Greetings I want to install debian to my server machine however it doesn't have a cd/dvd rom pluggedin thus I am seeking alternative ways to achieve this.
If you're already running something on said system, you could do a chroot installation. If your machine supports boot-to-usb, you can use the usb installer. If your machine supports PXE you can set up a tftp and bootp server and install over the network.
There are many options. Google for "debian alternate install" to get a good set of instructions. Or decide on one and ask for help in that fashion.
I'm a huge fan of using usb to do the install. It's very like a cd in that you can use the usb disk as a rescue disk, but you can update it :)
Link with way too many ways to install Debian http://linuxmafia.com/faq/Debian/installers.html
You can install from Grub/Lilo. I have done this on several occasions with success. Link
-If you have a server, where you can install a tftp server, boot pxe is very interesting : http://syslinux.zytor.com/wiki/index.php/PXELINUX
-You can use USB with UNetbootin : unetbootin.sourceforge.net
-You can mount an iso image : howtoforge.com/installing_linux_without_cd_or_dvd
-Or (i don't know what do you have actually on your server), you can use an '.exe' to install Debian via a Windows : goodbye-microsoft.com