Comment 4 for bug 829220

I've put together a fix for this. https://code.launchpad.net/~mabac/linaro-image-tools/bug-829220/+merge/72405

The best way to use it would be to change the startfiles.cfg to use an absolute path for (at least) the u-boot binary. Then we can avoid merging the fallback hack.

A good way would be to change the u-boot package to link to /boot which makes this change unnecessary atm, but it will add support for using absolute paths later to avoid this problem altogether.

As a last resort, no change to the hwpack and land the entire change which works with today's hwpack build.