i.MX ProcessorsのトピックRe: Auto login and execute the custom script on bootup on iMX8M Mini

Auto login and execute the custom script on bootup on iMX8M Mini

sreedhar_appala — Tue, 01 Oct 2019 18:57:43 GMT

Hi,

I am working with Yocto linux build, BSP linux kernel version 4.14.78_2.0.0

working on the iMX8M Mini EVK target.

I have added my executing commands at /etc/rc.local before exit 0.

But i could not see those commands executing.

ps: I could not find the /etc/inittab.

Could you please let us know how to do this.

thank you, sreedhar

Re: Auto login and execute the custom script on bootup on iMX8M Mini

b36401 — Wed, 02 Oct 2019 07:06:44 GMT

Please make sure that you are using "right" /etc/rc.local file.
I mean possibly your OS uses ramdisk and updating the file on live filesystem gets overwrited with unpacking ramdisk image.

Also please make sure that executing of this script does not stop somewhere before your command.

On my board I added a simple command into /etc/rc.local file:

root@imx8qmmek:~# tail -2 /etc/rc.local
echo test > /test.txt
exit 0
root@imx8qmmek:~#

Then I rebooted the board and got the result:

root@imx8qmmek:~# cat /test.txt
test
root@imx8qmmek:~#

As for autologin please try to add "-a root" (or some other user) into ExecStart option
of /etc/systemd/system/getty.target.wants/serial-getty@ttyAMA0.service file this way:

ExecStart=-/sbin/agetty -8 -a root -L %I 115200 $TERM

Re: Auto login and execute the custom script on bootup on iMX8M Mini

sreedhar_appala — Fri, 04 Oct 2019 16:02:23 GMT

Thank you Victor, it worked for me.

Re: Auto login and execute the custom script on bootup on iMX8M Mini

Mike_Chen — Fri, 11 Mar 2022 11:12:07 GMT

Hi,

How to prevent to print following message?

localhost login: root (automatic login)