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Boot Disk Management: A Guide for the Solaris™ Operating Environment by David Deeths, John S. Howard

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Chapter 3. Managing Solaris Operating Environment Upgrades

Performing an upgrade of an operating system and the associated system software unbundled products is one of the most time-consuming and error-prone tasks facing system administrators. Further, the users of most mission-critical or datacenter systems cannot afford to have their systems to be taken down for any length of time to perform and test patches and to do software upgrades.

Live Upgrade (LU) provides a mechanism to manage and upgrade multiple on-disk Solaris Operating Environments (OEs). Using LU, you can upgrade an environment without taking the system down. LU provides a framework to upgrade and work within these multiple on-disk environments and reboots into the new Solaris ...

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