We have a system that came with pg 8.1.9. When I try to uninstall those RPMs, it works for all the rpms except for libs: > rpm -ev postgresql-libs-8.1.9-1.el5 error: Failed dependencies: libpq.so.4 is needed by (installed) apr-util-1.2.7-6.i386 I am not sure what this is about and how to uninstall it. I cannot leave the "libs" rpm because with it on the system, the equivalent for 8.2.4 will not install. For instance, while installing the compatibility stuff prior to 8.2.4 -- > rpm -Uhv compat-postgresql-libs-4-1PGDG.rhel5.i686.rpm warning: waiting for transaction lock on /var/lib/rpm/__db.000 Preparing... ########################################### [100%] file /usr/lib/libpq.so.4 from install of compat-postgresql-libs-4-1PGDG.rhel5 conflicts with file from package postgresql-libs-8.1.9-1.el5 file /usr/lib/libpq.so.4.1 from install of compat-postgresql-libs-4-1PGDG.rhel5 conflicts with file from package postgresql-libs-8.1.9-1.el5 How does one resolve this? How can I uninstall "libpg.so.4"? I am on CentOS 5, and I'm using the rpms for Red Hat ES 5. Thanks for any pointers! ---------------------------(end of broadcast)--------------------------- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match