Not sure proposed fix is all of issue. I boot 18.04 by default with UEFI and every test or experimental install in the past has overwritten my /EFI/ubuntu. But install of Cosmic did not overwrite my /EFI/ubuntu but created /EFI/grub. It has a correct /EFI/grub/grub.cfg, but my UEFI is set to default boot using /EFI/ubuntu. But booting grub UEFI entry booted me into my default install. Issue is similar to previous bug reports where a change to GRUB_DISTRIBUTOR= creates a new UEFI entry, but internally either efi_distributor or perhaps just the code that defines where to find grub is hard coded to /EFI/ubuntu/grub.cfg. It needs to use grub.cfg in the ESP folder it creates. And kluge on Kubuntu should finally be fixed.
Older version, not sure what you have now. ./.pc/install_arm64_naming.patch/util/grub-install.c: efi_distributor = "ubuntu"; ./debian/patches/install_efi_ubuntu_flavours.patch:+ efi_distributor = "ubuntu"; ./ChangeLog: GRUB_DISTRIBUTOR on efibootmgr line. ./debian/default/grub:GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian` ./debian/postinst.in: bootloader_id="$(config_item GRUB_DISTRIBUTOR | tr A-Z a-z | \ ./debian/changelog: - Adjust UEFI installation to cope with Kubuntu setting GRUB_DISTRIBUTOR -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1775743 Title: [regression] Cosmic daily images 20180606-11 install but boots only to grub prompt on EFI systems To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub-installer/+bug/1775743/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
