New AIX 5.3 "multibos" Command to Dual Boot from Same Disk
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The new "multibos" command (AIX 5.3 ML3) provides dual AIX boot from the same rootvg. You can run production on one boot image while installing, customizing or updating the other.
This is conceptually similar to AIX's "alt-disk-install". However, in "alt-disk-install" the boot images must reside on separate disks and separate rootvg's. The "multibos" capability allows both OS images to reside on the same disk/rootvg, avoiding the need for a separate disk.
For more information see