[maemo-developers] [maemo-developers] Re: Span filesystem across both SD cards?

[From: Neil MacLeod]

Matan Ziv-Av wrote:
> insmod unionfs.ko
> mount -t unionfs -o dirs=/media/mmc1/usr=rw:/usr=ro unionfs /usr
> 
> to startup scripts (early enough) before anything opens a file for writing under
> /usr.
> 
> See here:
> 
> http://www.linux-live.org/unionfs/
> 

Would unionfs allow a single file to span two directories/partitions?