[Bug 1363719] Re: efibootmgr may create a duplicated boot entry, "breaking" UEFI boot.

[Patrik Lundquist]

BTW, an alternative to rEFInd and Live CD is booting an Ubuntu Server
ISO and selecting Rescue a broken system. Works with LUKS disk
encryption too.

Run grub-install after replacing efibootmgr with a working version.

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https://bugs.launchpad.net/bugs/1363719

Title:
  efibootmgr may create a duplicated boot entry, "breaking" UEFI boot.

Status in “efibootmgr” package in Ubuntu:
  Confirmed

Bug description:
  Hey,
    the current version of efibootmgr has a small ordering bug that causes, at least on x240, a duplicated boot entry to be added to UEFI, breaking the boot - UEFI resets everything to default values, and you have to boot from usb stick to fix uefi entries. There is an upstream patch that fixes it, and it would be great if we could add it.

  Upstream bug report is https://github.com/vathpela/efibootmgr/issues/7

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