topic Re: How to start an application before system boot up ? in i.MX Processors https://community.nxp.com/t5/i-MX-Processors/How-to-start-an-application-before-system-boot-up/m-p/981455#M145815 <HTML><HEAD></HEAD><BODY><P>Hi, <A class="jx-jive-macro-user" href="https://community.nxp.com/people/toanjunifer@gmail.com">toanjunifer@gmail.com</A>‌</P><P></P><P>It won't be possible at the u-boot level.</P><P>You can optimize the boot time by disabling the unnecessary modules using menuconfig to start your application as soon as possible.</P><P>You can refer to <A href="https://imxdev.gitlab.io/tutorial/How_to_decrease_boot_time_on_iMX6/">this </A>link to minimize the boot time.</P><P></P><P>Regards,</P><P>Shivani</P></BODY></HTML> Fri, 20 Dec 2019 13:44:42 GMT shivanipatel 2019-12-20T13:44:42Z How to start an application before system boot up ? https://community.nxp.com/t5/i-MX-Processors/How-to-start-an-application-before-system-boot-up/m-p/981452#M145812 <HTML><HEAD></HEAD><BODY><P>Hi NXPs,</P><P>My name is Toan. I'm using iMX6UL-evk with kernel 4.14.98. And I trying to start application fast much as possible. Currently, I use crontab to start app and it is started after system boot up. It's took about 27 seconds. But I wanna much faster. So how can I boot app before system boot up ? Does it possible ?</P><P>Thank you so much.</P><P>Best regards,</P><P>Toan</P></BODY></HTML> Mon, 16 Dec 2019 06:50:26 GMT https://community.nxp.com/t5/i-MX-Processors/How-to-start-an-application-before-system-boot-up/m-p/981452#M145812 toanjunifer 2019-12-16T06:50:26Z Re: How to start an application before system boot up ? https://community.nxp.com/t5/i-MX-Processors/How-to-start-an-application-before-system-boot-up/m-p/981453#M145813 <HTML><HEAD></HEAD><BODY><P>Hi, <A class="jx-jive-macro-user" href="https://community.nxp.com/people/toanjunifer@gmail.com">toanjunifer@gmail.com</A>‌</P><P></P><P>At which point do you want to start your application, after u-boot or after Linux console come?</P><P>To run an application on system boot, you need to write the custom systemd service as Linux kernel 4.14.98 uses systemd init/service manager.</P><P>You can refer <A href="https://www.linode.com/docs/quick-answers/linux/start-service-at-boot/">this</A> link to write a custom systemd service.</P><P>Hope this will help you.</P><P></P><P>Regards,</P><P>Shivani</P></BODY></HTML> Tue, 17 Dec 2019 13:46:42 GMT https://community.nxp.com/t5/i-MX-Processors/How-to-start-an-application-before-system-boot-up/m-p/981453#M145813 shivanipatel 2019-12-17T13:46:42Z Re: How to start an application before system boot up ? https://community.nxp.com/t5/i-MX-Processors/How-to-start-an-application-before-system-boot-up/m-p/981454#M145814 <HTML><HEAD></HEAD><BODY><P>Hi <A class="jx-jive-macro-user" href="https://community.nxp.com/people/shivanipatel">shivanipatel</A>‌,</P><P>Thank you for your reply.</P><P>I wanna start my application before login user show up and as early as possible. Does it possible if I wanna start after u-boot ?</P><P></P><P>Note: I tried follow <A class="link-titled" href="https://www.linode.com/docs/quick-answers/linux/start-service-at-boot/" title="https://www.linode.com/docs/quick-answers/linux/start-service-at-boot/">Use systemd to Start a Linux Service at Boot | Linode</A>&nbsp;. It's working good but starting time is&nbsp;the same with I use crontab.&nbsp;</P><P></P><P>Best regards,</P><P>Toan</P><DIV style="position: absolute; left: 797px; top: 130px;"><DIV class="gtx-trans-icon"></DIV></DIV></BODY></HTML> Wed, 18 Dec 2019 02:38:30 GMT https://community.nxp.com/t5/i-MX-Processors/How-to-start-an-application-before-system-boot-up/m-p/981454#M145814 toanjunifer 2019-12-18T02:38:30Z Re: How to start an application before system boot up ? https://community.nxp.com/t5/i-MX-Processors/How-to-start-an-application-before-system-boot-up/m-p/981455#M145815 <HTML><HEAD></HEAD><BODY><P>Hi, <A class="jx-jive-macro-user" href="https://community.nxp.com/people/toanjunifer@gmail.com">toanjunifer@gmail.com</A>‌</P><P></P><P>It won't be possible at the u-boot level.</P><P>You can optimize the boot time by disabling the unnecessary modules using menuconfig to start your application as soon as possible.</P><P>You can refer to <A href="https://imxdev.gitlab.io/tutorial/How_to_decrease_boot_time_on_iMX6/">this </A>link to minimize the boot time.</P><P></P><P>Regards,</P><P>Shivani</P></BODY></HTML> Fri, 20 Dec 2019 13:44:42 GMT https://community.nxp.com/t5/i-MX-Processors/How-to-start-an-application-before-system-boot-up/m-p/981455#M145815 shivanipatel 2019-12-20T13:44:42Z Re: How to start an application before system boot up ? https://community.nxp.com/t5/i-MX-Processors/How-to-start-an-application-before-system-boot-up/m-p/981456#M145816 <HTML><HEAD></HEAD><BODY><P>Hi <A class="jx-jive-macro-user" href="https://community.nxp.com/people/shivanipatel">shivanipatel</A>‌,</P><P>Currently, I;'m using iMX6UL, not iMX6Q. So this solution seem like not compatible.</P><P></P><P>Regards,</P><P>Toan</P></BODY></HTML> Tue, 24 Dec 2019 07:51:13 GMT https://community.nxp.com/t5/i-MX-Processors/How-to-start-an-application-before-system-boot-up/m-p/981456#M145816 toanjunifer 2019-12-24T07:51:13Z