[U-Boot-Users] dd to generate image.

[Tim Chen]

Hi,
I'm using dd to generate the u-boot+kernel+rootfs image.
I executed command like..
dd if=rootfs.jffs2 of=kernel.img bs=1 seek=ROOTFS_OFFSET
But dd is quite slow, generating a 64MB image spends about 5 minutes.
I have changed bs=1 to bs=1024 or bigger, but the outputted image size
is wrong, too big.
dd manpage says that bs is the size of read/write one time.
Doesn't it make dd faster?

How do make dd faster?

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Regards,
Tim.