If your database is at Oracle 10g, you have another option, which is to use the cross-platform transportable tablespaces...
feature. Solaris, Linux and Windows are supported platforms (you can query the view V$TRANSPORTABLE_PLATFORM to see supported platforms) but they are of different endianness. Solaris is big endian while Linux and Windows are little endian, so there may be an additional step involved to convert the tablespaces being transported on either the source or target side.
To read more about the cross-platform transportable tablespace feature, download the Oracle Database Administrator's Guide 10g (release 10.2) from Oracle Technology Network, which can be found here.
Dig Deeper on Oracle database export, import and migration
Related Q&A from Maria Anderson
I have been trying to install Oracle 8.1.7 on SUSE Linux 9.0 and got the error: "Error in invoking target install of makefile /opt/oracle/...../*.mk." Continue Reading
Can I use /var/opt/oracle/oratab to specify listener information? Continue Reading
How many database instances can be created on an Oracle server with an installation drive containing 15 GB free space? Continue Reading