Those instructions might be interesting for other configuration too (for instance Fedora 7 and prior).
The GNU/Linux Opera 9 package does not seem providing all needed dependencies information. Such a way, even if the rpm is well installed, there might be trouble to launch Opera.
To begin, to install Opera:
- download the rpm of the wished version, Opera 9.27 being currently the latest stable one;
- install it with yum to get the maximum (but not all) needed packages installed too:
yum --nogpgcheck localinstall "opera-XXX.rpm"
- ensure to have qt package installed (i386 for v9.27 and prior; x86_64 might be enough for newer version)
- ensure to have a up to date Java installation to benefit from the maximum functionalities (again, i386 for v9.27 and prior; x86_64 might be enough for newer version)
- it might be needed to update the LD_LIBRARY_PATH to specify where to find some libraries: libqt-mt.so (qt), libjvm.so and libawt.so (Java):
For instance, if you have installed the i386 JDK 6u6 under /usr/share/java/jdk1.6.0_06.i386/