[Bug 1396379] Re: installer uses first EFI system partition found even when directed otherwise

[Tom Reynolds]

It does not seem like much work of the Desktop team has gone into this bug during the past 9 years and no one seems to be working on it right now - so it's probably not wrong to reset the status to *confirmed*.
 
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Bug 704763 discusses multiple installation scenarios, but most seems to
be about BIOS booting off a boot sector, based on this quote "[..] the
installer STILL overwrote the boot loader of my computer's INTERNAL
hard-drive (the one containing Windows Vista) with GRUB".

Comments there refer to UEFI specific bug 1512589, however that is about
debian-installer based automated (preseed) installations, and
installation method no longer supported.

So both reports differ from THIS bug 1396379, which is about the UEFI
booted Ubuntu Desktop installer always installing the boot loader to the
first EFI System Partition (ESP) it finds, even if a different
installation target for the boot loader was selected by the user.

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https://bugs.launchpad.net/bugs/1396379

Title:
  installer uses first EFI system partition found even when directed
  otherwise

Status in grub-efi-amd64-signed package in Ubuntu:
  Confirmed
Status in ubiquity package in Ubuntu:
  Confirmed
Status in grub-efi-amd64-signed source package in Jammy:
  Confirmed
Status in ubiquity source package in Jammy:
  Confirmed

Bug description:
  (k)ubuntu 14.04.1
  package version: 2.02~beta2-9ubuntu1

  i installed ubuntu on my external hard disk, where i also have a previously installed fedora system. i also have a windows
  (efi-booted) system in the internal hard disk.

  at install time via ubiquity i get all grub configuration files in the first EFI-labelled partition (i.e. /dev/sda2 in my case) instead of the one i selected (/dev/sdb1).
  later i changed my fstab mounting /boot/efi on /dev/sdb1 and tried to reinstall grub package (apt-get install --reinstall grub-efi-amd64); now all grub configuration files are in the rigt place, but booting from the external hard disk still shows the fedora grub installation, while selectin the internal hard disk from the bios menu shows a submenu listing ubuntu and windows.
  explicitly installing grub in the correct disk (grub-install /dev/sdb; grub-mkconfig -o /boot/efi/EFI/ubuntu/grub.cfg) has no effect, nor it has running efibootmgr (efibootmgr -c --disk /dev/sdb --part 1).

  expected results: grub shoud have been installed in the disk/partition i chose;
  actual results: ubuntu always chooses the first disk to install grub on.

  Note that this is not just about the dummy grub install location
  selector that is not used in EFI mode, but configuring one partition
  as do not use, and the other as ESP in the manual partitioning screen.

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