[Linux-cluster] RHEL Problem: Can't access LUNS

[isplist at logicore.net]

I have tried all of the options I can find or have been given during 
installation. So at this stage, I feel that I should be looking at building a 
custom initrd.img file in order to get this problem resolved. 

Mike


On Thu, 1 Mar 2007 22:10:40 -0300, Filipe Miranda wrote:
> Mike,
> 
> I got this from the URL: http://www.redhat.com/docs/manuals/enterprise/RHEL-
> 4-Manual/ref-guide/ch-modules.html
> 
> "During installation, Red Hat Enterprise Linux uses a limited subset of
> device drivers to create a stable installation environment. Although the
> installation program supports installation on many different types of
> hardware, some drivers (including those for SCSI adapters and network
> adapters) are not included in the installation kernel."
> 
> Which means that if the installation kernel that you are using does have
> the SCSI modules, you should just load the parameters during the process of
> loading anaconda.
> 
> When the RHEL loads, the first phase of the installation, you should use
> the SCSI parameters there!
> If nothing happens, this means that the SCSI drivers that you need are not
> in the installation kernel.
> 
> I recommend using the latest release of the version of the RHEL you are
> trying to install.
> 
> Also check page number 106 (20-30) of the pdf that Roger posted, on SCSI
> options.
> 
> I hope these guidelines will help you solve the problem.
> 
> Regards,
> 
> Filipe Miranda
> 
> On 3/1/07, isplist at logicore.net < isplist at logicore.net> wrote:> I'm not
> sure what you're telling me here.
> 
>> Since this isn't something I knew how to do, I've been asking for help.
>> The
>> things I know how to do now, which still don't work, are all things which
>> have
>> been suggested by people who are trying to help.
>> 
>> From all of this, the one thing I've learned is that it does not matter
>> what I
>> try to enter at the install command line, the problem is the redhat
>> installer,
>> there is no way of passing this information.
>> 
>> I need to modify the RHEL4 install CD's initrd.img in order for anaconda
>> to
>> see this at install time... and, I don't know how to do this but am
>> reading up
>> on it.
>> 
>>> http://www.kernel.org/pub/linux/kernel/people/gregkh/lkn/lkn_pdf/ch09.pdf
>>> 
>> Thanks, I'll check this out.
>> 
>>> what you have to writte is a litle modification of
>>> what you type in the modprobe.conf file
>>> maybe something like:
>>> scsi_mod.max_luns=256
>>> scsi_mod.scsi_dev_flags=INLINE:TF200:0x242
>>> 
>> I don't have access to modprobe.conf at install time, that's the point of
>> my
>> problem. I can modify it AFTER install and see all of the storage but I
>> need
>> to see the storage AT install time so that I can install TO the storage.
>> 
>>> man, you have to test it, try and error approach maybe
>>> 
>> I've been at trial and error for a couple of weeks now.
>> 
>> Mike
>> 
>> 
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