When installing A Redhat EL4/Centos4/Oracle_UBL4 OS that is supported by the DL585 chassis according to HP, you should immediately install the HP Proliant Support Pack.
(I would recommend downloading the latest one from
http://h20000.www2.hp.com/bizsupport...&lang=en&cc=us instead of using the one on the disc that came with the computer)
The HP PSP will automatically install all of the proper drivers for the hardware in your machine.
It looks like v7.91 & the site is alot less user friendly than it was a few months ago since they have now switched to cryptic multipart downloads instead of a single easy .tgz file.
You probably don't have a network driver that supports the Broadcom network interfaces. The old driver was the bcm5700. The new driver HP has chosen to use is the TG3 driver.
Try using "netconfig" to configure you network settings once, it will attempt to load a compatible driver if one is on the system. The HP proliant support pack should have came on the disc's that shipped with the system.
NOTE: If using Centos or Oracle UBL you will have to change the text in /etc/redhat-release to say "Red Hat Enterprise Linux AS release 4 (Nahant Update 4)" or whatever the correct text is for other releases. I have at least one of everything here. and support 4 DL585 G1's and 1 DL585 G2.