Re: [Ltib] how to alter a patch file...

[Stuart Hughes]

Hi R.J.

You can't prep a patch file.  The idea of a prep is analogous to rpm's
prep command and this is to unpack all the sources and apply all the
patches for a package.

So what you can do is ./ltib -m prep -p <package_name>

So what you need to do is to unpack the sources/patches for the kernel
you are trying to work on and go from there.

So you could try:

$ ./ltib -p kernel -m prep

This will lookup the kernel for the BSP you're working on and unpack it.
You can then get in and make changes and use -m scbuild, -m scdeploy to
test.  When you're done you can use -m patchmerge to capture changes.

However, please remember LTIB is not intended as a substitute for a
proper SCM system.  If you have access to a git tree or some other
proper SCM source for the kernel you want to work with, that is a better
way to go.  LTIB is able to build any kernel by simply using the 'Local
Linux directory build' option (so it can work with git/other).

Regards, Stuart

On Mon, 2007-03-05 at 19:54 +0530, R.J.Sivakumar wrote:
> Dear support,
>                  Iam trying to modify a driver file which was in patch 
> format, 
> as it said in LtibFAQ in section  "How do I make changes to a package and 
> capture them",used the command 
>  # ./ltib -m prep -p linux-2.6.16-mx31-mxc_ipu.patch
> which gives the error
> Don't have HTTP::Request::Common
> Don't have LWP::UserAgent
> Cannot test proxies, or remote file availability without both
> HTTP::Request::Common and LWP::UserAgent
> 
> get_spec: can't find spec file linux-2.6.16-mx31-mxc_ipu.patch.spec
> 
> in search any of the directories:
>     /home/skumar/freescale/ltib-imx31ads-20060709/rpm/SPECS
>     /home/skumar/freescale/ltib-imx31ads-20060709/config/platform/imx31ads
>     /home/skumar/freescale/ltib-imx31ads-20060709/dist/lfs-5.1
> 
> 
> Processing platform: Freescale IMX31 ADS reference board
> ==========================================================
> using config/platform/imx31ads/.config
> 
> Processing: linux-2.6.16-mx31-mxc_ipu.patch
> =============================================
> skipping linux-2.6.16-mx31-mxc_ipu.patch, specfile not found
> 
> 
> f_prep() returned an error, exiting
> Exiting on error or interrupt
> 
> Please suggest me to overcome this..
> Thanks in advance