On 9/27/07, Gustin Johnson <[EMAIL PROTECTED]> wrote: > > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Robert Lewko wrote: > > I am having second thoughts about running the 7260 from a SDcard. You > > get everything that I wanted by running it from a NFS root. My original > > motivation for running the card off a SDcard was that if I had my laptop > > on someone else's network then I would constantly be reconfiguring the > > board to adjust the new network. I am, right now learning how to run > > DHCP from my laptop to issue addresses on an network address on an > > obscure network address ( 172.28.1.0/255.255.0.0 > > <http://172.28.1.0/255.255.0.0>) with two network addresses bound to my > > ethernet NIC. With that I will be able to plug into anyone's hub and be > > able to have the 7260 NFS mount my laptop. > > I have a serious dislike of NFS. In any case, for this to be useful to > me, the thing has to be self contained. > > > There are two reasons not to run the board from the SD card. First, by > > choosing the SD card option is mutually exclusive with the XDIO, which > > Not important to me. At least not yet. > > > is really useful in embedded work. Secondly, the to run get the board > > to boot from the SD card you have to modify the boot ROM, which > > eliminates the RedBoot system. With RedBoot gone you have to do the > > same things you have to modify an initrd that gets installed to the SD > > card. > > That sucks. From the product details it looks like booting from the SD > card is something that will happen "in the near future". At least it > will boot from a USB flash drive (at least it looks like it can).
The issue is that the board uses modules for the SD card and the USB drive. That means that you need an initrd with those modules to be able to boot from those devices. Either that or recompile the kernel, hoping that the device writer allowed for building the drivers into the kernel (I think they are written to only be modules) so that you can have MKDEV put the nodes into the /dev directory. Without that the board will not find its boot device - kernel panic.
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