Date: Fri, 18 Nov 2011 21:20:43 +0100 From: "Terrence Koeman" <terrence@mediamonks.net> To: "Daniel Staal" <DStaal@usa.net>, "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org> Subject: RE: Shouldn't GNU tar be ignoring /proc with --one-file-system? Message-ID: <c56032f670c5a8458f4ebb02dd75be4d@mediamonks.net> In-Reply-To: <6de19086dd1301d00679b0e51ca10a5b.squirrel@www.magehandbook.com>
next in thread | previous in thread | raw e-mail | index | archive | help
> -----Original Message----- > From: owner-freebsd-questions@freebsd.org [mailto:owner-freebsd- > questions@freebsd.org] On Behalf Of Daniel Staal > Sent: Friday, November 18, 2011 18:00 > To: freebsd-questions@freebsd.org > Subject: Re: Shouldn't GNU tar be ignoring /proc with --one-file- > system? > > > On Fri, November 18, 2011 10:34 am, Kirk Strauser wrote: > > I use Amanda to make nightly backups of a bunch of servers using GNU > tar. > > However, gtar doesn't seem to respect its --one-file-system flag with > > /proc. Amanda runs a variation of this command: > > > > # /usr/local/bin/gtar --create --file - --directory / > > --one-file-system --sparse --ignore-failed-read --totals . > > /dev/null > > /usr/local/bin/gtar: ./proc: file changed as we read it > > > > Before I file a bug report, can anyone think of a legitimate reason > why > > gtar would be touching /proc at all? > > Just a guess, really but: > > /proc is a file on /. /proc/* are files on /proc. The former is still > on > the root filesystem (if only as a directory stub to be used as a > mountpoint), so reading it isn't leaving that filesystem. Reading > anything *in* it would be. > > Just a thought. > However, the file /proc on fs / should not be changing since a filesystem /= proc is mounted over it. The message "./proc: file changed as we read it" i= ndicates whatever /proc it is trying to read did change... -- Regards, T. Koeman, MTh/BSc/BPsy; Technical Monk MediaMonks B.V. (www.mediamonks.com) Please quote relevant replies in correspondence.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?c56032f670c5a8458f4ebb02dd75be4d>