RedHat6.2 - postgres 7.1.2 lib confusion

Hello all,

I've trawled the archives and found stuff similar to my problems but
(as usual) not quite...

Basically, I am trying to move from 6.5.3 to 7.1.2 on RedHat 6.2 with
as little mucking around with RH as possible. I have an upgraded rpm
(3.0.5) so I was able to fetch the 6.2 rpms from the ftp area and
kicked off with:

postgresql-7.1.2-4PGDG.i386.rpm
postgresql-docs-7.1.2-4PGDG.i386.rpm
postgresql-libs-7.1.2-4PGDG.i386.rpm
postgresql-server-7.1.2-4PGDG.i386.rpm

Immediately calling rpm -Uvh on these gives a dependency
problem:error: failed dependencies:
    libcrypto.so.0 is needed by postgresql-7.1.2-4PGDG
    libssl.so.0 is needed by postgresql-7.1.2-4PGDG
    libcrypto.so.0 is needed by postgresql-libs-7.1.2-4PGDG
    libssl.so.0 is needed by postgresql-libs-7.1.2-4PGDG
    libcrypto.so.0 is needed by postgresql-server-7.1.2-4PGDG
    libssl.so.0 is needed by postgresql-server-7.1.2-4PGDG

I find this odd because I have libcrypto.so.02 and libssl.. Heres my
/usr/lib :

lrwxrwxrwx    1 root     root           14 May 23  2001
/usr/lib/libcrypto.so -> libcrypto.so.0*
lrwxrwxrwx    1 root     root           18 May 16  2001
/usr/lib/libcrypto.so.0 -> libcrypto.so.0.9.6*
-rwxr-xr-x    1 root     root         876k Apr 18  2001
/usr/lib/libcrypto.so.0.9.6*
-rw-r--r--    1 root     root         244k Nov 10  2000
/usr/lib/libssl.a
lrwxrwxrwx    1 root     root           11 May 23  2001
/usr/lib/libssl.so -> libssl.so.0*
lrwxrwxrwx    1 root     root           15 May 16  2001
/usr/lib/libssl.so.0 -> libssl.so.0.9.6*
-rwxr-xr-x    1 root     root         198k Apr 18  2001
/usr/lib/libssl.so.0.9.6*

So I carried on with a --nodeps. But now I felt a little unsure. Is
this yet more evidence of older versions of rpm being a complete PITA?
 Perhaps its the version of the rpm executable conflicting with the
actual rpm archives..

Anyway, calling the /etc/rc.d/init.d/postgres start seemed to
initialise the database but failed on starting the service.. I
therefore thought I would start postmaster manually (assuming that the
init script had already called initdb) and got this upon calling
postmaster -D /usr/share/pgsql :

postmaster does not find the database system.
    Expected to find it in the PGDATA directory "/usr/share/pgsql",
    but unable to open file "/usr/share/pgsql/global/pg_control": No such
file or directory

All that is in here are the sample versions of the various conf files
i.e.

drwx------    2 postgres postgres     4096 Dec  4 13:44 backup
-rw-r--r--    1 root     root          770 Jun 13 22:36 global.bki
-rw-r--r--    1 root     root           28 Jun 13 22:36
global.description
-rw-r--r--    1 root     root         7399 Jun 13 22:36
pg_hba.conf.sample
-rw-r--r--    1 root     root         1118 Jun 13 22:36
pg_ident.conf.sample
-rw-r--r--    1 root     root         3137 Jun 13 22:36
postgresql.conf.sample
-rw-r--r--    1 root     root       196935 Jun 13 22:36 template1.bki
-rw-r--r--    1 root     root        27412 Jun 13 22:36
template1.description

Do I need to manually alter these? I tried to manually run the initdb
but it complains that the directory should be empty... Should I just
delete the whole dir and re-call postgres start?

Other things: I am running the various manual scripts as user
postgres. I had a few test databases on my old data dir in
/var/lib/pgsql but I don't need the data - should I just delete these
and the backup directory in /usr/share/pgsql? I don't have any
postgres-related environment variables set.

I would be most grateful for any advice...

Many thanks,
colm