[Bug 1892842] Re: ubuntu-mate 20.10 failed to install GRUB on legacy, real hardware

[Norbert]

** Changed in: grub-installer (Ubuntu)
       Status: New => Fix Released

** Changed in: ubiquity (Ubuntu)
       Status: New => Fix Released

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https://bugs.launchpad.net/bugs/1892842

Title:
  ubuntu-mate 20.10 failed to install GRUB on legacy, real hardware

Status in grub-installer package in Ubuntu:
  Fix Released
Status in ubiquity package in Ubuntu:
  Fix Released

Bug description:
  SL500, legacy, ESP and rootfs / .

  ```
  Unable to install GRUB in /dev/sda (as superuser)

  Executing 'grub-install /dev/sda' failed

  This is fatal error.
  ```


  ProblemType: Bug
  DistroRelease: Ubuntu 20.10
  Package: ubiquity 20.10.9
  ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44
  Uname: Linux 5.4.0-42-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu44
  Architecture: amd64
  CasperMD5CheckResult: pass
  CasperVersion: 1.452
  Date: Tue Aug 25 12:30:44 2020
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu-mate.seed maybe-ubiquity quiet splash ---
  LiveMediaBuild: Ubuntu-MATE 20.10 "Groovy Gorilla" - Alpha amd64 (20200824)
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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