LS1021A-IOT ramdisk image errors

[myungjinhwang]

dear freescale team.

I'm using "QorIQ-SDK-V1.7".

there are some ramdisk errors in booting kernel.

in case of use "fsl-image-core-ls1021aiot-20150707124654.rootfs.ext2.gz.u-boot" file

    [   41.592198] VFS: Mounted root (ext2 filesystem) on device 1:0.

    Bad inittab entry at line 3

    can't run '/etc/init.d/rcS': No such file or directory

in case of use "fsl-image-rds-ls1021aiot-20150709153500.rootfs.ext2.gz.u-boot" file

  - can't open /dev/EHV0: No such file or directory

  - can't open /dev/AMA0: No such file or directory

  - can't open /dev/z6: No such file or directory

  - can't open /dev/S0: No such file or directory

  - can't open /dev/S1: No such file or directory

is it QorIQ-SDK-V1.7 errors?

bellow link is history of discussion.

LS1021A-IOT Kernel boot error

please check and let me reply.

Thanks

[yipingwang]

Hello MyungJin Hwang,

Please check whether add bootargs as the following would be better.

=> setenv bootargs root=/dev/ram0 rw rootwait console=ttyS0,115200 coherent_pool=4M

Have a great day,
Yiping

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[vsiles]

Dear yipingwang​, I recently had a similar issue (lots of 'can't find /dev/foobar) following SDK 1.9 for a LS1021atwr and using your setenv bootargs line solved it. Could you explain the issue, or why this bootargs are better ?

Best,

Vincent

[yipingwang]

It's necessary to specify rootfs boot type(from RAM) with "root=/dev/ram0".

Thanks,

Yiping