Hi David,
Try using the LILO option mem=512M at the LILO prompt from the install CD, I have found that certainly on Proliant 2500's it fails to correctly ascertain the correct size and assumes you have only 16MB of RAM, I did get it to install but it was painful and took all day!!. With the correct memory size it runs quite well and found the Smart Array Controller. You should first of all configure the array from the SmartStart CD, and then install the Compaq diagnostics partition, this is optional, but recommended.
I tried using 'mem=512' and that locked up but re-reading your message says it is "mem=512M" ... just clarifying, does it need to be 'mem=512M' i.e. will what I used 'mem=512' tell the system it's got only 1/2 meg of memory? James C. Rocks Equant Archway House Canary Wharf London E14 9SZ Phone: 0207-5226856 Fax: 0207-5126087 Mobile Phone: 07771-767405 http://www.equant.com