[postgis-users] Installing Postgis-2.1.0

[Hall, Samuel L (Sam)]

Installed a new Postgresql-9.3 and Postgis-2.1.0 on a Ubuntu 12.04 64-bit server that has Postgresql-9.1 and Postgis-2.01 in production. I  followed the directions at http://kdelchev.com/2013/09/upgrade-postgres-9-2-9-3-postgis-2-1/
Everything seemed OK until the end:
template1=# CREATE EXTENSION IF NOT EXISTS postgis;
ERROR:  could not load library "/usr/lib/postgresql/9.3/lib/postgis-2.1.so": /usr/lib/postgresql/9.3/lib/postgis-2.1.so: undefined symbol: GEOS_interruptRequest
template1=# \q

Looking in "/usr/lib/postgresql/9.3/lib/ there is no postgis-2.1.so but there is a rtpostgis-2.1.so

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