There is an updated build of grub in the wily daily images, compared with the 15.04 release. The source changes to grub should not be an issue, but there have been toolchain updates between the two builds of grub, which may come into play.
>From the ppc64el build log of grub2 2.02~beta2-22ubuntu1: Toolchain package versions: libc6-dev_2.21-0ubuntu4 make_4.0-8.1 dpkg-dev_1.17.24ubuntu1 gcc-4.9_4.9.2-10ubuntu12 g++-4.9_4.9.2-10ubuntu12 binutils_2.25-5ubuntu6 libstdc++-4.9-dev_4.9.2-10ubuntu12 libstdc++6_4.9.2-10ubuntu12 >From the ppc64el build log of grub2 2.02~beta2-23: Toolchain package versions: libc6-dev_2.21-0ubuntu4 make_4.0-8.1 dpkg-dev_1.17.25ubuntu1 gcc-4.9_4.9.2-17ubuntu1 g++-4.9_4.9.2-17ubuntu1 binutils_2.25-5ubuntu7 libstdc++-4.9-dev_4.9.2-17ubuntu1 libstdc++6_5.1.1-5ubuntu4 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1459706 Title: Ubuntu 15.10 daily ISO installation fails to reboot with Program Exception To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/debian-installer/+bug/1459706/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
