Re: [Ltib] Problems updating kernel on MPC8377EWLAN

[Stuart Hughes]

Hi Francesco,

I've attached a guide/example, you'll need to interpolate.

Regards, Stuart

Francesco wrote:
> Thanks Stuart,
> but where do I put new kernel source, and how do I configure ltib to 
> work with new kernel source?
>
> On Fri, Sep 25, 2009 at 11:12 AM, Stuart Hughes <address@hidden 
> <mailto:address@hidden>> wrote:
>
>     Hi Francesco,
>
>     To re-configure the kernel:
>
>     $ ./ltib -p kernel -c -f
>
>     -c : configure
>     -f : force (as the package is up to date).
>
>     Regards, Stuart
>
>
> --
> Francesco Cappuccio
---+++ Example: adding a new kernel

Here is an example that shows the addition of a new kernel to a target.

First, here's the patch of the main.lkc file.  I've snipped it back
to remove the hunks we're not interested in:

<verbatim>
$ cvs diff -r 1.2 -r1.3 config/platform/qs875s/main.lkc
Index: config/platform/qs875s/main.lkc
===================================================================
RCS file: /sources/ltib/ltib/config/platform/qs875s/main.lkc,v
retrieving revision 1.2
retrieving revision 1.3
diff -u -r1.2 -r1.3
--- config/platform/qs875s/main.lkc     27 Feb 2007 14:43:16 -0000      1.2
+++ config/platform/qs875s/main.lkc     6 Mar 2007 17:20:39 -0000       1.3
@@ -121,6 +121,8 @@
         bool "2.4.27 (Analogue Micro Ltd)"
     config KERNEL3
         bool "2.6.16 (Analogue Micro Ltd)"
+    config KERNEL4
+        bool "kernel-8xx"
     config KERNEL_DIR_BUILD
         bool "Local Linux directory build"
         help
@@ -135,6 +137,7 @@
     string
     default "kernel-2.4.27-875"               if KERNEL1
     default "kernel-2.6.16-875"               if KERNEL3
+    default "kernel-8xx"                      if KERNEL4
     default "kernel26-dir-build"              if KERNEL_DIR_BUILD

 source ../../userspace/kernel_dir_build.lkc
@@ -153,6 +156,7 @@
     string "kernel config"
     default "linux-2.4.x-am_adder_87x.config" if KERNEL1
     default "linux-2.6.16-am_adder_87x.config" if KERNEL3 || KERNEL_DIR_BUILD
+    default "linux-8xx-am_adder_87x.config" if KERNEL4

 config PKG_KERNEL_WANT_CF
     depends ! KERNEL_NONE
</verbatim>

Here's an explanation:

   * Hunk '@@ -121,6 +121,8 @@' shows the new menu prompt under the kernel
   choice list selection "kernel-8xx"

   * Hunk '@@ -135,6 +137,7 @@' Shows that the new kernel (#4) will select
   the spec file who's base name is "kernel-8xx" as the rpm spec file
   that will be used in order to build the kernel.  It is this spec file
   that references the source tarball and patches that belong to this kernel

   * Hunk '@@ -153,6 +156,7 @@' Shows that the new kernel (#4) will select
   the new linux .config file "linux-8xx-am_adder_87x.config"

In addition to changing this main.lkc for this example I needed do the
following:

   * Create a the kernel config file (maybe based on a copy) the file:
   config/platform/qs875s/linux-8xx-am_adder_87x.config

   * Create (maybe based on a copy of another) the file:
   dist/lfs-5.1/kernel/kernel-8xx.spec.in 
   NOTE: I think it's better to place the spec file in config/platform/_target_

   * Put you source tarball and patches into /opt/ltib|freescale/pkgs


---+ Testing

Run: ./ltib -m config select the new kernel and then: build: ./ltib
If you want to re-configure the kernel and build:
./ltib -p kernel -c -f