I believe it had to do with the patch debian/patches/quick-boot- lvm.patch as described here: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1800722
Here's what I wrote in a comment (#12) there a couple days ago: Seeing a regression here on 18.10/amd64 with 2.02+dfsg1-5ubuntu8.1 using EFI+btrfs boot volume. No LVM used, just GPT on NVMe. Regardless of my settings in /etc/default/grub, the boot wait is now 30 seconds. Relevant settings: GRUB_HIDDEN_TIMEOUT=1 GRUB_HIDDEN_TIMEOUT_QUIET=false GRUB_TIMEOUT=0 I've downgraded using the following commands: apt install grub-common=2.02+dfsg1-5ubuntu8 grub-efi-amd64=2.02+dfsg1-5ubuntu8 grub-efi-amd64-bin=2.02+dfsg1-5ubuntu8 grub2-common=2.02+dfsg1-5ubuntu8 apt-mark hold grub2-common grub-efi-amd64 And it's returned the previous behavior. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1814403 Title: Latest update causes 30 sec. menu delay timeout To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1814403/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
