herhighness wrote:

> We are trying to run our embedded software from the compact flash.
> I have a basic stripped version of linux (blosh), which loads up upon
> power up, and then loads up the our kernel and our root file system
> with our applications
>
> so the blosh resides in first and second partion and actual kernel and
> rfs/apps reside in partition 3 and 4 on compact flash.
>
> we need to upgrade the firmware over the network. for this to work,
> blosh receives updates over the network, and repartition the original
> partitions [partition 3 and 4]. and get the kernel and rfs over the
> network and installs them onto those partition.
>
> but we are having difficulties in executing this. as blosh/kernel/RFS,
> everything is run from same physical deivce, It does not let us do any
> of this [repartitions, or rewriting, or mounting] as it complains that
> the device is busy.
>
> Is there a way around this.

I think the following should work, but someone else should confirm, as im
not sure it's possible to do the chroot and unmount thing. Anyway, create a
ramdisk, copy the needed tools and libraries to it, chroot, unmount the
flash device. and do the upgrade.

--
Lasse Jensen [fafler at g mail dot com]
Linux, the choice of a GNU generation.