PCMCIA/CF device probe order issue

[Christian Zoz]

On Tue, Aug 16, Richard Purdie wrote:
> Hi,
> 
> I'm starting work on supporting the Sharp Zaurus SL-C3000 under Linux
> 2.6 and I'm having a problem with device numbering. The device uses the
> PXA/SharpSL CF interface and I have all the interface code working
> perfectly. The device has some unfortunate slot numbering however in
> that slot 0 is a normal CF slot but slot 1 is a fixed internal
> microdrive which contains the system's root filesystem.
> 
> If you boot with no card in slot 0, the microdrive is found, turned
> into /dev/hda and the root filesystem can be mounted fine. If you have a
> memory card in slot 0, this becomes /dev/hda, the microdrive
> becomes /dev/hdc and it can't find the root filesystem.
> 
> Is there a way to avoid this? Ideally, slot 1 needs to be probed first
> but I'm unsure how to do this.

mount by label or uuid.
Or use udev for persistent device nodes.

-- 

ciao, christian

睡眠不足はいい仕事の敵だ。