On Feb 21, 2009, at 6:23 AM, mabshoff wrote:

> On Feb 21, 6:10 am, John Cremona <john.crem...@gmail.com> wrote:
>
> Hi John,
>
>> Am I the only person for whom "sage -upgrade" always fails?  It
>> downloads lots of stuff, builds lots of stuff, and leaves me with an
>> un-runnable sage which doesn't know whether it is the old version or
>> the new.
>
> -upgrade is designed to upgrade one clean tree to another clean tree,
> i.e. if you do development in it or use queues for example you will
> run into trouble with some probability.

Some relevant tickets are at

http://trac.sagemath.org/sage_trac/ticket/4759
http://trac.sagemath.org/sage_trac/ticket/4833

- Robert


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