On Wednesday 18 January 2006 15:25, you wrote:
>try maybe loading acpi power related module on boot.
>this server uses ACPI afaik for the power management.

>regards,
>Max.

what do you mean by "loading acpi power related module on boot" ?
acpi seems to be supported already.
In /var/log/messages I find:
Jan 23 10:56:09 linafs1 kernel: ACPI: Interpreter enabled

I also think that it should be some ACPI related problem: if I start the 
single processor kernel, at the reboot  instead of a system hang without 
messages I get an infinite loop with the message:

ACPI: Invalid reset register bit width: 0x000000

Giovanni

On 1/17/06, Giovanni Bracco <[log in to unmask]> wrote:
>
> I have an IBM x346 server, 2 cpu XEON 3 GHz EM64T , 2 Gb RAM, RAID 7k
>
> Installation of SL 4.2 i386 works.
>
> Installation of SL 4.2 x86_64 hangs always when rebooting, even in the
> first
> reboot during installation sequence.
> The last message on the console after the command "reboot" is:
> ...
> "Restarting System"
>
> and nothing happens after this message.
> No relevant error messages are found in /var/log/messages.
>
> The "shutdown" command works correctly.
>
> Also with SL 4.1 x86_64 the result is the same, no rebooting.
>
> Any suggestion?
>
> Giovanni
>
>
-- 
Giovanni Bracco
ENEA INFO 
(Servizio Informatica e Reti)
Via E. Fermi 45
I-00044 Frascati (Roma) Italy
phone 00-39-06-9400-5597
FAX   00-39-06-9400-5735
E-mail  [log in to unmask]
WWW http://fusfis.frascati.enea.it/~bracco