Upstart got some decent adoption, with both Debian, Fedora, and RHEL switching to it by default for a short time. Its downfall was that it didn't offer a great

Upstart got some decent adoption, with both Debian, Fedora, and RHEL switching to it by default for a short time. Its downfall was that it didn't offer a great deal of benefits and kept all the downsides of sysvinit. systemd was superior in every way.