+++ This bug was initially created as a clone of Bug #1918493 +++ Description of problem: In Fedora CoreOS versions 33.20210104.3.0 and later, the /boot directory is mounted read-only. Because of this, kdump is not able to place the generated kdump initrd next to the kernel image in `KDUMP_BOOTDIR`. Possible solutions would be to make the location of the generated kdump initrd configurable, or to remount /boot writable whenever kdump needs to write to it. How reproducible: Always Steps to Reproduce: 1. systemctl start kdump.service Actual results: kdump: /boot/ostree/fedora-coreos-b75b97c31a6cd29bf45d4ba7ca6d5b5d8ee8592e909b18c3b381772a5db7e00b does not have write permission. Can not rebuild /boot/ostree/fedora-coreos-b75b97c31a6cd29bf45d4ba7ca6d5b5d8ee8592e909b18c3b381772a5db7e00b/initramfs-5.10.7-200.fc33.x86_64kdump.img Expected results: Crash recovery kernel arming succeeds. Additional info: https://issues.redhat.com/browse/GRPA-3209 --- Additional comment from Kairui Song on 2021-04-28 20:38:06 UTC --- Fixed in latest rawhide build.
In short, we need a backport of https://src.fedoraproject.org/rpms/kexec-tools/c/75bdcb7399b6fe48032a8db534e18b01206601bc?branch=rawhide in F34 to fix kdump enablement in FCOS: https://github.com/coreos/fedora-coreos-config/pull/1212
FEDORA-2021-bba60cc45a has been submitted as an update to Fedora 34. https://bodhi.fedoraproject.org/updates/FEDORA-2021-bba60cc45a
FEDORA-2021-bba60cc45a has been pushed to the Fedora 34 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --advisory=FEDORA-2021-bba60cc45a` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2021-bba60cc45a See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-2021-bba60cc45a has been pushed to the Fedora 34 stable repository. If problem still persists, please make note of it in this bug report.