Re: [Devil-linux-develop] How does one change the kermel options?

[Heiko Z. <he...@zu...>]

Tim Tait wrote:

>    It looks like all I need to do to support the Promise PDC2026x IDE 
> controller is enable some kernel options. I ran 'make menuconfig' in 
> the kernel directory and picked what I hoped was the right stuff, but 
> it looked like some of usual DL stuff was not set so I am a little 
> worried. It told me to do 'make dep' next, but that failed, something 
> about missing sources. So I ran a dl 'make clean' and 'make 
> menuconfig' and 'make build' but I have no idea what exactly I am 
> going to get. How does one check to see what really got put into the 
> kernel?
>
> Is the right was to customize the kernel for DL? If I just want to 
> enable a few things is there a better way? Thanks-
>
> Tim
>
> ps: The speed issue appears to have nothing to do with raid, it is a 
> write speed problem. Looks like PIO is used for write (3.3MB/s), and 
> UDMA (55MB/s) for read. Odd.
>
Just changing some kernel options end re-compiling the kernel doesn't 
work very well.
Best way is to change the parameters and see if it correctly re-compiles 
by executing
build/scripts/build.sh build opt=linux

When the compile runs fine, then you have to change the values in 
build/scripts/config/config_linux and start over with a  "make mrproper 
unpack......"

I quickly checked the kernel config and the support for the Promise 
controllers is in there.
Is the BIOS for the controller enable? Is there any quick-boot you could 
disable ?

Heiko