[postgis-users] Upgrade to postgis 2.1 : error message

[laurent]

Hello,

Thanks to your following message, i'm following the part of the doc
regarding the upgrade called " 
2.9.1.2. Soft Upgrade 9.1+ using extensions ". 
In a 1st time i tied to tape this sql query : 

ALTER EXTENSION postgis UPDATE TO "2.1.0SVN";
ALTER EXTENSION postgis_topology UPDATE TO "2.1.0SVN";

But i received an error message saying
/--------------------------------------------------
ERREUR:  l'extension « postgis » n'a pas de chemin de mise à jour pour aller
de la version « 2.0.0 » à la version « 2.1.0SVN »


********** Erreur **********

ERREUR: l'extension « postgis » n'a pas de chemin de mise à jour pour aller
de la version « 2.0.0 » à la version « 2.1.0SVN »
État SQL :22023
------------------------------------------------/

So i tried to backup my db thanks to pg_dump. But i received this following
error message : 

SS_error_dump.JPG
<http://postgis.17.n6.nabble.com/file/n5002687/SS_error_dump.JPG>  


This error message is trange because i try to save my .sql file toward a
drive with 2,91 To available...

In advance, thank you. 






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