[bug #39154] Generated grub.cfg contains kernels that lack modules directory

[Alessio Ababilov]

URL:
  <http://savannah.gnu.org/bugs/?39154>

                 Summary: Generated grub.cfg contains kernels that lack
modules directory
                 Project: GNU GRUB
            Submitted by: aababilov
            Submitted on: Mon 03 Jun 2013 04:58:49 PM GMT
                Category: Configuration
                Severity: Major
                Priority: 5 - Normal
              Item Group: Feature Request
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: aababilov
        Originator Email: address@hidden
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 
                 Release: Bazaar - trunk
         Reproducibility: Every Time
         Planned Release: None

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Details:

Consider a computer with several GNU/Linux distros. It has one boot partition
that contains all kernels and initrds and one partition for each distro.

grub2-mkconfig generates a config that allows _every_ available kernel to boot
with the main distro. This is usually undesired since different kernels belong
to different distros.

A simple check whether this kernel belongs to a distro can be verifying its
/lib/modules/$version directory.

Example. We run Debian (vmlinuz-3.2.0-4-amd64) and Gentoo
(vmlinuz-3.8.13-gentoo-05.23). If Gentoo is the main distro, grub2-mkconfig
will allow it to boot with vmlinuz-3.2.0-4-amd64. This boot will fail since
vmlinuz-3.2.0-4-amd64 requires a lot of kernel modules.



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File Attachments:


-------------------------------------------------------
Date: Mon 03 Jun 2013 04:58:49 PM GMT  Name: ensure-kernel-modules.patch 
Size: 1kB   By: aababilov
A proposed patch
<http://savannah.gnu.org/bugs/download.php?file_id=28243>

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