[Bug 1639374] Re: grub-pc fails to remove, causing lubuntu installs to crash

[Mathieu Trudel-Lapierre]

This most likely has nothing at all to do with Fastboot or Secure Boot.
The system appears to be correctly detected as booted in UEFI mode;
which will trigger grub-installer removing grub-pc (since it's not
needed).

For instance, from the logs: 
Nov  4 22:31:02 lubuntu grub-installer: info: architecture: amd64/efi

Can you successfully install using the alternate ISO? It seems to me
like that one should work, and we're likely seeing the effect of bug
1649462 (so Phillip would be right that this is an issue with how
Lubuntu is "packaged").

I'll run the test here to make sure. This shows we don't have enough
people testing ISOs in UEFI mode.

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https://bugs.launchpad.net/bugs/1639374

Title:
  grub-pc fails to remove, causing lubuntu installs to crash

Status in grub2 package in Ubuntu:
  Triaged

Bug description:
  Crashed during install

  ProblemType: Bug
  DistroRelease: Ubuntu 16.10
  Package: ubiquity 16.10.14
  ProcVersionSignature: Ubuntu 4.8.0-22.24-generic 4.8.0
  Uname: Linux 4.8.0-22-generic x86_64
  ApportVersion: 2.20.3-0ubuntu8
  Architecture: amd64
  CasperVersion: 1.379
  Date: Fri Nov  4 18:31:30 2016
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/lubuntu.seed cdrom-detect/try-usb=true persistent noprompt floppy.allowed_drive_mask=0 ignore_uuid boot=casper only-ubiquity quiet splash ---
  LiveMediaBuild: Lubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.1)
  ProcEnviron:
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   LC_NUMERIC=C.UTF-8
  SourcePackage: grub-installer
  UpgradeStatus: No upgrade log present (probably fresh install)

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