image-vm: Avoid use of fold, tac and paste commands for DISK_SIGNATURE

These commands are not whitelisted by the HOSTTOOLS variable which
silently prevents the MBR disk signature from being written to the
image.

Reported-by: Michael Davis <michael.davis@essvote.com>
(From OE-Core rev: a58e53f55259acd79a98a0f8b8a435d2a5aef36e)

Signed-off-by: Jonathan Liu <net147@gmail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Jonathan Liu
2017-06-08 21:07:54 +10:00
committed by Richard Purdie
parent 253660a139
commit d2390c0646

View File

@@ -93,7 +93,7 @@ build_boot_dd() {
parted $IMAGE print
awk "BEGIN { printf \"$(echo ${DISK_SIGNATURE} | fold -w 2 | tac | paste -sd '' | sed 's/\(..\)/\\x&/g')\" }" | \
awk "BEGIN { printf \"$(echo ${DISK_SIGNATURE} | sed 's/\(..\)\(..\)\(..\)\(..\)/\\x\4\\x\3\\x\2\\x\1/')\" }" | \
dd of=$IMAGE bs=1 seek=440 conv=notrunc
OFFSET=`expr $END2 / 512`