Для openSUSE Factory zSystems запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/OBS:Server:Unstable/openSUSE_Factory_zSystems/OBS:Server:Unstable.repo
zypper refresh
zypper install rubygem-json_refs
Для openSUSE Factory PPC запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/OBS:Server:Unstable/openSUSE_Factory_PPC/OBS:Server:Unstable.repo
zypper refresh
zypper install rubygem-json_refs
Для openSUSE Factory ARM запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/OBS:Server:Unstable/openSUSE_Factory_ARM/OBS:Server:Unstable.repo
zypper refresh
zypper install rubygem-json_refs
Для openSUSE Factory запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/OBS:Server:Unstable/openSUSE_Factory/OBS:Server:Unstable.repo
zypper refresh
zypper install rubygem-json_refs
Для 16.0 запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/OBS:Server:Unstable/16.0/OBS:Server:Unstable.repo
zypper refresh
zypper install rubygem-json_refs
Для 15.7 запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/OBS:Server:Unstable/15.7/OBS:Server:Unstable.repo
zypper refresh
zypper install rubygem-json_refs
Для 15.6 запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/OBS:Server:Unstable/15.6/OBS:Server:Unstable.repo
zypper refresh
zypper install rubygem-json_refs