[OpenIndiana-discuss] Split-root installations

[Jim Klimov]

On 2013-11-17 03:50, Jim Klimov wrote:
>    For years I've mentioned "split-root" installations of Solaris-like
> systems in such a way that the root filesystem (the BE) is represented
> by several datasets, such as a split-off /usr dataset. Also there may
> be some datasets shared between boot environments, such as the sinks
> for logs and crashdumps, and not all of these are required to live on
> the rpool at all. There are cases when all such tweaks may be desirable.

WARNING

As discussed in another thread, it was discovered that the SMF methods
for network/physical (both :default and :nwam) use many programs from
/usr, and are executed before the /usr filesystem is actually mounted
in case of a split-root installation. This tanks the NWAM setups, but
the default ones (based on static files in /etc) succeeds for both DHCP
and completely static addressing.

I hope to fix this somehow, but a head-on approach failed: the "root"
filesystem and other FS services depend on svc:/system/identity:node
(indirectly via svc:/system/metainit:default) and that depends on
svc:/network/physical... loop and maintenance... Disabling the metainit
service does not help fix the dependency_cycle condition :\

One approach that would work - a hacky one - is to add an init-script
into /etc/rc2.d to "svcadm restart physical" for the currently enabled
(and maybe even "online") instance of this service.

More sane ideas are welcome ;)
//Jim