[Bug 2115479] [NEW] post install script error

[Colette Kerr]

Public bug reported:

My system reboots, but this upgrade won't finish. I am running Oracular.
I have made no changes to grub on this machine. However, I migrated this
install from one PC to another with different hardware.

ckerr at kiki:~$ sudo apt upgrade 
The following packages were automatically installed and are no longer required:
  libamd-comgr2  libhsa-runtime64-1  libhsakmt1
Use 'sudo apt autoremove' to remove them.

Summary:
  Upgrading: 0, Installing: 0, Removing: 0, Not Upgrading: 0
  1 not fully installed or removed.
  Space needed: 0 B / 277 GB available

Continue? [Y/n] 
Setting up grub-efi-amd64-signed (1.209.4+2.12-5ubuntu5.3) ...
mount: /var/lib/grub/esp: special device /dev/disk/by-id/nvme-eui.001b448b496e7314-part1 does not exist.
       dmesg(1) may have more information after failed mount system call.
dpkg: error processing package grub-efi-amd64-signed (--configure):
 installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 32
Errors were encountered while processing:
 grub-efi-amd64-signed
Error: Sub-process /usr/bin/dpkg returned an error code (1)
ckerr at kiki:~$ sudo dmesg
[…]
[  870.319799] /dev/disk/by-id/nvme-eui.001b448b496e7314-part1: Can't lookup blockdev

Its quite right, there is no such disk. This is baked into a debconf.
Its just that the drive its looking for isn't there any more. This
shouldn't break so opaquely, disks change.

My fix was `echo "grub-efi-amd64 grub-efi/install_devices multiselect
/dev/nvme1n1p1" | debconf-set-selections` but it should honestly do
something smarter

** Affects: grub2-signed (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/2115479

Title:
  post install script error

Status in grub2-signed package in Ubuntu:
  New

Bug description:
  My system reboots, but this upgrade won't finish. I am running
  Oracular. I have made no changes to grub on this machine. However, I
  migrated this install from one PC to another with different hardware.

  ckerr at kiki:~$ sudo apt upgrade 
  The following packages were automatically installed and are no longer required:
    libamd-comgr2  libhsa-runtime64-1  libhsakmt1
  Use 'sudo apt autoremove' to remove them.

  Summary:
    Upgrading: 0, Installing: 0, Removing: 0, Not Upgrading: 0
    1 not fully installed or removed.
    Space needed: 0 B / 277 GB available

  Continue? [Y/n] 
  Setting up grub-efi-amd64-signed (1.209.4+2.12-5ubuntu5.3) ...
  mount: /var/lib/grub/esp: special device /dev/disk/by-id/nvme-eui.001b448b496e7314-part1 does not exist.
         dmesg(1) may have more information after failed mount system call.
  dpkg: error processing package grub-efi-amd64-signed (--configure):
   installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 32
  Errors were encountered while processing:
   grub-efi-amd64-signed
  Error: Sub-process /usr/bin/dpkg returned an error code (1)
  ckerr at kiki:~$ sudo dmesg
  […]
  [  870.319799] /dev/disk/by-id/nvme-eui.001b448b496e7314-part1: Can't lookup blockdev

  Its quite right, there is no such disk. This is baked into a debconf.
  Its just that the drive its looking for isn't there any more. This
  shouldn't break so opaquely, disks change.

  My fix was `echo "grub-efi-amd64 grub-efi/install_devices multiselect
  /dev/nvme1n1p1" | debconf-set-selections` but it should honestly do
  something smarter

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