Agile Aspect wrote: > Paolo Supino wrote: > > Hi Peter > > > > I tried that and it the result is the same: Linux only finds, > > initializes and uses only 1 core ... :-( Is there anything else I can > > try to have Linux initialize all 4 cores? > > > You're probably booting the single CPU kernel. > > Try booting the kernel ending with "-ELsmp". All CentOS 5 kernels are SMP kernels, there is no ELsmp kernel anymore. Problem really seems to be missing ACPI functionality which leads to the problem that only one core is found. Ralph -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 189 bytes Desc: not available URL: <http://lists.centos.org/pipermail/centos/attachments/20090203/926edd0d/attachment-0005.sig>