i.MX Processorsのトピックsystem hangs while booting when using systemd

system hangs while booting when using systemd

pratyushtomar — Wed, 08 Jun 2016 07:46:04 GMT

I am using imx6ul evk with yocto and I build my yocto in following way

DISTRO=fsl-imx-fb MACHINE=imx6ulevk source fsl-setup-release.sh -b image_4_1_15

bitbake fsl-image-machine-test

I wanted to use systemd instead of sysvinit so made following changes to local.conf

DISTRO_FEATURES_append = " systemd"

VIRTUAL-RUNTIME_init_manager = "systemd"

DISTRO_FEATURES_BACKFILL_CONSIDERED = "sysvinit"

I was able to form image but it hangs while booting. While searching for solution I came to know we need to enable

CONFIG_FHANDLE=y in deconfig. Thus my question where should I enable and in which recipe?

Re: system hangs while booting when using systemd

b36401 — Fri, 10 Jun 2016 09:08:47 GMT

How exactly the system hangs? What is going on.

I mean what output you see after Linux kernel starts.

Have a great day,

Victor

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Re: system hangs while booting when using systemd

djoygaurav — Tue, 08 Nov 2016 06:00:10 GMT

Hi Pratyush,

I hope you must have got the answer to your problem but for those who are still looking for the same problem, I am posting this reply.

The way you did changes in local.conf file is correct and now what we require is to enable "CONFIG_FHANDLE=y" in .config file and make a patch ,for this, go to terminal inside your build
    1 check name and version of your OE-Kernel
        $ bitbake --show-versions
    2 Now I am having linux-imx as oe-kernel so building for that..
        $ bitbake linux-imx -c cleansstate
    3 To modify the kernel configuration, run menuconfig via bitbake. Make your changes and save the configuration.
        $ bitbake linux-imx -c menuconfig
         --here,modify CONFIG_FHANDLE=y (enable it..)

4 The new kernel configuration file you created can be found here.

$tmp/work/imx6dlsabresd-poky-linux-gnueabi/linux-imx/4.1.15-r0/git/.git/.config
check this file if CONFIG_FHANDLE=y present

(my board is i.mx6 duallitesabresd,hence the path accordingly.. you also must be having same kind of path..)

5 go to build location
$ cd to build location

    6 Copy that file to where the bitbake recipe for the kernel will use it.
        cp tmp/work/imx6dlsabresd-poky-linux-gnueabi/linux-imx/4.1.15-r0/fragment.cfg /sources/meta-jcrdlitesabresd/recipes-kernel/linux-imx/4.1.15-r0

     7 run following cmd in series now:
        $ bitbake linux-imx -c cleansstate
        $ bitbake linux-imx
        $ bitbake jcrdlitesabresdimage

now burn your image into sd card and enjoy..