On Fri, 2007-01-12 at 09:19 +0100, Ulrich Windl wrote:
> On 12 Jan 2007 at 4:25, Tim Post wrote:
>
> > On Thu, 2007-01-11 at 19:23 +0000, John Hannfield wrote:
> > > Hi all,
> > >
> > > I'm trying to boot a Centos domU, but when I do a "xm create -c
> > > centos.cfg"
> > > it just hangs, and eventually times out with:
> > >
> > > Error: Device 0 (vif) could not be connected. Hotplug scripts not working.
> > >
> >
> > Ensure that /bin/sh leads to /bin/bash (i.e. readlink /bin/sh ).. if
> > not, ln -s -f /bin/bash /bin/sh
>
> Actually that should be /usr/bin/sh for at least 10 years ;-)
> /bin/cp and /bin/cat are UNIX dinosaurs, just as /bin/sh. Traditionally these
> exist as symbolic links to the updated locations.
Amen! Brother! Can you please CC Redhat, Debian and Knoppix on that?
While your at it, tell them that exiting 0 = good, !0 = bad, or
something other than good, and please apply that logic to everything
found in /bin , /sbin, /usr/bin and /usr/sbin.
>
> >
> > Its quite possible on your system /bin/sh leads to dash, which isn't
> > capable of parsing the hotplug scripts in /etc/xen/scripts, which is the
> > cause of this error.
>
> I'm sure everybody is aware that when using /bin/sh, you may only use the
> features
> of the classic Bourne shell, wile /usr/bin/sh most likely is a POSIX shell,
> and
> "bash" is ... well: "bash". Expecting from /bin/sh to be more capable than
> Bourne
> shell of 15 years ago is a mistake. Personally I'm using POSIX features
> unless I
> absolutely need Bash, but then I specify /bin/bash as Shell.
>
> Sorry for preaching.
No your not preaching, very few realize the shell changes with its
invocation, not many are aware :) Most scripts define the bourne-ish (or
other than perl) interpreter living in /bin, while perl scripts
typically predicate /usr/bin.
So, yeah, 15 or so year time line is correct :) Amazing how things
linger.
>
> Ulrich
>
Best,
--Tim
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