We're trying to do a scripted install of ESXi5 on UCS. It will be Boot-from-SAN on a EMC VNX, via Cisco MDS fabric. The script works like a champ, and all files appear to load, but once the installation tries to find a writeable device (i.e. LUN 0), it says that there are no suitable disks to write to.
We are running 4.1 in a similar configuration with no problems.
We are only presenting a single LUN to the blade and the array shows the adapters for the blade are both registered and logged in.
The kernel logs indicate that the only SCSI device found is the "USB-storage", so it appears that the right driver might not be loading during installation.
Google has almost no results for this scenario-- just lots of proud Cloud People showing off their installation scripts, with very few "gotchas".
Thanks in advance...