[oe] How to modify /etc/network/interfaces file in a OE recipe

[Frans Meulenbroeks]

2010/10/8 Khem Raj <raj.khem at gmail.com>:
> On Thu, Oct 7, 2010 at 3:54 PM, Gary Thomas <gary at mlbassoc.com> wrote:
>> On 10/07/2010 03:11 PM, Elvis Dowson wrote:
>>>
>>> Hi,
>>>        Would someone be able to help me with modifying an
>>> omap3-console-image recipe, such that in the final image, the
>>> /etc/network/interfaces file gets edited as follows
>>>
>>> #auto eth0                              <- remove # sign ( auto eth0 )
>>> #iface eth0 inet dhcp           <- remove # sign ( iface eth0 inet dhcp )
>>> #iface eth1 inet dhcp
>>>
>>> I am using a Gumstix Overo + Chestnut43 expansion board, which has an
>>> inbuilt wired ethernet interface. I have to make this modification manually,
>>> to enable this interface each time. However, if I can modify the OE recipe
>>> somehow to do this it would be great. I know it can be done, but I don't
>>> know where to start and which file to modify.
>>
>> Add the file the way you like it to
>> .../openembedded/recipes/netbase/netbase/overo
>> and rebuild netbase.  Use the beagleboard as an example.
>
> or use bblayers and bbappend.

Actually if you use an overlay you can just put your patch file in the
files dir of your overlay.
If I recall correctly files will be first fetched in the FILESPATHPKG
in the overlay before looking in the oe dir (assuming your layer
priorities are ok)

Have fun! Frans