[Port-configurability] Non-root instances and multiple sudo instances in a box cannot be 'offline' upgraded

Scenario
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As of today, we do not support offline 'upgrade' per se for packages installed in non-root/sudo users. Upgrades are usually handled by package managers. Since these are absent in non-root users and rpm cannot handle more than a a single package upgrade(if there are many instances running), offline upgrades are not supported (confirmed with Bin).

ALL non-root installations will be affected by this limitation. Although a single instance running on a box under sudo user can be offline upgraded, it cannot be extended to more than one such instance.

This is important

Workaround
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• Online upgrade (swap with nodes running latest build, take old nodes down and do clean install)
• Backup data and restore after fresh install (cbbackup and cbrestore)

Note : At this point, these are mere suggestions and both these workarounds haven't been tested yet.