[yocto] adding all the pieces of WiFi to core-image-minimal

Mon Jan 26 13:51:47 PST 2015

Looks like you also need to add ipv4 to the DISTRO_FEATURES:

DISTRO_FEATURES += "ipv4 wifi"

Might be worth trying.

Thomas

From: Jim Abernathy [mailto:jfabernathy at outlook.com]
Sent: Monday, January 26, 2015 3:38 PM
To: Moore, Thomas (FtWorth)
Cc: Chris Tapp; yocto at yoctoproject.org; Gary Thomas
Subject: RE: [yocto] adding all the pieces of WiFi to core-image-minimal

> From: Thomas.Moore2 at ATK.COM
> To: jfabernathy at outlook.com
> CC: opensource at keylevel.com; yocto at yoctoproject.org; gary at mlbassoc.com
> Subject: RE: [yocto] adding all the pieces of WiFi to core-image-minimal
> Date: Mon, 26 Jan 2015 21:04:54 +0000
>
> For now, I'd just get everything working with the local.conf:
>
> DISTRO_FEATURES += "wifi"
>
> bitbake core-image-base
>
> Ultimately, you may want to make a custom machine and distro config and incorporate all of the things you've specified in local.conf in those configs. For example, I have a system that's an intel-based single-board computer with several expansion cards. I've created a machine configuration to define the basic hardware components (features, drivers, etc). I've also created a custom distro because we prefer system over systemv and to include some other non-machine specific packages. Finally, I've created a custom image that includes some other extras.
>
> The power of local.conf is nice, but it's a little tricky transitioning from that to more of a BSP approach like I described above because most people just say to add it to your local.conf, but that's not really how it should be done at the end. Think global variables vs classes.
>
> P.S. Never edit anything in the poky folder. If you want to modify an existing recipe, create a new layer with a bbappend and modify away.
>
> Thomas
>
>
I tried just adding DISTRO_FEATURES += "wifi" to the local.conf and bitbaking core-image-base, but I got a lot of errors:

NOTE: Resolving any missing task queue dependencies
ERROR: Nothing PROVIDES 'glibc'
ERROR: glibc was skipped: missing required distro feature 'ipv4' (not in DISTRO_FEATURES)
ERROR: Required build target 'core-image-base' has no buildable providers.
Missing or unbuildable dependency chain was: ['core-image-base', 'glibc']

So I got it working with core-image-minimal as I mentioned earlier just before your reply.

> -----Original Message-----
> From: James Abernathy [mailto:jfabernathy at outlook.com]<mailto:[mailto:jfabernathy at outlook.com]>
> Sent: Monday, January 26, 2015 2:53 PM
> To: Moore, Thomas (FtWorth)
> Cc: Chris Tapp; yocto at yoctoproject.org<mailto:yocto at yoctoproject.org>; Gary Thomas
> Subject: Re: [yocto] adding all the pieces of WiFi to core-image-minimal
>
>
> > On Jan 26, 2015, at 3:36 PM, Moore, Thomas (FtWorth) <Thomas.Moore2 at ATK.COM<mailto:Thomas.Moore2 at ATK.COM>> wrote:
> >
> > Try building core-image-base or adding packagegroup-base-extended to your IMAGE_INSTALL. This should add the modules and firmware.
> >
> > core-image-minimal is just that and only includes just enough to boot the system.
> >
> > P.S. if you add "wifi" to your DISTRO_FEATURES, then packagegroup-base-wifi should automatically get added to the image. Checkout meta/recipes-core/packagegroups/packagegroup-base.bb to see how that works.
> >
> > Thomas
> >
>
> Interesting! are we talking about doing this in the local.conf? or are we talking about modifying existing recipes? I'd like to do this cleanly and not mess up what's in the default files. Maybe create my own layer??
>
> Jim A
>
> > From: yocto-bounces at yoctoproject.org<mailto:yocto-bounces at yoctoproject.org>
> > [mailto:yocto-bounces at yoctoproject.org]<mailto:[mailto:yocto-bounces at yoctoproject.org]> On Behalf Of Chris Tapp
> > Sent: Monday, January 26, 2015 2:28 PM
> > To: James Abernathy
> > Cc: yocto at yoctoproject.org<mailto:yocto at yoctoproject.org>; Gary Thomas
> > Subject: Re: [yocto] adding all the pieces of WiFi to
> > core-image-minimal
> >
> >
> > On 26 Jan 2015, at 19:31, James Abernathy <jfabernathy at outlook.com<mailto:jfabernathy at outlook.com>> wrote:
> >
> >
> > I get a clean build when I add: CORE_IMAGE_EXTRA_INSTALL += " packagegroup-base-wifi"
> >
> > However, I have no wireless drivers. I must have to add something to add the drivers and firmware to the kernel. Not sure what though.
> >
> > I'm not an expert here, but I think that adding kernel-modules and linux-firmware to your extra_install should give you what you need.
> >
> >
> > Jim A
> >
> > On Jan 26, 2015, at 11:09 AM, James Abernathy <jfabernathy at outlook.com<mailto:jfabernathy at outlook.com>> wrote:
> >
> >
> > On Jan 26, 2015, at 10:52 AM, Gary Thomas <gary at mlbassoc.com<mailto:gary at mlbassoc.com>> wrote:
> >
> > On 2015-01-26 08:26, James Abernathy wrote:
> >
> >
> >
> > On Jan 26, 2015, at 8:49 AM, Gary Thomas <gary at mlbassoc.com <mailto:gary at mlbassoc.com<mailto:gary at mlbassoc.com%20%3cmailto:gary at mlbassoc.com>>> wrote:
> >
> > On 2015-01-26 06:29, James Abernathy wrote:
> >
> >
> >
> > On Jan 23, 2015, at 12:37 PM, Gary Thomas <gary at mlbassoc.com <mailto:gary at mlbassoc.com<mailto:gary at mlbassoc.com%20%3cmailto:gary at mlbassoc.com>>> wrote:
> >
> > On 2015-01-23 10:24, Jim Abernathy wrote:
> >
> > I'm starting a project mostly for self-education. I have already done
> > the project using Ubuntu Server 14.04 using a Intel NUC and a Pandaboard as targets. Now I want to see how easy it is to move it to Yocto.
> >
> > Starting with the NUC, I can boot Dizzy 1.7.1 core-image-minimal and
> > core-image-sato, both built with bitbake and not the prebuilt images. However, core-image-minimal doesn't have WiFi and core-image-sato does, but I don't need all the GUI stuff. It's a headless application.
> >
> > So what is recommended; eliminating the GUI from sato or adding wifi
> > and wpa-supplicant, etc to minimal?? Also any pointers to how to do the adding/subtracting would be most helpful.
> >
> > Once this is working all I have to do is put apache-tomcat, and openjdk-7-jre, then my application.
> >
> > We use just iw & wpa-supplicant and set up the configuration files
> > manually (e.g. the wpa-supplicant configurations).
> >
> > Could you help with a little more details. What I envision is adding
> > an append statement of some kind to local.conf to load in the wireless related files to core-image-minimal, same with openjdk-7-jre and tomcat7, but my first efforts have generated some unintelligible error for me. So that's why I'm looking for direction on where to start with this.
> >
> > What was the error you got? I'll bet it was for 'iw' which is a
> > package from meta-oe, so you'll need to add that layer
> >
> > Once you've added the meta-oe layer, you should be able to put this
> > line in your local.conf:
> > CORE_IMAGE_EXTRA_INSTALL += " iw wpa-supplicant"
> > Okay, what I don't get is the fact that without any additional layers,
> > bitbake core-image-sato builds all the WiFi features I need. bitbake core-image-minimal does not. So I'm thinking that there is some CORE_IMAGE_EXTRA_INSTALL statement that can just add what is needed without extra layers.
> >
> > I guess it just doesn't make sense to me right now.
> >
> > Try using
> > CORE_IMAGE_EXTRA_INSTALL += " packagegroup-base-wifi"
> > which will bring in 'wireless-tools' and 'wpa-supplicant'.
> >
> > I prefer 'iw' to 'wireless-tools' as it is newer and [IMO] simpler to
> > use.
> > Thanks, I found that I can clean build with just the wpa-supplicant added and I'm hoping that will bring in the wifi drivers. If it does, all I want to do is edit the /etc/interfaces file with the Static IP of the wlan0, the static IP of the eth0 and the wpa-xxx for the WKPA2_PSK information.
> >
> > Do I really need the tools? I don't need CLI commands to change any network parameters later.
> >
> > Jim A
> >
> >
> > --
> > ------------------------------------------------------------
> > Gary Thomas | Consulting for the
> > MLB Associates | Embedded world
> > ------------------------------------------------------------
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> > Chris Tapp
> > opensource at keylevel.com<mailto:opensource at keylevel.com>
> > www.keylevel.com<http://www.keylevel.com>
> >
> > ----
> > You can tell you're getting older when your car insurance gets real cheap!
> >
>
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