Public bug reported: Kexec tool throws following errors if crashkernel is reserved beyond 4GB of system memory.
bootargs: crashkernel=1G@4G Ubuntu $ kexec -p /boot/vmlinuz-`uname -r` --initrd=/boot/initrd.img-`uname -r` --reuse-cmdline $ kexec: elfcorehdr doesn't fit cells-size. $ kexec: setup_2nd_dtb failed. $ kexec: load failed. $ Cannot load /boot/vmlinuz-5.4.0-rc4+ It looks to be grub issue. Refer discussion: https://edk2.groups.io/g/devel/topic/39480086#49583 ** Affects: grub2 (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1851190 Title: Ubuntu 18.04: kexec-tool shows "kexec: elfcorehdr doesn't fit cells- size" if crashkernel reserved beyond 4GB To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1851190/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
