Interesting aspect of signed build

Chris Ball cjb at
Mon Nov 7 10:10:08 EST 2011


On Mon, Nov 07 2011, Mikus Grinbergs wrote:
> On investigating, I saw that I had accidentally replaced the
> develop.sig on the XO-1 with the file from another system.  When I put
> in the correct develop.sig, that XO-1 now booted into the desired
> kernel (and had processed the desired /boot/olpc.fth change).

This is expected -- the develop.sig file is necessary to run your own
olpc.fth, because that file can execute any Forth commands (such as
the one to turn off security..)

- Chris.
Chris Ball   <cjb at>   <>
One Laptop Per Child

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