Re: Compiling a new RHEL-4 kernel

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Under Enterprise 3, I put this line:

options scsi_mod max_scsi_luns=128

in /etc/modules.conf.  The default is 1 lun, this configures the scsi
module for 128 luns.

I would guess that this should work for Enterprise 4.

Matt


On Mon, 2005-12-19 at 22:48, Simon wrote:

> Hi all,
> 
> Ok, I need to recompile my kernel to add in the 'scan all LUNS for  
> each SCSI device' option - by default this is off, but the tape  
> changer I've just been landed with appears to need it (at the moment  
> I can tar to /dev/st0 but can't load/unload using /dev/sg5 :-(
> 
> So, I just wanted to ask a few questions...
> 
>   - Is there a resource where 'how to compile a kernel' is well- 
> documented? I've spent some time looking around the RH site, but  
> couldn't find anything useful
> 
>   - I've downloaded the 'kernel-2.6.9-22.0.1.EL.src.rpm' from RHN,  
> and done a 'rpm -Uvh' on it. That's created lots (and I mean *lots*)  
> of patch files as well as a linux-2.6.9.tar.bz2 file in /usr/src/ 
> redhat/SOURCES. Is the linux-2.6.9.tar.bz2 pre-patched ? Or do I have  
> to apply the patches once I've untarred the file ?
> 
>   - It's been a while since I made a kernel, and it all looks  
> different. Is it just:
> 
> 	make menuconfig			(the machine is 5000 miles away, no X...)
> 	make
> 	make install
> 
> 	... or do I need to fiddle with initrd and alter /boot/grub.conf ?  
> What happened to mrproper ? :-)
> 
>   - Anything else I ought to know ? I'd really rather not bring down  
> the server, since it's so far away...
> 
> Cheers,
> 	Simon
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