I really can't see the wisdom of splitting out /usr from / on a ZFS file system. I had an open bug with Sun in 2009 regarding the separate /var partition, and we went months arguing with support regarding whether or not that was a supported configuration.
The main issue was that single user and failsafe modes were not mounting /var, which made problems with the system difficult to debug when requiring single user mode or failsafe mode. The obvious argument for this config was that logfiles are in /var, so /var being available in single user or failsafe was really required for debugging. Since mounting /var in failsafe or single-user required me to changes the ZFS config, it also created complications if I didn't reset the /var ZFS config. Eventually, support finally relented, and the bug was fixed. My point being is that, a separate /usr ZFS file system has had no support or testing for this type of configuration. Ben On Wed, Sep 4, 2013 at 8:07 PM, Jim Klimov <jimkli...@cos.ru> wrote: > On 2013-09-05 01:33, Christopher X. Candreva wrote: > >> As far as I remember I split if off by hand myself, after installing. The >> thing is, it doesn't work on the new mahcine I'm trying that on. >> >> However, you may have just convinced me NOT to. I have to admit, I'm >> essentially comming from Solaris 8 (I've run some 10 machines, but not >> used >> zfs extensives and haven't used Zones at all). However I think I finally >> understand what boot environments do, why the filesystems are >> consolidated, and what package management has to do with it. >> > > Well, these things all have their reasoning, at least for the default > case, even if I personally disagree and tweak my setups differently ;) > > > Can zones be easily copied to other machines, like VM images ? >> > > Pretty much yes, as long as the global zone OS version is the same on > both machines (there are many kernel-libc-zfs-... interactions that > do require coherent versions to be running). Easiness of such porting > depends on complexity of your customizations - such as delegated ZFS > into the zones vs. also storing them as singular filesystems, network > setup (delegated VNICs probably most common today). But in short - it > works after a little massage :) > > //Jim > > > > ______________________________**_________________ > OpenIndiana-discuss mailing list > OpenIndiana-discuss@**openindiana.org<OpenIndiana-discuss@openindiana.org> > http://openindiana.org/**mailman/listinfo/openindiana-**discuss<http://openindiana.org/mailman/listinfo/openindiana-discuss> > _______________________________________________ OpenIndiana-discuss mailing list OpenIndiana-discuss@openindiana.org http://openindiana.org/mailman/listinfo/openindiana-discuss