Jeff Victor wrote:
Enda o'Connor - Sun Microsystems Ireland - Software Engineer wrote:
Jerry Jelinek wrote:
Jeff Victor wrote:
Is it possible to add an inherit-pkg-dir to a zone's config after
zoneadm ... install? I'm confident the answer is 'no' but just
had to ask.
The man page and docs.sun.com are a little vague on this. They both
say Such resources [those pkgs] are not modifiable or removable
once a zone has been installed with zoneadm. But if you interpret
such resources as the ones that have already been inherited
then the possibility of adding new ones is not mentioned.
Jeff,
The code currently disallows this. See add_resource() in
usr/src/cmd/zonecfg/zonecfg.c.
http://cvs.opensolaris.org/source/xref/on/usr/src/cmd/zonecfg/zonecfg.c
currently at line 1587.
Hi
Basically if say /lib was a local copy in the zone, then adding
inherit-pkg-dir=/lib would mean replacing it with a lofs mount,
which could possibly destabilise the system and so on, and would also
have implications for patches already installed ( basically any
installed patch that touched files in /lib would no longer be
removable, as the undo would try and restore files back to a lofs
mount ).
Also the contents DB in the zone etc would need to be synced and son on.
That is a very good reason to not allow:
1) Removing an inherit-pkg-dir
2) The addition of an inherit-pkg-dir which is related to other
pkg-dir's.
So thats partly the reason for not allowing it, i.e. introduce
instability to the installed zone in many forms.
Understood. For the future: are there reasons that we should *not*
add the ability to add a pkg-dir that is not part of Solaris? This
would allow someone to add access to a 3rd party package which is
already installed in the zone. It would require modifying the zone's
pkg db, etc.
Just curious.
--
Jeff VICTOR Sun Microsystemsjeff.victor @
sun.com
OS AmbassadorSr. Technical Specialist
Solaris 10 Zones FAQ:
http://www.opensolaris.org/os/community/zones/faq
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Hi
It woudl be possible to add a new inherit-pkg-dir, but considering the
risks one woudl have to be very careful to amke sure that the new
inherit-pkg-dir did not intersect with any already installed software
etc in the zone.
Personally if I install software in the global ( say a complier )and
want to make it available selectively to a non-global zone I would do an
add fs to the zonecfg and boot the zone, or if I wanted to avoid zone
reboot do the mounting manually and later add the fs to the zonecfg to
keep everything in sync.
But one would have to be very careful with allowing new inherit-pkg-dir
to an already installed zone in order to avoid the pitfalls.
Enda
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