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On some linux hosts image recipes will fail to build as follows: ERROR: build-essential-0.3-r0 do_image_ext3: Usage: bbdebug [123] "message" ERROR: build-essential-0.3-r0 do_image_ext3: Function failed: do_image_ext3 (log file is located at /opt/build/tmp/work/intel_corei7_64-wrs-linux/build-essential/0.3-r0/temp/log.do_image_ext3.43744) ERROR: Logfile of failure stored in: /opt/build/tmp/work/intel_corei7_64-wrs-linux/build-essential/0.3-r0/temp/log.do_image_ext3.43744 ERROR: Task (/opt/layers/meta-overc/meta-build/recipes-core/images/build-essential_0.3.bb:do_image_ext3) failed with exit code '1' Running with bitbake -v -v -v -D we get in the log file: + bbdebug 1 Executing 'dd if=/dev/zero of=/opt/build/tmp/work/intel_corei7_64-wrs-linux/build-essential/0.3-r0/deploy-build-essential-image-complete/build-essential-intel-corei7-64-20180220190510.rootfs.ext3 seek=484486 count=0 bs=1024' + USAGE='Usage: bbdebug [123] "message"' + '[' 3 -lt 2 ']' + DBGLVL=1 + shift ++ echo 1 ++ echo 1 ++ tr -d t ++ tr -d t + NONDIGITS=1 + '[' 1 ']' + bbfatal 'Usage: bbdebug [123] "message"' The debug output tells us that the NONDIGITS check failed to remove the digits using the tr expression. Enclosing the expression in quotes causes it to work properly. (From OE-Core rev: 9e6d283aa9c77685f55a62fa220226d9149ecd7a) (From OE-Core rev: 35ed47d1fcbdd384aa804b686e1c92d22b74fc15) Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Signed-off-by: Ross Burton <ross.burton@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org> Signed-off-by: Armin Kuster <akuster808@gmail.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
QEMU Emulation Targets ====================== To simplify development, the build system supports building images to work with the QEMU emulator in system emulation mode. Several architectures are currently supported in 32 and 64 bit variants: * ARM (qemuarm + qemuarm64) * x86 (qemux86 + qemux86-64) * PowerPC (qemuppc only) * MIPS (qemumips + qemumips64) Use of the QEMU images is covered in the Yocto Project Reference Manual. The appropriate MACHINE variable value corresponding to the target is given in brackets.