kexec-tools/99-kdump.conf
Lichen Liu 315f200ee7
Add kdump dracut config
Resolves: RHEL-49590
Upstream: https://github.com/rhkdump/kdump-utils
Conflict: Yes, kexec-tools is split into 3 parts upstream, some changes should
be applied to kdump-utils Makefile, but RHEL-9 kexec-tools doesn't have that.
Also missing upstream commits:
    - 1732a3b(mkdumprd: Omit rdma module)
    - 7fec2f56(mkdumprd: simplify handling of dracut arguments)

commit dacb34341113fa925c15e28a7ce56a80dd370e2f
Author: Lichen Liu <lichliu@redhat.com>
Date:   Tue Nov 5 12:07:42 2024 +0800

    Add kdump dracut config

    In some cases, customizing the first kernel's initrd is necessary by
    modifying the dracut `omit_dracutmodules` options, such as in Bootc
    or CoreOS scenarios [1]. However, these changes can unintentionally
    break existing functionality in kdump. For instance, setting
    `omit_dracutmodules='nfs'` prevents the `nfs` module from being added.

    Additionally, some dracut configurations [2] use
    `dracutmodules+='some modules'` instead of
    `add_dracutmodules+='some modules'`. When `dracutmodules` is non-empty,
    dracut includes only the specified modules, which can result in an
    initrd that lacks necessary modules, causing kdump to fail.

    Dracut upstream support --add-confdir now, kdump can use this
    option when building kdump initramfs.

    This patch moved the hardcoded dracutmodules from mkdumprd to the new
    conf file /lib/kdump/dracut.conf.d/99-kdump.conf, it is easier to check
    and modify to omit or add certain modules. This patch also initialize
    dracutmodules to empty to avoid the influence of other configurations.

    See also:
    [1] https://github.com/rhkdump/kdump-utils/issues/11
    [2] https://issues.redhat.com/browse/RHEL-49590?focusedId=25197134&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-25197134

    Suggested-by: Dave Young <dyoung@redhat.com>
    Suggested-by: Colin Walters <walters@verbum.org>
    Signed-off-by: Lichen Liu <lichliu@redhat.com>

Signed-off-by: Lichen Liu <lichliu@redhat.com>
2024-12-05 11:38:52 +08:00

4 lines
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dracutmodules=''
add_dracutmodules=' kdumpbase '
omit_dracutmodules=' plymouth resume ifcfg earlykdump '