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

[Jamal Sarraf]

Public bug reported:

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)

** Affects: grub (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1879383

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:
  New

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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