> why should we care about Solaris?
It's the only OS that can boot from a ZFS volume and that also has a sane package management system.
It's the only OS that can boot from a ZFS volume and that also has a sane package management system.
In Red Hat-ish distros, I can do "yum update". In Debian-ish distros, I can run "aptitude safe-upgrade". On Debian, I can even do a dist-upgrade and update the box to a new release without having to reinstall it (or boot into the installer). Everything is downloaded, installed and, if needed, restarted. Very close to zero downtime.