In data domenica 19 marzo 2017 23:14:14 CEST, Diego ha scritto:

Hi all,

I'm trying to use the multi-file format mentioned in pages 12-13 of "U-Boot – Multi image booting scenarios" PDF slides.

I'd like to use FIT format, but I already have units in the field without CONFIG_FIT.

So I'd like to use the legacy U-Boot multi-file format, but I don't understand the format that should be used for the ramdisk. I already have a multi-file image that boots the kernel with the dtb, but it crashes when the ramdisk is needed (looking for an address outside of physical memory limits).

Which format should be used for the ramdisk? ext3.gz initrd? cpio.gz initramfs?

Hi all,

as I've found the solution, I'll reply myself in the hope it might help somebody in the future.

The format can be both ext3.gz initrd, or cpio.gz, as I've seen a working example of ext3.gz initrd here: https://alteraforum.com/forum/showthread.php?t=51423&p=212064#post212064 And I've been able to make a cpio.gz initramfs by specifying an initrd_high address below the location of the multi-file address. Leaving the initrd_high=0xffffffff was causing the kernel to not find the ramdisk image, thus crashing.

Hope it helps, Diego