[yocto] Removing busybox

[Mark Hatle]

On 2/27/19 11:06 AM, Tom Rini wrote:
> On Wed, Feb 27, 2019 at 01:16:56PM +0100, Jean-Christian de Rivaz wrote:
> 
>> Hi all,
>>
>> After reading the thread "Removing busybox completely from the generated
>> image" I tested to reproduce the method but this doesn't work as expected.
>>
>> git clone git://git.yoctoproject.org/poky -b thud
>> cd poky
>> echo 'require conf/distro/poky.conf' > meta-poky/conf/distro/poky-ng.conf
>> echo 'DISTRO = "poky-ng"' >> meta-poky/conf/distro/poky-ng.conf
>> echo 'VIRTUAL-RUNTIME_base-utils = ""' >> meta-poky/conf/distro/poky-ng.conf
>> sed -i 's/^DISTRO.*/DISTRO = "poky-ng"/' conf/local.conf
>> bitbake core-image-minimal
>> runqemu core-image-minimal kvm
>>
>> After login as root there still a lot of links to busybox inside /sbin/
>> /bin/ /usr/sbin/ and /usr/bin/ .
>>
>> Can someone provides a working method ?
> 
> You're missing a few more things, yes.  What I have is:
> # Switch to systemd
> DISTRO_FEATURES += "systemd"
> VIRTUAL-RUNTIME_init_manager = "systemd"
> VIRTUAL-RUNTIME_initscripts = ""
> VIRTUAL-RUNTIME_syslog = ""
> VIRTUAL-RUNTIME_login_manager = "shadow-base"
> DISTRO_FEATURES_BACKFILL_CONSIDERED = "sysvinit"
> 
> # Replace busybox
> PREFERRED_PROVIDER_virtual/base-utils = "coreutils"
> VIRTUAL-RUNTIME_base-utils = "coreutils"
> VIRTUAL-RUNTIME_base-utils-hwclock = "util-linux-hwclock"
> VIRTUAL-RUNTIME_base-utils-syslog = ""
> 
> If you aren't using systemd you'll need to move the login_manager
> example over as well, otherwise busybox gets pulled for that.
> 
> I'm using the above on thud, today.  And that's not a 1:1 replacement as
> my image pulls in a number of other packages for various things I
> want/need.
> 
> 

You can also blacklist busybox to ensure that it never builds, and thus can't
show up in your target image.

PNBLACKLIST[busybox] = "Don't build this"


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