linux - Kernel and Rootfs booting through tftp -

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task: load kernel , rootfs image , execute ram without storing onto spi flash

i loaded flashable image (zimage @ 0x200000) , flashable rootfs (jffs2 @ 0x200000+offset)

tftp zimage 0x200000 tftp jffs2 0x200000+offset bootm 0x200000 0x200000+offset

it giving me error:

root-nfs: no nfs server available, giving up. vfs: unable mount root fs via nfs, trying floppy. vfs: cannot open root device "ram0" or unknown-block(2,0) please append correct "root=" boot option; here available partitions: 1f00        256 mtdblock0 (driver?) 1f01        256 mtdblock1 (driver?) 1f02       2048 mtdblock2 (driver?) 1f03      13824 mtdblock3 (driver?) kernel panic - not syncing: vfs: unable mount root fs on unknown-block(2,0)

and : bad magic number

any appreciated

@sawdust, right. jffs2 cannot used in ram if initrd or initramfs.

i loaded both images onto ram , executed onto ram based on ext2 filesystem.

bootargs: setenv bootargs root=/dev/ram0 console=ttymcs mem=64m@0x0 init=/bin/sh


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