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1

There are many packages which have grub in their names and part of the GRUB (the Grand Unified Boot Loader). The ones which are installed on my system are -

  1. grub-common
  2. grub-emu
  3. grub-pc
  4. grub-pc-bin
  5. grub-theme-starfield
  6. grub2
  7. grub2-common
  8. grub2-splashimages

I first looked at it to see whether it is a symlinked file or a regular file - 

 [$] ll -h /etc/default/grub

    -rw-r--r-- 1 root root 1.2K 2017-01-22 14:16 /etc/default/grub

I had a look but couldn't find anything which would tell me where this file comes from ?

[$] dpkg -S /etc/default/grub

dpkg-query: no path found matching pattern /etc/default/grub

OR 

[$] dpkg-query -W /etc/default/grub

dpkg-query: no packages found matching /etc/default/grub
share|improve this question
up vote 11 down vote accepted

In such cases you can find the relevant package by looking through the post-installation scripts:

grep /etc/default/grub /var/lib/dpkg/info/*.postinst

This reveals that the file is created by grub-pc.

share|improve this answer
    
Yep, I was still investigating more details, but indeed grub-pc. – Rui F Ribeiro 11 hours ago

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