[yocto] Warning: unable to open an initial console

[Gerard van den Bosch]

Hello Andrea,

I have tried to add the line to my machine config:
IMAGE_DEVICE_TABLES = "files/device_table-minimal.txt"

But this didn't help, then I looked a bit further and also tried to set the
following:

USE_DEVFS="0"
VIRTUAL_RUNTIME_dev_manager = "mdev"

Unfortunately this doesn't seem to change anything.

Cheers,
Gerard

On Fri, May 26, 2017 at 7:27 PM, Andrea Adami <andrea.adami at gmail.com>
wrote:

> On Fri, May 26, 2017 at 1:05 PM, Gerard van den Bosch
> <gvandenbosch at gmail.com> wrote:
> > Hello,
> >
> > I have build my vendor custom kernel 2.6.20 with yocto daisy.
> > Daisy is used because seems to be last release supporting this old
> kernel.
> >
> > I tried building core-image-minimal and core-image-base.
> >
> > The kernel boots and the rootfs is mounted but then I get:
> >
> > "Warning: unable to open an initial console."
> >
> >
> > I found on the internet this is because "/dev/console" doesn't exists.
> > The dev folder in my generated rootfs is empty.
> >
> > On internet found can do the following commands:
> > "mknod -m 600 /dev/console c 5 1 "
> > "mknod -m 666 /dev/null c 1 3"
> >
> > But if this is the problem how do I add this to my recipe?
> > Or is there a proper way to populate this devices?
> >
> > Cheers,
> > Gerard
> >
> > --
> > _______________________________________________
> > yocto mailing list
> > yocto at yoctoproject.org
> > https://lists.yoctoproject.org/listinfo/yocto
> >
>
> Hello Gerard,
>
> if your old kernel lacks devtmpfs you need a "device table".
> You need to set at least
> IMAGE_DEVICE_TABLES = "files/device_table-minimal.txt"
>
> This is a default set in image.bbclass before and after daisy...dunno
> what's happened with this release.
>
> Cheers
> Andrea
>
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