Re: [zones-discuss] zoneadm wants more ZFS when only ZFS exists

2011-02-05 Thread Evan Layton

On 2/4/11 10:32 PM, Darren Reed wrote:

On a test system that is using only ZFS, I'm trying to create a zone
but it keeps failing with:
netvirt-d1 ~# zoneadm -z exclusivetestzone1 install
ERROR: the zonepath must be a ZFS dataset.
The parent directory of the zonepath must be a ZFS dataset so that the
zonepath ZFS dataset can be created properly.

I don't get it. This restriction never used to exist.

Why do I need to do something extra that is mandatory?

Further to this, there's a script on Oracle's website here:
http://download.oracle.com/docs/cd/E19963-01/821-1460/z.conf.start-1/index.html

that also fails to configure  create a zone that can be installed with b154 
bits.

To give an example (/tmp/ozone is the script from the above page)...

/ is rpool/ROOT/solaris
# zfs create rpool/ROOT/solaris/zone
# zfs set mountpoint=/zone rpool/ROOT/solaris/zone


The first thing I can see is that you are attempting to create a zone within the 
root pool's ROOT dataset which is not supported. If you had run zoneadm install 
directly you should have seen something like the following error message.


admin@snv-158:/# zoneadm -z zone2 install
ERROR: Installing a zone inside of the root pool's 'ROOT' dataset is 
unsupported.

The interesting thing here is that when I run this by hand I get this message 
the first time. However if I then uninstall the zone and retry to install it I 
get the error that you're seeing:


admin@snv-158:/# zoneadm -z zone2 uninstall
Are you sure you want to uninstall zone zone2 (y/[n])? y
admin@snv-158:/# zoneadm -z zone2 install
ERROR: the zonepath must be a ZFS dataset.
The parent directory of the zonepath must be a ZFS dataset so that the
zonepath ZFS dataset can be created properly.

I think this is because the zoneadm uninstall is removing the offending dataset 
and if you were to add that back in (but don't because it's not correct) you 
would see the original error.



...

# zoneadm -z exclusivetestzone1 uninstall
Are you sure you want to uninstall zone exclusivetestzone1 (y/[n])? y
# zoneadm -z exclusivetestzone1 install
ERROR: the zonepath must be a ZFS dataset.
The parent directory of the zonepath must be a ZFS dataset so that the
zonepath ZFS dataset can be created properly.
# cat /zone/exclusivetestzone1.config
create
set zonepath=/zone/exclusivetestzone1

As you can see from this, the parent of the zonepath is /zone and that
is a freshly created ZFS dataset. Furthermore, / which is the parent of
/zone is also a ZFS dataset. Having /zone as a directory within / and
not a dataset also results in the above error.

Between zoneadm and zonecfg, I can't see anything that instructs me on
how to resolve this. Am I missing something?


Try changing the dataset you're using to something more like rpool/zones and try 
again.


For example doing the following should work (I don't know what other steps your 
script is doing...):

# zfs create -o mountpoint=/zones rpool/zones
# zonecfg -z zone1
 create
 set zonepath=/zones/zone1
 commit
 exit
# zoneadm -z zone1 install

-evan



Darren

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Re: [zones-discuss] zoneadm wants more ZFS when only ZFS exists

2011-02-05 Thread Mike Gerdts
On Fri, Feb 4, 2011 at 11:32 PM, Darren Reed darren.r...@oracle.com wrote:
 On a test system that is using only ZFS, I'm trying to create a zone
 but it keeps failing with:
 netvirt-d1 ~# zoneadm -z exclusivetestzone1 install
 ERROR: the zonepath must be a ZFS dataset.
 The parent directory of the zonepath must be a ZFS dataset so that the
 zonepath ZFS dataset can be created properly.

 I don't get it. This restriction never used to exist.

Zones need to be on ZFS with a particular dataset layout so that boot
environments can be managed with beadm, pkg, etc.  That is, zone boot
environments have very similar requirements that global zone boot
environments have.

 Why do I need to do something extra that is mandatory?

If the parent of the zonepath is itself a ZFS dataset, it does happen
automatically.


 Further to this, there's a script on Oracle's website here:
 http://download.oracle.com/docs/cd/E19963-01/821-1460/z.conf.start-1/index.html

 that also fails to configure  create a zone that can be installed with b154
 bits.

 To give an example (/tmp/ozone is the script from the above page)...

 / is rpool/ROOT/solaris
 # zfs create rpool/ROOT/solaris/zone
 # zfs set mountpoint=/zone rpool/ROOT/solaris/zone

That needs to be fixed.  It would cause zone boot environments to be
contained within global zone boot environments.  As new global zone
boot environments are created, you will end up with roughly 2x the
number of non-global zone BEs.  I normally use:

zfs create -o mountpoint=/zones rpool/zones

and would appreciate feedback as to whether others feel that this
should be the default behavior if the zonepath is /zones/zonename
and /zones doesn't already exist.

 As you can see from this, the parent of the zonepath is /zone and that
 is a freshly created ZFS dataset. Furthermore, / which is the parent of
 /zone is also a ZFS dataset. Having /zone as a directory within / and
 not a dataset also results in the above error.

 Between zoneadm and zonecfg, I can't see anything that instructs me on
 how to resolve this. Am I missing something?

-- 
Mike Gerdts
http://mgerdts.blogspot.com/
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