[bug #34807] Permit the configuration of GRUB_PREFIX by the user in grub-mkconfig and grub-install

[Daniel Dehennin]

URL:
  <http://savannah.gnu.org/bugs/?34807>

                 Summary: Permit the configuration of GRUB_PREFIX by the user
in grub-mkconfig and grub-install
                 Project: GNU GRUB
            Submitted by: nebuchadnezzar
            Submitted on: Sat 12 Nov 2011 01:14:15 AM CET
                Category: Configuration
                Severity: Major
                Priority: 5 - Normal
              Item Group: Feature Request
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 
                 Release: Bazaar - trunk
         Reproducibility: Every Time
         Planned Release: None

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Details:

The purpose of this patch is to allow storing multiple
system grub installations on one device and let the automatic
configuration updating tools works.

My use case is the following:

I use usb keys to boot several full luks encrypted systems,
one key per system for now and I want to store all the grub
installations on one device only.

I first try to install into several partitions but on #grub
channel Jordan_U tell me about using the configfile, here is a
working example of my new setup:

- ${usb_key}/grub: master grub with hand written configuration
  to load system specific configurations with "configfile"
  directives.  This configuration is managed on one particular
  system which does the grub-setup calls on upgrade.  I added
  a script '/etc/grub.d/15_my_systems'
  #+begin_src conf
    # [...]
    menuentry 'Svartalfheim' {
            insmod gzio
            insmod part_msdos
            insmod btrfs
            set root='(/dev/sdb,msdos1)'
            search --no-floppy --fs-uuid --set=root
3102b6ea-ee28-44d4-82ba-21ec98631f1e
            echo    'Loading svartalfheim configuration... '
            configfile /svartalfheim/grub/grub.cfg
    }
    menuentry 'Nidhogg' {
            insmod gzio
            insmod part_msdos
            insmod btrfs
            set root='(/dev/sdb,msdos1)'
            search --no-floppy --fs-uuid --set=root
3102b6ea-ee28-44d4-82ba-21ec98631f1e
            echo    'Loading nidhogg configuration... '
            configfile /nidhogg/grub/grub.cfg
    }
    # [...]
  #+end_src

- ${usb_key}/$(hostname -s)/grub: grub installation for each
  host generated by update-grub on each system.  I use
  'GRUB_SETUP=/bin/true' in '/etc/default/grub' to let only
  one host doing the MBR upgrades.

Here is the changelog:

* util/grub-mkconfig.in: Load "${sysconfdir}/default/grub"
  after providing default value of "${GRUB_PREFIX}".

* util/grub-install.in (GRUB_PREFIX): New name of
  "${grubdir}", this permit user configuration with
  "${sysconfdir}/default/grub".
  (grub_setup): Permit to overwrite this variable with
  ${GRUB_SETUP} from user default variable file.

Regards.



    _______________________________________________________

File Attachments:


-------------------------------------------------------
Date: Sat 12 Nov 2011 01:14:15 AM CET  Name:
0001-Make-GRUB_PREFIX-variable-user-configurable.patch  Size: 12kB   By:
nebuchadnezzar
patch to grub-mkconfig.in and grub-install.in
<http://savannah.gnu.org/bugs/download.php?file_id=24357>

    _______________________________________________________

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