[Bug 581796] Re: grub-installer ignores grub2/linux_cmdline_default in preseed

[Thiago Martins]

I was so annoyed that my "presseded" installations of Ubuntu 20.04
Legacy ISO Server with Packer were ending up with a black screen that
only "ALT + Arrow Right" was bringing the `tty1` back to life...

Then, I realized that the "Packer builds were adding" the "quiet splash"
to the /etc/default/grub file, no matter what I did to pressed regular
options, and this problem brought me to this... 11 years old bug
report!!! Whaaaat?!

So, the workaround proposed on comment #1 worked like a charm, and
finally, my Packer builds produces awesome server images with a nice
verbose boot that goes straight to tty1!

It looks like that won't be fixed since Canonical is moving to the new
subiquity, Cloud-Init based `autoinstall`. Kinda sad. I don't like the
new "Live Server" install media, legacy is way, way better.

Thank you Mathieu!

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https://bugs.launchpad.net/bugs/581796

Title:
  grub-installer ignores grub2/linux_cmdline_default in preseed

Status in grub-installer package in Ubuntu:
  Triaged

Bug description:
  Binary package hint: grub-installer

  Description:    Ubuntu 10.04
  Release:        10.04

  When automatically installing a system with a preseed file, grub-
  installer seems to ignore settings for grub2/linux_cmdline_default.

  I have tried the following two lines in my preseed file, but none of
  them worked:

  grub-pc grub2/linux_cmdline_default string
  d-i grub2/linux_cmdline_default string

  
  When running `debconf-get-selections` on the newly installed system, the output still contains:

  grub-pc grub2/linux_cmdline_default     string  quiet splash

  
  This seems to be an error (or at least an undocumented nuisance) of grub-installer ignoring the settings in the preseed file.

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