I haven't yet fixed this particular problem. Here's a very useful tip I found on one of the Oracle forums: run this RPM query to see if all needed packages are installed. # rpm -q --qf '%{NAME}-%{VERSION}-%{RELEASE} (%{ARCH})\n' binutils compat-db control-center gcc gcc-c++ glibc glibc-common gnome-libs libstdc++ libstdc++-devel make pdksh sysstat libaio libaio-devel The output should included all of the packages shown below (for an x86-64 system) I don't know why xscreensaver and pdksh were included, as they should not be necessary to install Oracle. The libaio packages are definitely required. The libaio-devel-0.3.105-2 (x86_64) package was missing from the box I am working on. up2date would not locate it, so I manually installed it. (libaio-0.3.105-2.x86_64.rpm) Oracle 10gR2 will link without it, but when sqlplus tries to load it to connect to a database, it will fail. binutils-2.15.92.0.2-18 (x86_64) compat-db-4.1.25-9 (i386) compat-db-4.1.25-9 (x86_64) control-center-2.8.0-12.rhel4.2 (x86_64) gcc-3.4.5-2 (x86_64) gcc-c++-3.4.5-2 (x86_64) glibc-2.3.4-2.19 (x86_64) glibc-2.3.4-2.19 (i686) glibc-common-2.3.4-2.19 (x86_64) gnome-libs-1.4.1.2.90-44.1 (x86_64) libstdc++-3.4.5-2 (x86_64) libstdc++-3.4.5-2 (i386) libstdc++-devel-3.4.5-2 (x86_64) make-3.80-5 (x86_64) pdksh-5.2.14-30.3 (x86_64) sysstat-5.0.5-1 (x86_64) libaio-0.3.105-2 (i386) libaio-0.3.105-2 (x86_64) libaio-devel-0.3.105-2 (x86_64) -- Jared Still Certifiable Oracle DBA and Part Time Perl Evangelist On 3/20/06, Steve Perry <sperry@xxxxxxxxxxx> wrote: > > I can't help with the 9i, but I ran into the 10g issue before. In fact, > the sys admin questioned whether or not Oracle was truly 64-bit or changed > just enough to run on a 64-bit (i.e. just a marketing bullet). We also > thought that maybe the installer was still 32-bit and that's why it required > so many 32-bit packages. > I'm starting to get a lot more requests for 64-bit oracle instead of > 32-bit so please update us with what you find out. > > Steve > > On Mar 20, 2006, at 06:04 PM, Jared Still wrote: > >