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List:       opensolaris-discuss
Subject:    Re: [osol-discuss] Merge other distros to OpenIndiana?
From:       Casper.Dik () Sun ! COM
Date:       2010-09-17 7:31:14
Message-ID: 201009170731.o8H7VErt006013 () dm-holland-01 ! uk ! sun ! com
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>>> * SVR4 packages vs IPS vs whatever packaging scheme Nexenta uses
>>> (there too there's a problem, inasmuch as other tools like beadm and zonecfg
>>> are also involved, although I gather it ought to be possible to come up with
>>> different versions of them for each packaging scheme that some distro or
>>> another uses)
>>>      
>> SVR4 packages support sparse zones, IPS does not.
>>
>>    
>OpenSolaris doesn't have sparse zones, so there nothing to support.
>
>If I remember the threads at the time, they were (rightly) considered 
>unnecessary now we use ZFS for zone roots.
>

I'm not sure I agree with "rightly"; a sparse root zone had several 
advantages which have been lost such as disk footprint but more 
importantly, shared executables, libraries, etc.

Cloning somewhat helps with the disk footprint, but the savings there will 
get lower over time as more and more binaries are upgraded.  We clearly 
have to work on that.  The memory saving of sparse root zones was nothing 
to sniff at.

Casper

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