Yocto imx6 runlevel

Question

I have a yocto build for "imx6dl" system, after installing some software ( database/java ) system went into infinite loop during boot : "Usage :ps ps: invalid option --'x' ..." "

I'd like to change run level to "safe mode" in u-boot ( denx ) so I can better diagnose what is causing this, I believe current run level is 5.

How do I change runlevel in uboot ?

Thanks, Ran

Answer 1

In u-boot, you can change kernel arguments by overriding bootargs variable:

setenv bootargs '.... 3' 

You can pass kernel runlevel by appending its number, for example 3. Then you launch kernel, i.e.

bootm

Hope it helps