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Re: [Bug-tar] [BULK] Re: Question on the one-filesystem option
From: |
Joi L. Ellis |
Subject: |
Re: [Bug-tar] [BULK] Re: Question on the one-filesystem option |
Date: |
Mon, 28 Jul 2014 15:00:25 +0000 |
I've been doing some googling, and the rpc_pipefs is a feature/function/product
of nfs4. It's used for communicating between nfs4 servers and clients and
doesn't contain anything you need to back up, it's all dynamically generated as
part of client/server interactions. I'd just put that --one-file-system
parameter back on your tar command and ignore the whole tree. I wouldn't
attempt restoring any of that data into a client filesystem, you'd just muck up
your existing nfs mounts.
--
Joi Owen
System Administrator
Pavlov Media, Inc
-----Original Message-----
From: address@hidden [mailto:address@hidden On Behalf Of Gene Heskett
Sent: Monday, July 28, 2014 4:09 AM
To: address@hidden
Cc: address@hidden; address@hidden
Subject: [BULK] Re: Question on the one-filesystem option
On Monday 28 July 2014 04:53:47 address@hidden did opine And Gene did reply:
> 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
Crazy. There is no evidence of that shown by an ls -l being executed anyplace
in that tree.
I'll do a similar df check on the other failure points. When I am fully awake.
No one would accuse me of that at 5am local.
Cheers, Gene Heskett
--
"There are four boxes to be used in defense of liberty:
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-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>
US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS