Check the following thread:
http://forums.citrix.com/thread.jspa?threadID=150391

At the bottom you will find a mkinitrd command. I had to first use dmesg to find where the generic IDE module loaded and therefore my ATI module for my controller could not.

I found the proper module name for my controller and created a new initrd file which I called from extlinux.conf

You know, I had documented what I did to resolve the issue (in detail) but I can’t seem to find my notes.

I’m currently running through the steps again to try and give you both a way to complete this. I can tell you off memory what was happening is upon boot the generic IDE driver was taking control before my ATI driver for the IDE controller could.

Again, I will do my best to get together a quick and dirty guide.

I too have the same problem and need a fix. Is there any change you could post details of how you fixed this? I have looked everywhere and have had no luck. I even posted on the citrix forum (and bumped the post once already) and not a single person has responded.

Thanks,
Anthony.

best regards,
Walter