The only thing that stands out between the working and broken images to me is:
< ii ubuntu-desktop 1.420 amd64 The Ubuntu desktop system --- > ii ubuntu-desktop 1.421 > amd64 The Ubuntu desktop system 1683c1684 < ii ubuntu-minimal 1.420 amd64 Minimal core of Ubuntu --- > ii ubuntu-minimal 1.421 > amd64 Minimal core of Ubuntu 1692c1693 < ii ubuntu-standard 1.420 amd64 The Ubuntu standard system --- > ii ubuntu-standard 1.421 > amd64 The Ubuntu standard system ** Changed in: grub-installer (Ubuntu) Importance: High => Critical ** Changed in: grub2 (Ubuntu) Importance: High => Critical ** Also affects: ubuntu-meta (Ubuntu) Importance: Undecided Status: New ** Changed in: ubuntu-meta (Ubuntu) Importance: Undecided => Critical ** Summary changed: - [regression] Cosmic daily image 20180607 installs but then never boots (stuck in grub). + [regression] Cosmic daily images 20180606-8 install but then never boot (stuck in grub). ** Description changed: - Cosmic daily image 20180607 installs successfully but then never boots - (stuck in grub). I've tried a couple of machines. + Cosmic daily images install successfully but then never boot (stuck in + grub). I've tried a couple of machines. Fails: 20180608 Fails: 20180607 Fails: 20180606 Works: 20180530 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to ubuntu-meta in Ubuntu. https://bugs.launchpad.net/bugs/1775743 Title: [regression] Cosmic daily images 20180606-8 install but then never boot (stuck in grub). Status in grub-installer package in Ubuntu: New Status in grub2 package in Ubuntu: New Status in ubuntu-meta package in Ubuntu: New Bug description: Cosmic daily images install successfully but then never boot (stuck in grub). I've tried a couple of machines. Fails: 20180608 Fails: 20180607 Fails: 20180606 Works: 20180530 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub-installer/+bug/1775743/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp