I tried on couple of other systems, and got pretty much the same
problem.
All is needed is to be logged in as an ordinary user, different from
the one owning the sage
installation. The following is on my laptop (sage install owned by
dima, and logged in as guest)

gu...@pasechnik1:~/test$ sage -clone test
Now cloning the current Sage library branch...
hg clone  sage sage-test
Not trusting file /usr/local/src/sage/sage-4.5.1/devel/sage-main/.hg/
hgrc from untrusted user dima, group dima
abort: Permission denied: sage-test
Error cloning
...

Dima


On Jul 28, 7:57 pm, Rob Beezer <[email protected]> wrote:
> I just saw this yesterday.  I had installed Sage from source as a
> normal user (myself), but then began messing around while in a shell
> as root (oops).  If I recall right, the first thing I did was
>
> hg qinit
>
> and then as a result several files had their ownership change to root
> and I started to see the "Not trusting..." message.  When I restored a
> few files to the right ownership (fncache  being one) all was well and
> the message went away.
>
> Maybe poke around in  devel/sage/.hg  and see who owns what?
>
> Rob
>
> On Jul 28, 5:07 am, Dima Pasechnik <[email protected]> wrote:
>
>
>
> > Dear all,
> > any idea what to do with this:
>
> > d...@sage:/scratch/dima$ sage -clone testcvxopt
> > Now cloning the current Sage library branch...
> > hg clone  sage sage-testcvxopt
> > Not trusting file /usr/local/sage/devel/sage-main/.hg/hgrc from
> > untrusted user mvngu, group mvngu
> > abort: Permission denied: sage-testcvxopt
> > Error cloning
>
> > real    0m0.091s
> > user    0m0.070s
> > sys     0m0.010s
> > d...@sage:/scratch/dima$
>
> > Thanks,
> > Dima

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