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Boot from RAM initrd image with fastboot

Maralb
Prodigy 20 points


I have an am335x based board, and I need to boot uImage+ramdisk using fastboot. I have only UART and USB available.

After booting with SPL and u-boot, I am able to download and boot boot.img image created with mkbootimg. Kernel starts succesfully but did not find ramdisk, having panic. Image is built wit command:

mkbootimg --kernel kernel/arch/arm/boot/uImage --ramdisk ramdisk.img.gz --base 0x80000000 --cmdline "console=ttyO0,115200n8 androidboot.console=ttyO0 mem=256M root=/dev/ram0 rw initramfs=0x81000000,8M init=/init ip=off " -o boot.img

Thanks in advance