I am always using UEFI. I don't think grub2 is the problem. This bug pre-dates that update by about 1 day. And image 20180606, which contains the bug, does not contain the new grub2:
ii grub-common 2.02-2ubuntu8 amd64 GRand Unified Bootloader (common files) ii grub-gfxpayload-lists 0.7 amd64 GRUB gfxpayload blacklist ii grub-pc 2.02-2ubuntu8 amd64 GRand Unified Bootloader, version 2 (PC/BIOS version) ii grub-pc-bin 2.02-2ubuntu8 amd64 GRand Unified Bootloader, version 2 (PC/BIOS binaries) ii grub2-common 2.02-2ubuntu8 amd64 GRand Unified Bootloader (common files for version 2) See comment #2. -- 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 20180606-11 install but then never boot (stuck in grub). Status in ubuntu-meta package in Ubuntu: Confirmed Bug description: Cosmic daily images install successfully but then never boot (stuck in grub). I've tried a couple of machines. Fails: 20180611 Fails: 20180608 Fails: 20180607 Fails: 20180606 Works: 20180530 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-meta/+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