[Bug 1876974] Re: Support multiple ESPs

[Julian Andres Klode]

It's still not clear to me why you ran grub-install in the first place,
though. What made you do that?

If you change configuration, the right tool to run is update-grub, there
is no need to reinstall grub.

If you change the ESPs, you use dpkg-reconfigure, so you would not have
stumbled across that.

I can't really imagine a reason to run grub-install.

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https://bugs.launchpad.net/bugs/1876974

Title:
  Support multiple ESPs

Status in grub2 package in Ubuntu:
  New

Bug description:
  Subiquity has the brilliant feature of supporting installing to
  multiple ESP's. See https://bugs.launchpad.net/subiquity/+bug/1817066
  for details.

  grub-install does not mirror this feature this out of the box, but
  updates the ESP on /boot/efi only by default on such an installation.
  Whenever efi potentially changes, this leaves the backup ESP without
  the update.

  Adding this support would be coherent, since an admin may logically
  assume the install mode is supported beyond the installation phase.

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