I tried to preform a silent installation of jre-1_5_0_09 on SunOS 5.8 machine in several ways and I ran into the following problems:

1.)Creating the Installation Configuration File:
./jre-1_5_0_09-solaris-sparc.sh -savestate installLog
Using the Installation Configuration File to Install in Silent Mode:
./jre-1_5_0_09-solaris-sparc.sh -silent installLog
the configuration file doesn't seems to be created, and even after creating it manually it does'nt triggers the silent mode.

2.)./jre-1_5_0_09-solaris-sparc.sh -silent -is:log installLog
same as above.

If anyone has any suggestion it will be very helpfully