[Buildroot] Generating a defconfig
Yann E. MORIN
yann.morin.1998 at free.fr
Mon Sep 21 20:54:37 UTC 2015
Joao, Thomas, All,
On 2015-09-21 19:08 +0200, Thomas Petazzoni spake thusly:
> On Mon, 21 Sep 2015 17:12:19 +0100, Joao Pinto wrote:
> > I am about to generate a buildroot' defconfig for ARM Juno r1 board, and I would
> > like to know what is the std procedure to make this on buildroot.
>
> Just create your Buildroot configuration, and then run:
>
> make savedefconfig
>
> It will create a file named 'defconfig', which you can simply move to
> configs/<foo>_defconfig.
>
> You can also do it in one step like this:
>
> make BR2_DEFCONFIG=configs/<foo>_defconfig savedefconfig
>
> Note that for the board defconfig, we have a few rules in Buildroot:
>
> * The version of the kernel headers and kernel must be fixed (you
> should not use the "latest version" option)
>
> * The configuration should be minimal, i.e nothing but the default
> userspace package (just Busybox).
To complement what Thomas said:
... and just the minimal set of packages that make the board boot
(e.g. the bootloader, a hardware blob and such low-level stuff).
For example, the raspberrypi defconfig files also enable the
rpi-firmware package, because it contains the bootloader blob.
Otherwise, as Thomas said: nothing fancy. The strictly minimum to get
the board up to a shell.
Regards,
Yann E. MORIN.
--
.-----------------.--------------------.------------------.--------------------.
| Yann E. MORIN | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
| +33 662 376 056 | Software Designer | \ / CAMPAIGN | ___ |
| +33 223 225 172 `------------.-------: X AGAINST | \e/ There is no |
| http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL | v conspiracy. |
'------------------------------^-------^------------------^--------------------'
More information about the buildroot
mailing list