On Sat, 7 Jun 2003, Jeffrey W Comer wrote: > Do we have anyone on the list who has installed the Oracle database on > a Linux server? I am installing Oracle 9.2 Standard Edition, > software only, on Red Hat 9 and it keeps getting hung. Check out "Oracle 9i Installation on Red Hat Linux 7.1, 7.2, 7.3, 8.0, 9 and on Red Hat Advanced Server 2.1" at http://www.puschitz.com/InstallingOracle9i.shtml On this website I have documented issues you will face when you install Oracle9iR2 on RH 9, and how to resolve them. One issue is that __ctype_b() is actually gone for __ctype_b_loc() because Red Hat uses a new locale model. However, in libc.so, __ctype_b is still exported as compatibility symbol; at least that's the case with RH 9 glibc-2.3.2-5. And the funny thing is, if you bought the Red Hat 9 CDs in a store, then you will find glibc-2.3.2-5.i686.rpm on the first CD. This glibc version exports __ctype_b(). But when you downloaded Red Hat 9 from redhat.com or from one of the mirror sites, then you will find glibc-2.3.2-11.9.i686.rpm on the image. This glibc version does not export __ctype_b()! I wonder if this is a bug in RH 9 since __ctype_b() is exported in RH 9 glibc-2.3.2-5 but not in RH 9 glibc-2.3.2-11.9 and newer versions. The other issue is that Red Hat 9 includes now the Native POSIX Thread Library (NPTL) which is an improved implementation of POSIX threads for Linux. But using NPTL will cause several problems for Oracle applications. So to fix this problem, you can set the environment variable LD_ASSUME_KERNEL to 2.4.1, which means that the old "Linuxthreads with floating stacks" implementation will be used. Otherwise the Oracle installer runInstaller will hang, the Database Configuration Assistant dbca won't start etc.; Werner