Hi
i got drbd8.4 , after unziping , there is now config file there ,, how can i install it ???

Thanks

The typical steps with an autotools application isYou can execute to see the configure options that may be available and you may be interested in taking advantage of.

i dont have configure file ...
-rw-rw-r--. 1 root root 44495 Jun 2 17:31 ChangeLog
-rw-rw-r--. 1 root root 17990 Oct 27 2008 COPYING
drwxr-xr-x. 4 root root 4096 Sep 9 15:30 drbd
lrwxrwxrwx. 1 root root 24 Sep 9 15:30 drbd_config.h -> drbd/linux/drbd_config.h
-rw-rw-r--. 1 root root 4089 Jun 2 17:35 drbd-kernel.spec
-rw-rw-r--. 1 root root 3692 Jun 2 17:35 drbd-km.spec
-rw-rw-r--. 1 root root 297 May 11 2012 filelist-redhat
-rw-rw-r--. 1 root root 240 May 11 2012 filelist-suse
-rw-rw-r--. 1 root root 7465 Jun 2 17:30 Makefile
-rw-rw-r--. 1 root root 479 Jun 2 17:30 preamble
-rw-rw-r--. 1 root root 5380 May 11 2012 preamble-rhel5
-rw-rw-r--. 1 root root 2408 May 11 2012 preamble-sles10
-rw-rw-r--. 1 root root 1534 May 11 2012 preamble-sles11
-rw-rw-r--. 1 root root 425 Oct 27 2008 README
-rw-rw-r--. 1 root root 608 Jun 2 17:30 README.drbd-utils
drwxr-xr-x. 2 root root 4096 Sep 9 15:30 rpm-macro-fixes
drwxr-xr-x. 2 root root 4096 Sep 9 18:04 scripts

you can see yurself :
http://oss.linbit.com/drbd/drbd-8.4.5.tar.gz ///small size

You weren't specific which version you were using, so I simply downloaded the first in the 8.4 series (8.4.0). Just omit the ./configure step in my previous post.