at the end of the build of core-image-sato-sdk I got the following error. I'm using the edison branch with the latest changes and also building the meta-cedartrail. I had previously built core-image-sato successfully with this setup.

Any ideas?

ERROR: Function 'build_boot_bin' failed (see /build/cdv-edison/tmp/work/cedartrail-poky-linux/core-image-sato-sdk-1.0-r0/temp/log.do_bootimg.25810 for further information)
ERROR: Logfile of failure stored in: /build/cdv-edison/tmp/work/cedartrail-poky-linux/core-image-sato-sdk-1.0-r0/temp/log.do_bootimg.25810
Log data follows:
| mkdosfs: seek failed
| mkdosfs 2.10 (22 Sep 2003)
| ERROR: Function 'build_boot_bin' failed (see /build/cdv-edison/tmp/work/cedartrail-poky-linux/core-image-sato-sdk-1.0-r0/temp/log.do_bootimg.25810 for further information)
NOTE: package core-image-sato-sdk-1.0-r0: task do_bootimg: Failed
ERROR: Task 9 (/home/jim/poky/meta/recipes-sato/images/core-image-sato-sdk.bb, do_bootimg) failed with exit code '1'
ERROR: '/home/jim/poky/meta/recipes-sato/images/core-image-sato-sdk.bb' failed
jim@ubuntu-x64:/build/cdv-edison$