On Jul 22, 2010, at 5:13 AM, Andrew Gabriel wrote:

> Gerald Jelinek wrote:
>> Zone boot fails if share references exist on its root dataset VFS with EBUSY.
>>  
> 
> This sounds overly restrictive and might unnecessarily bite someone's 
> existing infrastructure.
> Could you not instead have the sharing of the zone root from inside the zone 
> rejected, if it is already shared from the global zone?
> That can't break any existing infrastructure.
> 
> -- 
> Andrew Gabriel


The administrator will need to alter the existing infrastructure. The current 
zoneadm implementation will unshare the root prior to booting the zone. This 
simply adds protection to stop the global zone from inadvertently re-sharing, 
and closes a race between zoneadm unshare and zone boot, since the share 
ownership will change. 

Robert.
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