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Platform forum

gustav , 11-08-2024, 04:05 PM

Hello, I'm having problems with booting linux.
I'm following the course on a iMX6 Rex module.
When I try to boot the kernel it does not want to start. Are there thing I need to do differently then if I where using an OpenRex card?

I've attached the boot log. I tried to find anything strange, but I'm stuck... Someone more experienced maybe see what is missing?

Robert Feranec , 11-08-2024, 09:18 PM

do you have a dhcp server running in the network? did you try fixed IP or disable ethernet just to confirm if problem is DHCP?

gustav , 11-11-2024, 10:07 AM

I've disabled DHCP in the defconfig file (CONFIG_IP_PNP_DHCP=n). I gave the board a static ip and i'm not running DHCP on the host.
When I now run it again I get further! 🙂 But it does still not boot all the way.

It stops on "Waiting for root device /dev/mmcblk1p2...

could it be that I should to follow the SD card configuration that is done in the course? From what I see the pins on the iMX6 rex module is the same as the Imx6 reference board (not like on openRex where we needed to make some changes)

gustav , 11-11-2024, 04:01 PM

I've solved it! 😄
The SD-card on IMX6 rex module uses SD3 instead of the SD2 on the OpenRex card. When I removed the datalines 5-8 and removed &usdhc2 and &usdhc4 from the .dtsi file it booted!
(I also managed to partision my SD-card to store linux on mmcblk2p2 instead of mmcblk2p1...)