Ibm x series 226 attempt to install os and says no harddrive

you need to press f6 to install third party raid drivers when setup starts...then set will ask you to insert the floppy containing the files...It will ask you when you get to the same screen that tells you no harddrive found....The raid drivers are on ibm's website...just takes a min of poking around

Make sure that the motherboard and/or disk controller recognize the drives during POST.

Then check and see if IBM has a server installation CD-ROM that you can use boot the server and automatically load the correct drivers to prep for the OS install. I have downloaded installation CD ISO files from HP and Dell that walked me right through the OS install.

Another important consideration is that servers frequently use disk controllers that are not included in the operating system's driver files.
For example, when installing Windows OS on a RAID controller you must press F6 immediately after the installation CD-ROM starts up.
Later in the installation you will be prompted to insert a 1.44 diskette with the driver for your RAID controller.

The only challenge is to find the correct version of the driver and get it on a diskette.

I hope this helps.