hai,
I am installing fedora core6 in my system.After installation was completed at first time booting my system is bloking at "starting sshd".
please resolve my problem.
regards,
suresh.

Well I'd rather you say "can I get some advice/help" as opposed to "please resolve my problem".

Moving on past that, does it ever boot if you leave it at "Starting sshd"? Try hitting "I" when after uncompressing the kernel so you enter Interactive Startup and choose not to start that service. That will at least get you booted. Then, run this command in a terminal window "/sbin/chkconfig sshd --level 5 off" without the quotes. This is assuming you are booting to init level 5. You can double check this by running "cat /etc/inittab | grep x: | awk -F: '{print $2}'" without the double quotes but LEAVE the single quotes.
So in other words this,
cat /etc/inittab | grep x: | awk -F: '{print $2}'