Resolves: bz2060774
Upstream: fedora
Conflict: none
commit 37f4f2c1f6
Author: Coiby Xu <coxu@redhat.com>
Date: Tue Feb 15 13:24:19 2022 +0800
address the case where there are multiple values for the same kernel arg
There is the case where there are multiple entries of the same parameter on
the command line, e.g.
GRUB_CMDLINE_LINUX="crashkernel=110M crashkernel=220M fadump=on crashkernel=330M".
In such an situation _update_kernel_cmdline_in_grub_etc_default only
updates/removes the last entry which is usually not what you want as the
kernel (for crashkernel) takes the last entry it can find.
Thus make sure the case with multiple entries of the same parameter is
handled properly by removing all occurrences of given parameter first.
Note
1. sed command group and conditional control has been used to get rid of
grep.
2. Fully supporting kernel cmdline as documented in
Documentation/admin-guide/kernel-parameters.rst is complex and in
foreseeable future a full implementation is not needed. So simply
document the unsupported cases instead.
Fixes: 140da74 ("rewrite reset_crashkernel to support fadump and to used by RPM scriptlet")
Reported-by: Philipp Rudo <prudo@redhat.com>
Suggested-by: Philipp Rudo <prudo@redhat.com>
Reviewed-by: Philipp Rudo <prudo@redhat.com>
Signed-off-by: Tao Liu <ltao@redhat.com>
Adding a patch to kexec-tools
=============================
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