Question: I am trying to install Windows 2008 server on a HP Proliant DL180 G5. There is no built-in DVD reader so I need to use my LaCie USB one.

When I put the CD in and boot from the USB DVD on the server, I get the error message:

Boot Failed! Please insert boot media in selected boot device.

So I tried with another Windows bootable CD and still no luck.

What I've done then, I copied the installation DVD on my 16go USB key. Again, impossible to boot from the USB Key. 

I have 2 147go SAS 15k HDD on my server. They are not showing in the Bios. I was wondering if this is a reason why nothing will boot on it.

I am trying to find a way to deploy Windows 2008 server on my HP server as soon as possible.

If you guys have ideas, feel free to let me know :)

Best regards,
David.

System Information:
HP Proliant DL180 G5
Quad-Core 2.5
4GO Ram 
2x 147GO SAS 15k

P.S. This is my first installation ever on SAS/SCSI HDD.

Thanks a bunch!

Edit:

Well, my bad! I purchased a new USB DVD and now I can install Windows 2008 server.

Thanks a bunch for your help!

Answer: 
You'll probably need to go into the BIOS and enable it to boot off the USB drive.
I suspect Mr. Denny's nailed it.

Also look for a bootup message about a boot menu (F12 is popular) to see if you can pop up a menu of available boot devices.

Not trying to be a jerk, but did you boot another computer from that DVD or USB to make sure it's happy? I only say this because I've spun my wheels in this manner a few times. ;)