[Cbe-oss-dev] Kernel Build Help

[Jiafu Gao]

Thanks, Nelson. Yes, I believe Ubuntu has userland 32 bits and kernel 64 bits.

Do you mean literally (without change, including the ?= ) add this to the beginning of Makefile:
 CROSS_COMPILE   ?= powerpc64-unknown-linux-gnu-

I did that, and get a tons of errors like the following: 
ps3-linux/scripts/gcc-version.sh: line 25: powerown-linux-gnu-gcc: command not found
 
I do have ppu-gcc installed. So I tried add the following:
  CROSS_COMPILE = ppu-
and I got the same error as my first email.

OK, I downloaded (use git clone) the 2.6.26.rc2  directly from linux kernel org and compiled it successfully. 

Now I have questions on the installation. I know that I can do make install or/and make module_install. However, I checked the Makefile, this will install lots of files on the system in different directories. If it does not work out, how do I roll back the OS to my current working status? 

If there is no safe/easier way, I'd rather manually manage the install procedure. So I know exactly what I did, and therefore know how to rollback all the changes to the current status.

Can I simply do this:copy the 2 files: vmlinux and initrd.img to /boot  (with proper name so it does not overwrite my current files), and add a new line in the kboot.conf:
   testkernel='/boot/vmlinux.test initrd=/boot/initrd.img.test 
video=ps3fb:mode:133'

If the answer is Yes, where is the initrd.img file? (I can see the vmlinux in the build root directoy.

Best regards, 

Jiafu



----- Original Message ----
From: Nelson Batalha <nelson_batalha at hotmail.com>
To: Jiafu Gao <jiafu_gao at yahoo.com>
Sent: Wednesday, August 6, 2008 8:28:13 PM
Subject: RE: [Cbe-oss-dev] Kernel Build Help

 What is your userland and kernel combination? 32-64, 64-64? In the first case don't forget to add 

CROSS_COMPILE   ?= powerpc64-unknown-linux-gnu-

to your Makefile in the kernel folder.

________________________________
Date: Wed, 6 Aug 2008 10:12:53 -0700
From: jiafu_gao at yahoo.com
To: cbe-oss-dev at ozlabs.org
Subject: [Cbe-oss-dev] Kernel Build Help




Here is the steps I took:
1. get source: $ git clone git://git.kernel.org/pub/scm/linux/kernel/git/geoff/ps3-linux.git ps3-linux
2. make config: $ make ps3_defconfig
3. compile: $ make 


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