Comment # 1 on bug 1213158 from Li

When using opensuse-leap-image.x86_64-15.5.0-lxc-Build10.57.tar.xz, zypper
didn't work with some packages until I manually replace rpm-ndb with rpm(use
tar to unpack rpm directly into system because rpm installation has failed and
I was faced with a situation where rpm-ndb was uninstalled while rpm was not
installed). 

When using opensuse-leap-dnf-image.x86_64-15.5.0-lxc-dnf-Build10.57.tar.xz,
both dnf and zypper worked fine. But when I try to replace rpm with rpm-ndb,
rpm-ndb just failed to install(and there was no rpm avaliable again).

So I guess it's a problem with rpm-ndb.But this cannot explain why both
opensuse-tumbleweed-image.x86_64-lxc.tar.xz(rpm-ndb) and
opensuse-tumbleweed-dnf-image.x86_64-lxc-dnf.tar.xz(rpm) were failed. Maybe
it's a problem with a specific version of rpm?