I have an intermittent problem with my Dell blades, out of 80 blades 69 of them kickstarted Centos 6 fine using PXE The other 11, I get a c0t0 not found error (indicating it is not finding the local disk on the blade).
I can remote mount the iso image and do a basic install of centos on these blades, but when I go to do a pxe boot it gives me that error again.
I have googled the issue and come up empty handed. Dell told us to install centos 6 minimal ISO then pxe install the server. This has been unsuccessful. I get the local ISO to install but the pxe fails again.
Since the kickstart file defines the disk as sda1 I am supposing that it is really a hardware problem. But I am told by coworkers who handed it off to me that it is a known issue with centos and Dell blades.
These are two internal disks on the blade.
Any suggestions?