Can Petalinux create a u-boot wrapper for rootfs.cpio.gz?

[mattbrowner]

I see from the Xilinx U-boot Wiki that it's straightforward to use 'mkimage' to put a rootfs.cpio.gz ramdisk archive into a u-boot wrapper.

Petalinux easily creates the u-boot-wrapped kernel with this command:

$ petalinux-package --image -c kernel --format uImage

What about urootfs.cpio.gz?

Thanks!

/Matt

[mattbrowner · Accepted solution]

Follow up answer for anyone interested...

The mkimage utility is created as part of the petalinux-build process. Petalinux puts it in the following directory:

<project_folder>/build/tmp/sysroots/x86_64-linux/usr/bin/

Here's an example command to take rootfs.cpio.gz and wrap it with a u-boot header:

$ ~/MiniZed-v2017_2/build/tmp/sysroots/x86_64-linux/usr/bin/mkimage -A arm -T ramdisk -C gzip -d rootfs.cpio.gz uramdisk.image.gz

Still no word on whether it can be done with a Petalinux command/switch. That would be really convenient!

Any suggestions?

Thanks,

/Matt