Found it = "udev", which boot-loaded immediately after discovering SL6 
booter can only handle "sda" labels from grub in root partition spec. If 
"hda" labels are now defunct, an inbuilt translation would surely be 
fairly simple to arrange, no?

Sean wrote:
> Am trying to get an SL6 cloned partition from one box to boot on 
> another box. Always a tricky prospect, I know, and this time the 
> boot-up crashes midway with "no root device found, boot has failed, 
> sleeping forever...." (a new one on me!).
>
> In the past I have used modprobe and kudzu to solve such issues, but 
> unsure what the latest incarnation doing a similar job may be on SL6, 
> and if it can be forced as a boot parameter via grub somehow? Any clue 
> appreciated.
>
> Sean
>