topic Re: FRDM-LS1012 - how to update rfs? in Layerscape

FRDM-LS1012 - how to update rfs?

RandyKrakora — Thu, 05 Oct 2017 00:19:20 GMT

Have a FRDM-LS1012 board and only want to update a few files in the rfs and save changes to QSPI without building yocto.

I need to add ifconfig, start the sshd and update the moduli file, so nothing groundbreaking, is there a way to do it as the board is shipped? Or do I need to build yocto rfs? Or download prebuilt binaries and edit the rfs files there?

Regards,

Randy Krakora

Re: FRDM-LS1012 - how to update rfs?

Pavel — Thu, 05 Oct 2017 03:00:38 GMT

If RAM disk is used, the following command sequence is needed:

rename your RAM disk image to rootfs.ext2.gz.uboot
sudo apt-get install u-boot-tools

Following are the steps for adding files into rootfilesystem:

dd if=rootfs.ext2.gz.uboot of=rootfs.ext2.gz bs=64 skip=1

gunzip rootfs.ext2.gz

mkdir /mnt/iso_1

sudo mount -oloop rootfs.ext2 /mnt/iso_1

Now, one can copy files into appropriate location under “./mnt/iso_1” directory.

sudo umount /mnt/iso_1

gzip -9 rootfs.ext2

mkimage -A ppc -O linux -T ramdisk -C gzip -n 'rootfs.ext2.gz.uboot' -d rootfs.ext2.gz rootfs.ext2.gz.uboot

Have a great day,
Pavel Chubakov

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Re: FRDM-LS1012 - how to update rfs?

RandyKrakora — Thu, 05 Oct 2017 12:05:16 GMT

Thanks Pavel.

But it appears the kernel.itb image contains the kernel, dtb and rootfs? Can you give me some steps on how to create the kernel.itb from the rootfs.ext2.gz.uboot file you created above?

Regards,

Randy Krakora

Re: FRDM-LS1012 - how to update rfs?

RandyKrakora — Fri, 06 Oct 2017 02:25:26 GMT

Pavel,

Or, thinking ahead, it would be nice to be able to add these things to the yocto build, in case I need to add more packages, then I can just run bitbake and have my .itb file. :smileyhappy:

I'm somewhat familiar with yocto, building, adding layers and patches and such, but I've never done anything with yocto builds to add lines to the startup scripts via bitbake commands, do you have any docs on that for Qoriq parts?

Regards,

Randy Krakora

Re: FRDM-LS1012 - how to update rfs?

RandyKrakora — Fri, 06 Oct 2017 02:35:12 GMT

I think I found something that may work for me here:

https://community.nxp.com/thread/394712

Re: FRDM-LS1012 - how to update rfs?

Pavel — Fri, 06 Oct 2017 03:02:55 GMT

Look at attached file. Find the following:

Build the FIT using mkimage

Have a great day,
Pavel Chubakov