[CentOS] setuproot: moving /dev/failed:No such file or directory

Since my upgrade of the CentOS 5.4 to 5.5, it is impossible to boot from 
kernel 2.6.18-194.xx but older kernel (2.6.18-164-xx) boots perfectly
The message I get is: setuproot: moving /dev/failed:No such file or 
directory*
*And I get a Kernel Panic...
It seems like the system was unable to mount /dev in ram, then it cannot 
find it...
How is it possible and how to solve this ?*

*--
(°-   Bernard Lheureux Gestionnaire des MailingLists ML, TechML, LinuxML
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