Marlanne DeLaSource writes: > What are the advantages/disadvantages of creating a zone with the -b > option (like in the excellent page here > http://users.tpg.com.au/bdgcvb/zones.html by Brendan Gregg). It > duplicates a lot of space but what can be done that can't be with a > normal zone (called a small zone in the page quoted above).
It allows users inside the zone to write to the directories (/lib, /platform, /sbin, and /usr) that would otherwise be inherited from the global zone. When a directory is inherited, it's read-only inside the zone, even to all-powerful root. (Though root may, of course, mount other things underneath.) This can be helpful with non-Sun software that (nontheless and despite filesystem(5)) installs to /usr. For what it's worth, the two models are normally called "sparse root" and "whole root." > Is it supported ? Everything documented in man pages (such as the -b option) is supported, unless somehow explicitly disclaimed. -- James Carlson, KISS Network <[EMAIL PROTECTED]> Sun Microsystems / 1 Network Drive 71.232W Vox +1 781 442 2084 MS UBUR02-212 / Burlington MA 01803-2757 42.496N Fax +1 781 442 1677 _______________________________________________ zones-discuss mailing list zones-discuss@opensolaris.org
