt write' command.

Signed-off-by: Vincent Tinelli <vincent.tinelli@intel.com>
Signed-off-by: Brennan Ashton <brn@deako.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
disk/part_efi.c