Solaris 10 8/07 Installation Guide: Planning for Installation and Upgrade

Upgrading With Disk Space Reallocation

The upgrade option in the Solaris installation program and the upgrade keyword in the custom JumpStart program provide the ability to reallocate disk space. This reallocation automatically changes the sizes of the disk slices. You can reallocate disk space if the current file systems do not have enough space for the upgrade. For example, file systems might need more space for the upgrade for the following reasons:

The auto-layout feature attempts to reallocate the disk space to accommodate the new size requirements of the file system. Initially, auto-layout attempts to reallocate space, based on a set of default constraints. If auto-layout cannot reallocate space, you must change the constraints on the file systems.

Note –

Auto-layout does not have the ability to “grow” file systems. Auto-layout reallocates space by the following process:

  1. Backing up required files on the file systems that need to change.

  2. Repartitioning the disks on the basis of the file system changes.

  3. Restoring the backup files before the upgrade happens.