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Coiby Xu 5b31b099ae Simplify the management of the kernel parameter crashkernel
Currently, kexec-tools only updates the crashkernel to a new default
value only when both two conditions are met,
 - auto_reset_crashkernel=yes in kdump.conf
 - existing kernels or current running kernel should use the old default
   value.

To address seen corner cases, the logic to tell if the second condition
is met becomes quite complex. Instead of making the logic more complex
to support aarch64-64k, this patch drops the second condition to
simplify the management of the crashkernel kernel parameter.

Another change brought by this simplification is kexec-tools will also
set up the kernel crashkernel parameter for a fresh install (previously
it's limited to osbuild).

Note
1. This patch also stop trying to update /etc/default/grub because
   a) it only affects the static file /boot/grub2/grub.cfg
   b) grubby is recommended to change the kernel command-line parameters
      for both Fedora [1] and RHEL9 [2][3]
   c) For the cases of aarch64 and POWER, different kernels could have
      different default crashkernel value.

2. Starting with Fedora 37,  posttrans rpm scriplet distinguish between
   package install and upgrade.

[1] https://fedoraproject.org/wiki/GRUB_2
[2] https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/9/html/managing_monitoring_and_updating_the_kernel/configuring-kernel-command-line-parameters_managing-monitoring-and-updating-the-kernel#changing-kernel-command-line-parameters-for-all-boot-entries_configuring-kernel-command-line-parameters
[3] https://access.redhat.com/solutions/1136173

Signed-off-by: Coiby Xu <coxu@redhat.com>
Reviewed-by: Philipp Rudo <prudo@redhat.com>
2023-05-29 14:40:57 +08:00
spec kdumpctl: fix is_dracut_mod_omitted 2023-04-17 14:49:51 +08:00
tests tests: use .nmconnection to set up test network 2022-11-09 14:07:29 +08:00
.editorconfig dracut-early-kdump: explicitly use bash 2023-01-30 17:37:23 +08:00
.gitignore unit tests: prepare for kdumpctl and kdump-lib.sh to be unit-tested 2022-04-14 11:44:12 +08:00
.shellspec unit tests: add tests for get_grub_kernel_boot_parameter 2022-04-14 11:44:27 +08:00
60-fadump.install fadump: add a kernel install hook to clean up fadump initramfs 2022-12-07 09:42:29 +08:00
60-kdump.install Write to /var/lib/kdump if $KDUMP_BOOTDIR not writable 2021-04-19 16:11:17 +08:00
92-crashkernel.install Prefix reset-crashkernel-{for-installed_kernel,after-update} with underscore 2022-10-20 13:54:10 +08:00
98-kexec.rules Make udev reload rules quiet during bootup 2018-12-06 17:44:03 +08:00
98-kexec.rules.ppc64 Stop reloading kdump service on CPU hotplug event for FADump 2021-03-10 16:24:42 +08:00
crashkernel-howto.txt remind the users to run zipl after calling grubby on s390x 2022-08-03 11:09:55 +08:00
dracut-early-kdump-module-setup.sh dracut-early-kdump-module-setup.sh: install xargs and kdump-lib-initramfs.sh 2021-12-27 09:16:19 +08:00
dracut-early-kdump.sh kdumpctl: merge check_current_{kdump,fadump}_status 2023-01-30 17:37:23 +08:00
dracut-fadump-init-fadump.sh fadump-init: clean up mount points properly 2021-06-30 17:28:45 +08:00
dracut-fadump-module-setup.sh fadump: isolate fadump initramfs image within the default one 2021-06-29 21:35:58 +08:00
dracut-kdump-capture.service kdump-capture.service: switch to journal for stdout 2022-04-02 16:24:32 +08:00
dracut-kdump-emergency.service Merge kdump-error-handler.sh into kdump.sh 2021-09-14 03:25:54 +08:00
dracut-kdump-emergency.target kdump-emergency: fix "Transaction is destructive" emergency failure 2017-03-31 11:54:30 +08:00
dracut-kdump.sh Show how much time kdump has waited for the network to be ready 2023-04-15 06:39:17 +08:00
dracut-module-setup.sh dracut-module-setup: remove dead source_ifcfg_file 2023-04-17 14:49:51 +08:00
dracut-monitor_dd_progress monitor-dd-progress fix 2013-06-25 16:45:59 +08:00
early-kdump-howto.txt Improves the early-kdump-howto.txt document in several points: 2020-03-12 23:31:34 +08:00
fadump-howto.txt update fadump-howto 2022-04-24 09:35:05 +08:00
gen-kdump-conf.sh kdump.conf: use a simple generator script to maintain 2022-11-25 17:16:09 +08:00
gen-kdump-sysconfig.sh sysconfig: add zfcp.allow_lun_scan to KDUMP_COMMANDLINE_REMOVE on s390 2023-03-13 15:30:00 +08:00
kdump-dep-generator.sh logger: source the logger file individually 2021-01-20 14:13:44 +08:00
kdump-in-cluster-environment.txt Add fence_kdump support for generic clusters 2014-04-03 14:43:06 +08:00
kdump-lib-initramfs.sh kdump-lib-initramfs: remove is_fs_dump_target 2023-04-17 14:49:51 +08:00
kdump-lib.sh kdump-lib: fix the matching pattern for debug-kernel 2023-05-23 14:59:09 +08:00
kdump-logger.sh Add header comment for POSIX compliant scripts 2021-09-15 23:11:37 +08:00
kdump-migrate-action.sh kdump/ppc64: rebuild initramfs image after migration 2021-07-21 10:53:59 +08:00
kdump-restart.sh kdump/ppc64: rebuild initramfs image after migration 2021-07-21 10:53:59 +08:00
kdump-udev-throttler Make udev reload rules quiet during bootup 2018-12-06 17:44:03 +08:00
kdump.conf.5 Simplify the management of the kernel parameter crashkernel 2023-05-29 14:40:57 +08:00
kdump.service kdumpctl: Move temp file in get_kernel_size to global temp dir 2023-05-16 09:21:13 +08:00
kdumpctl Simplify the management of the kernel parameter crashkernel 2023-05-29 14:40:57 +08:00
kdumpctl.8 add man documentation for kdumpctl get-default-crashkernel 2022-04-24 09:35:05 +08:00
kexec-kdump-howto.txt update kexec-kdump-howto 2022-04-24 09:35:05 +08:00
kexec-tools-2.0.23-s390_handle_R_390_PLT32DBL_reloc_entries_in_machine_apply_elf_rel_.patch s390: handle R_390_PLT32DBL reloc entries in machine_apply_elf_rel() 2022-01-26 08:25:43 +08:00
kexec-tools-2.0.26-makedumpfile-Fix-wrong-exclusion-of-slab-pages-on-Linux-6.2.patch makedumpfile: Fix wrong exclusion of slab pages on Linux 6.2-rc1 2023-01-30 17:37:23 +08:00
kexec-tools.spec Simplify the management of the kernel parameter crashkernel 2023-05-29 14:40:57 +08:00
live-image-kdump-howto.txt Revert "kdumpctl: filter 'root' kernel parameter when running in live images" 2017-04-11 16:03:12 +08:00
mkdumprd mkdumprd: call dracut with --add-device to install the drivers needed by /boot partition automatically for FIPS 2023-05-29 10:20:11 +08:00
mkdumprd.8 Doc: improve mkdumprd man page 2020-12-11 14:05:08 +08:00
mkfadumprd mkfadumprd: drop unset globals from debug output 2023-01-30 17:37:23 +08:00
README README: Add a README file 2014-04-02 10:45:36 +08:00
sources Release 2.0.26-1 2022-12-22 12:55:14 +08:00
zanata-notes.txt Add a notes for zanata process 2012-12-05 01:23:09 -05:00

Adding a patch to kexec-tools
=============================
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