On 6 dec 2011, at 14:02, Jerry Levan <[email protected]> wrote:

> Hi,
> 
> I used an attached disk for several weeks for a time machine backup 
> destination.
> 
> After I added a NAS I no longer had any use for the older Time Machine backup.
> 
> The backup is heavily protected by ACLs and I don't seem to be able to find
> a magic command line that will recursively strip the ACL protections so I
> can delete the 'whole thing'.
> 
> Google seemed to think that there is a function 'fsaclctl' that can remove
> ACLs from a device but it does not appear to exist in mac osx 10.7.2 client.
> 
> Nuking the entire partition via disk utility seems a bit heavy handed…
> 
> Any suggestions?
> 
One can let such a disk be configured such as all filepermissons will be 
ignorded I belive? And it might be possible from an info panel in Finder? Click 
on the disk and do 'cmd + I' to see the info panel of the volume. At the bottom 
you might find this option that says something like 'no filepermissions'?

I'm not in front of any computer at the moment and trying to remember how it 
works. So if I'm wrong here you will notice it in the info panel.

Otherwise you should look at 'man chmod' in a terminal window and use your 
favourite shell.
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