[IMX8ULPEVK] Decreasing Yocto Linux boot time

ksingh — Tue, 01 Oct 2024 20:03:14 GMT

Hello all,

I am using the IMX8ULP-EVK board for an embedded solution, where I need the boot time for linux to be very low (shooting for ~2 seconds), my application will involve booting the machine, doing meaningful work, and then turning off in a periodic cycle to decrease power consumption.

I am using Yocto Linux 6.6.23_2.0.0, and with the `core-image-minimal-dev` image, I am being taken to user login after about 12 seconds. Are there any guides I can follow to decrease the boot time? Are there any better images I can use that are more suitable for my application?

I am currently working on removing features from the image, as well as cutting down the kernel features, however I fear this will not be enough (current 2 second kernel boot time and ~12 second systemd boot time). Any guidance would be much appreciated.

Re: [IMX8ULPEVK] Decreasing Yocto Linux boot time

Chavira — Wed, 02 Oct 2024 15:13:57 GMT

Hi @ksingh!

Thank you for contacting NXP Support!

At the moment we don´t have examples using the iMX8ULP EVK but you can refer to the AN14093 in that Application note we explain how to reduce the boot time in iMX8M.

Best Regards!

Chavira

topic Re: [IMX8ULPEVK] Decreasing Yocto Linux boot time in i.MX Processors

[IMX8ULPEVK] Decreasing Yocto Linux boot time

Re: [IMX8ULPEVK] Decreasing Yocto Linux boot time