[yocto] Adding firmware to initramfs

[Bryan Evenson]

Chris,

> -----Original Message-----
> From: yocto-bounces at yoctoproject.org [mailto:yocto-
> bounces at yoctoproject.org] On Behalf Of Chris Tapp
> Sent: Sunday, November 30, 2014 6:09 PM
> To: ChenQi
> Cc: yocto at yoctoproject.org
> Subject: Re: [yocto] Adding firmware to initramfs
> 
> 
> On 30 Nov 2014, at 08:06, ChenQi <Qi.Chen at windriver.com> wrote:
> 
> > Create a bbappend file for core-image-minimal-initramfs, and add the
> following line to the bbappend file.
> >
> > PACKAGE_INSTALL += "linux-firmware"
> 
> Thanks, PACKAGE_INSTALL works great :-)
> 
> I've gone with the following in my local.conf:
> 
>    PACKAGE_INSTALL_append_pn-core-image-minimal-initramfs = " linux-
> firmware"
> 

For future management, you may be better off using a .bbappend for the image instead of adding this to your local.conf.  If you have your own layer in which you have your own recipes, placing a .bbappend for the image in this layer makes it easy to keep track of everything you changed to customize the image.  If you need to start a new build setup from scratch (new developer starts working on the project, hard drive crashes, etc.) you can get a copy of your layer and have all your image customizations ready.

Specifically for your case, adding the file recipes-core/images/core-image-minimal-initramfs.bbappend to your layer with the contents:

PACKAGE_INSTALL += "linux-firmware"

should get you the same results but be easier to maintain.

Regards,
Bryan

> >
> > On 11/28/2014 08:37 PM, Chris Tapp wrote:
> >> I'm network booting a system using iPXE. The process uses a core-image-
> minimal-initramfs image to select the final rootfs that gets loaded.
> >>
> >> This generally works fine, but I need to be able to install linux-firmware in
> the initramfs image (specifically for the NIC that gets used to load the final
> rootfs).
> >>
> >> How do I get linux-firmware to install in core-image-minimal-initramfs?
> I've tried adding the following into local.conf, but with no luck:
> >>
> >> MACHINE_ESSENTIAL_EXTRA_RDEPENDS += "linux-firmware"
> >> IMAGE_INSTALL_append = " linux-firmware"
> >> CORE_IMAGE_EXTRA_INSTALL += " linux-firmware"
> 
> --
> 
> Chris Tapp
> opensource at keylevel.com
> www.keylevel.com
> 
> ----
> You can tell you're getting older when your car insurance gets real cheap!
> 
> --
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