[OpenIndiana-discuss] How to determine what to do with a copied member of zfs fs

[epektasis]

On Sat, Nov 14, 2020 at 11:03:53AM -0500, Harry Putnam wrote:
> [Sorry to ramble a bit, trying to get across what I've run into. Not
> sure what is important to include to allow anyone to help]
> 
> While attempting to clean up some kind of error involving one zfs fs
> 
> p0/vb2/vm2/d0
> 
> Do is a running Vbox vm that I don't want to harm.
> 
> I copied all of vm2 to vm2X including the D0 vm.
> 
> Now I've got the p0 tree in shape I wanted to delete  the copy
> of my vm in vm2X/d0
> 
> I ran `sudo rm -rf vm2X' .. some files and directories in there (not inside d0)
> were deleted as expected but when the process got to ./vm2X/d0 I get
> the message:
> 
> ,----
> | sudo rm -rf vm2X
> | rm: cannot remove 'vm2X/d0': Device busy
> `----
> 
> Makes me think there may be some kind of link between ./vm2/d0 and the
> copied dir ./vm2X/d0 and now I'm a bit afraid to try to delete it
> 
> zfs list -r p0 shows more than needs listing here .. but, p0/vb2/vm2/p0
> shows up as a zfs fs as expected and nothing about vm2X/d0  also as
> expected.
> 
> So what is going on with that copied VM, is it safe to continue to try
> deleting it?
> 
> More importantly is there a way to determine what is going on with
> ./vm2x/d0 .. that makes it so it cannot be deleted??
> 
Usually when I get a message like that, I've issued the rm command while in
the subdirectory I want removed.
	e.