[Bug 1787630] Re: [FFe] Include HTTP support in pre-build GRUB module

[Brian Murray]

Hello Lee, or anyone else affected,

Accepted grub2 into bionic-proposed. The package will build now and be
available at https://launchpad.net/ubuntu/+source/grub2/2.02-2ubuntu8.13
in a few hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested and change the tag from
verification-needed-bionic to verification-done-bionic. If it does not
fix the bug for you, please add a comment stating that, and change the
tag to verification-failed-bionic. In either case, without details of
your testing we will not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

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

** Changed in: grub2-signed (Ubuntu)
       Status: New => Fix Released

** Changed in: grub2 (Ubuntu Bionic)
       Status: New => Fix Committed

** Tags added: verification-needed-bionic

** Changed in: grub2-signed (Ubuntu Bionic)
       Status: New => Fix Committed

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https://bugs.launchpad.net/bugs/1787630

Title:
  [FFe] Include HTTP support in pre-build GRUB module

Status in grub2 package in Ubuntu:
  Fix Released
Status in grub2-signed package in Ubuntu:
  Fix Released
Status in grub2 source package in Bionic:
  Fix Committed
Status in grub2-signed source package in Bionic:
  Fix Committed
Status in grub2 source package in Cosmic:
  Fix Committed

Bug description:
  [Impact]
  Required for MAAS to use HTTP transport to provide files for grub2.

  [Test case]
  0) Provide kernel and initrd on an HTTP server on the network.
  1) Boot from the network in UEFI mode using grub's grubnet<arch>.efi binary.
  2) Run the following commands:

   linuxefi http://<ip of http server>/<path to kernel>  <kernel command-line parameters>
   initrdefi http://<ip of http server>/<path to initrd>
   boot

  Verify that the system is able to correctly retrieve the kernel and
  initrd files from the HTTP server, and that the system boots normally.

  [Regression potential]
  None. This makes an additional module available for use in the grubnet<arch>.efi pre-built and signed UEFI binaries for grub; it does not otherwise affect other pre-built UEFI images, does not change grub code, and is not used unless explicitly configured to do so by a custom grub configuration file (not in use by default).

  ---

  [Description]
  Grub supports booting files over the network via both FTP/HTTP. However, the Ubuntu package is not built with the grub HTTP modules. Enabling this would allow grub to obtain files over HTTP (such as initrd/kernel).

  [Rationale]
  Enabling HTTP support for Grub would allow MAAS to use such functionality to boot files over the network with HTTP. This allows for improvement performance (vs using ftp) and for better security.

  MAAS would use this to download kernel and initrd over HTTP instead of
  FTP at first for performance improvements.

  [Original bug report]

  GRUB has builtin support for HTTP via http.mod. This module is not
  being included in the prebuild grubnetx64.efi. All that should be
  required is adding the http module. I also suggest building
  grubnetx64.efi using GRUB modules to include lvm and RAID support this
  will allow grubnetx64.efi to local boot in all situations.

  --- build-efi-images	2018-08-17 10:50:35.124311043 -0700
  +++ build-efi-images.new	2018-08-17 10:50:59.270661126 -0700
  @@ -148,8 +148,9 @@
    raid5rec
    raid6rec
    "
  -NET_MODULES="$CD_MODULES
  +NET_MODULES="$GRUB_MODULES
    tftp
  +	http
    "

   "$grub_mkimage" -O "$platform" -o "$outdir/gcd$efi_name.efi" \

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