Just saw one thread in Ubuntu Forums & one in AskUbuntu where with 18.04 the Boot-Repair output from efibootmgr -v shows no ubuntu entry and only has a grub entry.
See: https://ubuntuforums.org/showthread.php?t=2396042 And: https://askubuntu.com/questions/1053895/system-always-boots-to-grub-prompt?noredirect=1#comment1722812_1053895 This user already reported that copying /EFI/grub/grub.cfg to /EFI/ubuntu/grub.cfg fixed his boot issue.
Just saw one thread in Ubuntu Forums & one in AskUbuntu where with 18.04 the Boot-Repair output from efibootmgr -v shows no ubuntu entry and only has a grub entry.
See: /ubuntuforums. org/showthread. php?t=2396042 /askubuntu. com/questions/ 1053895/ system- always- boots-to- grub-prompt? noredirect= 1#comment172281 2_1053895 grub.cfg fixed his boot issue.
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And:
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This user already reported that copying /EFI/grub/grub.cfg to /EFI/ubuntu/