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Re: Can we boot directly from the MMC card

by Terry Kemp-2 :: Rate this Message:

On Sun, 2008-01-13 at 20:57 -0800, Tom Hoffman wrote:

> Hey Terry,
> I've been mucking around with the instructions a bit and attempting to
> adapt them for booting from a CF card. I can get the initramfs to come up
> ok, the init script to execute, root file system to mount, and the
> switch_root call to kick off (appears to be successfully). Then things
> appear to go downhill when the /sbin/init on the newly mounted rootfs starts
> trying to insert modules and kick off services. It basically displays the
> following after the switch_root and locks up:
>
> mcf25: Unknown symbol cfio_dev_info
> mcf25: Unknown symbol register_cf_driver
> mcf25: Unknown symbol unregister_cf_driver
> I2C: i2c-0: PXA I2C adapter
> I2C: i2c-1: PXA I2C adapter
> i2c /dev entries driver
>
>
> Did you ever run into this issue? Are you able to boot all the way with the
> gumstix-x11-basic rootfs on the card? Any pointers from anyone highly
> appreciated.
>
> Thanks,
> Tom
>

Hi Tom,

sounds like you made good progress considering the formatting mistakes
on the web page - damn Wordpress editor. I'm fixing it slowly.

I can boot all the way with the x11 image in switch_root - but I don't
have a CF card. Maybe check if the cf stuff is enabled as module/s in
the kernel config when you do the build for gumstix-x11-image and
bitbake /virtual/kernel -c clean before you build - else the stuff you
disabled in the kernel won't be added as modules to the new rootfs.

If you post your init I will add the CF stuff to the howto.

thanks

Terry

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