Hi Anders, thanks for your report! It seems the issue could lie in the initramfs-tools package not being able to recognize the need of ZFS if MODULES=dep is used - in the kdump initrd, we restrict the modules included to the needed subset, in order to make it smaller and consume less memory from the crashkernel reserved range. The way to achieve that is set the config file for the kdump initrd to make use of MODULES=dep directive.
I'd like to ask some testing from you, so we can verify this theory. Please run the following commands as root user: ls -lh /var/lib/kdump/initrd.img* kdump-config unload rm -f /var/lib/kdump/initrd.img* sed -i 's/MODULES=dep/MODULES=most/g' /etc/kernel/postinst.d/kdump-tools kdump-config load ls -lh /var/lib/kdump/initrd.img* The first command will show you the current kdump initrd images you have, then next commands delete them and recreate one for the current kernel, but using "MODULES=most" to include a bigger set of modules in the kdump initrd. The last command will show the newly created initrd size, please be sure it is bigger than the one you deleted. After that, try a kdump and let's see if it works! Cheers, Guilherme -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1913639 Title: linux-crashdump is not capable of mounting zfs root pools To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1913639/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
