[Bug 1879383] Re: The Treminal command "sudo apt-get remove --purge grub" is not removing "linux-image-4.15.0-91-generic"

[Steve Langasek]

You should use 'sudo dpkg --purge grub' instead.  The problem you're
having is that apt is trying to remove other packages which have already
been marked for removal, and one of those is the kernel which is where
you're running into problems in the first place due to the unconfigured
grub on the system.

Using dpkg --purge avoids apt trying to remove packages that you aren't
requesting removal of.

** Changed in: grub (Ubuntu)
       Status: New => Invalid

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Title:
  The Treminal command "sudo apt-get remove --purge grub" is not
  removing "linux-image-4.15.0-91-generic"

Status in grub package in Ubuntu:
  Invalid

Bug description:
  Based on the message I received back from Ubuntu Help Desk; they
  suggested using the command:sudo apt-get remove --purge grub. in order
  to remove linux-image-4.15.0-91-generic".

  This is the full description of what happened when trying to remove:
  "linux-image-4.15.0-91-generic" & "libc6-i386"

  Did not remove "linux-image-4.15.0-91-generic" and there still having
  errors (Could not find /boot/grub/menu.lst file).

  Best regards,

  ====
  sudo apt-get remove --purge grub
  Reading package lists... Done
  Building dependency tree       
  Reading state information... Done
  The following packages were automatically installed and are no longer required:
    libc6-i386 linux-modules-4.15.0-91-generic
  Use 'sudo apt autoremove' to remove them.
  The following packages will be REMOVED:
    grub* linux-image-4.15.0-91-generic
  0 upgraded, 0 newly installed, 2 to remove and 0 not upgraded.
  3 not fully installed or removed.
  After this operation, 9,021 kB disk space will be freed.
  Do you want to continue? [Y/n] y
  (Reading database ... 254282 files and directories currently installed.)
  Removing linux-image-4.15.0-91-generic (4.15.0-91.92~16.04.1) ...
  /var/lib/dpkg/info/linux-image-4.15.0-91-generic.postrm ... removing pending trigger
  /etc/kernel/postrm.d/initramfs-tools:
  update-initramfs: Deleting /boot/initrd.img-4.15.0-91-generic
  /etc/kernel/postrm.d/zz-update-grub:
  Searching for GRUB installation directory ... found: /boot/grub
  Searching for default file ... found: /boot/grub/default
  Testing for an existing GRUB menu.lst file ... 

  Could not find /boot/grub/menu.lst file. Would you like /boot/grub/menu.lst generated for you? (y/N) /usr/sbin/update-grub: line 1094: read: read error: 0: Bad file descriptor
  run-parts: /etc/kernel/postrm.d/zz-update-grub exited with return code 1
  dpkg: error processing package linux-image-4.15.0-91-generic (--remove):
   subprocess installed post-removal script returned error exit status 1
  Errors were encountered while processing:
   linux-image-4.15.0-91-generic
  E: Sub-process /usr/bin/dpkg returned an error code (1)

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