Thank for your answer.

How do you perform the installation ?

In my case, I'm just using PXE, as for all of the other machines.
It works fine for i386 and for x86_64 without that disk, but
kickstart failed "no disk found", with error messages about
missing symbols for the module.

With the i386 SL, I can check that it is the same disk:
uname -a
Linux ccwl0003 2.4.21-15.ELsmp #1 SMP Wed May 12 19:48:28 CDT 2004 i686
athlon i386 GNU/Linux
lspci | grep -i scsi
02:04.0 SCSI storage controller: LSI Logic / Symbios Logic 53c1030 PCI-X
Fusion-MPT Dual Ultra320 SCSI (rev 07)


Stephan Wiesand wrote:

>Both kickstart installs and the system itself worked fine on this hardware
>at least up to kernel 2.4.21-15.0.2.ELsmp:
>
>[wiesand@heliade4]~% uname -rm
>2.4.21-15.0.2.ELsmp x86_64
>
>[wiesand@heliade4]~% /sbin/lspci|grep -i scsi
>02:04.0 SCSI storage controller: LSI Logic / Symbios Logic 53c1030 PCI-X
>Fusion-MPT Dual Ultra320 SCSI (rev 07)
>
>[wiesand@heliade4]~% /sbin/lsmod|grep mpt
>mptscsih               43344   5
>mptbase                45280   3 [mptscsih]
>scsi_mod              126404   3 [sg mptscsih sd_mod]
>
>This is an Opteron, not a Nocona system.
>
>Cheers,
>       Stephan
>
>
>On Wed, 22 Sep 2004, Perret Yannick wrote:
>
>
>
>>Some additionnal notes:
>>
>>I checked a machine which is under SL302-64 bits
>>(also a dual-opteron, but from an other constructor).
>>By chance, this machine is IDE, and so I encounted
>>no problem during installation.
>>
>>I checked  the /lib/modules and found the previously
>>evil modules mpt*.o, and the second one called
>>mptscsih.o also failed to load due to unresolved
>>symbols. The other one used (mptbase.o) loads
>>without problems but cannot initialize because
>>it uses the previous one.
>>
>>So the question is:
>>is it a compilation mistake if this module does
>>not work ? Or is it because x86_64 does not
>>support it ?
>>
>>I'm trying to answer to the question by
>>rebuilding the src.rpm for the kernel with a
>>modified .config.
>>
>>Help/clues would be appreaciated.
>>
>>Regards,
>>--
>>Yannick Perret
>>
>>
>>
>
>
>