[OmniOS-discuss] issue 8984 (fix for 6764 breaks ACL inheritance)

[David Ledger]

On 18 Mar 2018, at 13:58, Andries Annema wrote:

> Thanks Andy, for pointing that out. So it seems to be a "feature" of 
> how rsync handles permissions.
> I've been fiddling around with those rsync options, but I couldn't get 
> it right. That's not a biggy though, I'll take an other approach: use 
> rsync to copy the data over and afterwards correct the ACLs on the 
> target by running commands like:
>
> "find <location> type -f -exec /usr/bin/chmod <file-ACLs> && find 
> <location> type -d -exec /usr/bin/chmod <dir-ACLs> && chmod 
> <file-and-dir-ACLs>"
>
> That will get me where I want to be.
>
> @Paul: both sides are indeed ZFS, but send/receive in this case is not 
> an option, as I'm trying to split a large dataset (with a number of 
> toplevel subdirectories) into multiple smaller datasets (one per 
> toplevel subdir). But the above strategy will get me there, it just 
> requires one extra step.
>
> Cheers,
> Andries

Had to do something similar recently. Did a snapshot + clone of 
original, on original; removed the stuff I didn’t want from the clone; 
then zsf sent to where I wanted it. Removed clone and repeated for the 
next top level. Etc.  Your data size may prevent you from doing that if 
it’s large.

David


> On 2018-03-09 9:59, Andy Fiddaman wrote:
>> On Thu, 8 Mar 2018, Paul B. Henson wrote:
>>
>> ; > From: Andries Annema
>> ; > Sent: Thursday, March 8, 2018 8:06 AM
>> ; >
>> ; > But the issue seems unresolved when:
>> ; >
>> ; > - using rsync to copy stuff over from one dataset to another.
>> ;
>> ; I don't think rsync understands ZFS ACLs? So it is most likely 
>> trying to duplicate the mode bits while copying, using chmod...
>>
>> rsync explicity does do that, it tries to make the permissions on the 
>> target
>> file match the source, including ACLs where it can (I'm also not sure 
>> if it
>> supports NFSv4 ACLs).
>>
>>  From the man page:
>>
>> 	To give new files the destination-default permissions,
>> 	make sure that the --perms option is off and use
>> 	--chmod=ugo=rwX (which ensures that all non-masked bits get
>> 	enabled).
>>
>> So, give this a go:
>>
>> 	 rsync -a --no-p --no-g --chmod=ugo=rwX src/ dst/
>>
>> The extra options need to come after -a.
>>
>> Regards,
>>
>> Andy
>>


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David