Comment # 4 on bug 1172670 from Shung-Hsi Yu

The issue is still present after upgrading to Tumbleweed 20200720, with the
following (possibly) issue-related packages:
* dracut-050+suse.67.g28be2f36-1.1.x86_64
* kernel-default-5.7.9-1.1.x86_64
* kexec-tools-2.0.20-5.2.x86_64
* kdump-0.9.0-13.2.x86_64
* systemd-245.6-2.1.x86_64

After some poking around I found that manual dump succeed with the following
commands:
    systemctl start kdump-mnt1-var.mount
    bash -c 'source /lib/kdump/save_dump.sh' # From kdump-save.service

However, manually starting `systemctl start kdump-save.service` will not work,
it just brings me back the the rescue mode prompt.

This leads me to think that perhaps the issue is not
initrd-switch-root.service, rather, the issue is that kdump-save (or its
dependencies) somehow fail to start.