Re: [Bug-tar] Question on the one-filesystem option

[R.Vickers]

On Mon, 28 Jul 2014, Gene Heskett wrote:

> However, in one failure path it quoted, there are no softlinks. It simply
> did not like /var/lib/nfs/rpc_pipefs, which actually goes 2 or 3 levels
> deeper, encountering no softlinks as it goes.
>
> So I'm still standing here on my stump and proclaiming that tars "--one-
> file-system" implementation is broken.  And has been since somewhere post
> 1.22.

Hi Gene,

There is a simple explanation for that: /var/lib/nfs/rpc_pipefs IS a 
separate file system. On my system I have:

$ df  /var/lib/nfs/rpc_pipefs
Filesystem     1K-blocks  Used Available Use% Mounted on
rpc_pipefs             0     0         0    - /var/lib/nfs/rpc_pipefs

$ mount | grep pipe
rpc_pipefs on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw,relatime)

So /var/lib/nfs/rpc_pipefs is a mountpoint for a file system of type 
"rpc_pipefs" (whatever that might be). I'm pretty sure it is volatile and 
will be recreated automatically at start-up, so no need to back it up.

Bob