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bootimg: Fix a math thinko in the block count calculation 

Fixes [YOCTO #1852] ... again.

The conversion from sectors to blocks was multiplying by 2 instead
of dividing by 2. Blocks are 1024 bytes, sectors are 512 bytes. The
result was images being much larger than intended.

Reported-by: Tom Zanussi <tom.zanussi@intel.com>
(From OE-Core rev: b35384fa3ca96b31c63d764322215abced2066e4)

Signed-off-by: Darren Hart <dvhart@linux.intel.com>
CC: Joshua Lock <josh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

Backported to edison by Darren Hart.

Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Darren Hart 2012-04-11 10:51:12 -07:00 committed by Richard Purdie
parent d1c5de9ccb
commit bb31c819be
1 changed files with 2 additions and 1 deletions
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meta/classes/bootimg.bbclass
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@ -92,7 +92,8 @@ build_boot_bin() {
SECTORS=$(expr $SECTORS + $(expr $DIR_SECTORS + $FAT_SECTORS))
# Determine the final size in blocks accounting for some padding
BLOCKS=$(expr $(expr $SECTORS \* 2) + ${BOOTIMG_EXTRA_SPACE})
BLOCKS=$(expr $(expr $SECTORS / 2) + ${BOOTIMG_EXTRA_SPACE})
# Ensure total sectors is an integral number of sectors per
# track or mcopy will complain. Sectors are 512 bytes, and we