Issue turns out to be due to launchpad change where dbgsym packages no longer end up in same PPA as main package, but in sub /debug/ PPA https://bugs.launchpad.net/launchpad/+bug/156575/comments/22
Adding that in the config (or adding main dbgsym repo to linaro ubuntu images) will fix it
Issue turns out to be due to launchpad change where dbgsym packages no longer end up in same PPA as main package, but in sub /debug/ PPA /bugs.launchpad .net/launchpad/ +bug/156575/ comments/ 22
https:/
Adding that in the config (or adding main dbgsym repo to linaro ubuntu images) will fix it