On Mon, 2012-12-03 at 14:10 -0500, Dwight Engen wrote: > On Mon, 03 Dec 2012 13:55:41 -0500 > "Michael H. Warfield" <m...@wittsend.com> wrote: > > > On Mon, 2012-12-03 at 12:18 -0600, Serge Hallyn wrote: > > > Quoting Dwight Engen (dwight.en...@oracle.com): > > > > On Mon, 3 Dec 2012 10:47:26 -0600 > > > > Serge Hallyn <serge.hal...@canonical.com> wrote: > > > > > > > > > Quoting Dwight Engen (dwight.en...@oracle.com): > > > > > > On Mon, 3 Dec 2012 10:04:13 -0600 > > > > > > Serge Hallyn <serge.hal...@canonical.com> wrote: > > > > > > > > > > > > > However one question is: is -H ubiquitous? > > > > > > > > > > > > I'm wondering why we don't just use the cp -a? It seems like > > > > > > cp is far more likely to be installed than rsync? rootfs_path > > > > > > probably doesn't already exist so it not like rsync is going > > > > > > to be faster?
> One reason I commented on this was that I had noticed the use of rsync
> to do this copy in other places as well, namely just about every
> template that caches a rootfs, so we might want to consider replacing
> those as well. Note that I'm not an rsync hater at all :) its a great
> tool and I use it all the time for cross machine mirroring, backups
> etc.. but if all we're doing is local file system directory copies, I
> think there are benefits to reducing our external tool dependencies.
I think the reason for this is historical and portability more than any
thing else (neither of which are really applicable to this project). If
you go to AIX or HP/UX or Solaris, the stock "cp" is just not going to
support -a or -T. I'm not sure about the current lines of
{Free,Open,Net}BSD. So, ultimately, rsync just became the defacto
standard for doing these sorts of things like cpio use to be back in the
dark ages for some of us old fossils. :-) I'm not even sure when or
where the "-a" option was introduced to cp but it was a long time before
I even became aware of it. It's always good to learn something new here
though! :-)=)
Thanks!
Regards,
Mike
--
Michael H. Warfield (AI4NB) | (770) 985-6132 | m...@wittsend.com
/\/\|=mhw=|\/\/ | (678) 463-0932 | http://www.wittsend.com/mhw/
NIC whois: MHW9 | An optimist believes we live in the best of all
PGP Key: 0x674627FF | possible worlds. A pessimist is sure of it!
signature.asc
Description: This is a digitally signed message part
------------------------------------------------------------------------------ Keep yourself connected to Go Parallel: BUILD Helping you discover the best ways to construct your parallel projects. http://goparallel.sourceforge.net
_______________________________________________ Lxc-devel mailing list Lxc-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lxc-devel
