root@OpenWrt:/etc# ipkg list *fat*
kmod-fs-vfat - 2.6.12.5-x86-1 - Kernel modules for VFAT filesystem support
Done.
root@OpenWrt:/etc# ipkg install kmod-fs-vfat
Installing kmod-fs-vfat (2.6.12.5-x86-1) to root...
Downloading http://downloads.openwrt.org/people/nico/testing/x86/2.6/packages/kmod-fs-vfat_2.6.12.
5-x86-1_i386.ipk
Nothing to be done
An error ocurred, return value: 1.
Collected errors:
ERROR: Cannot satisfy the following dependencies for kmod-fs-vfat:
         kmod-nls-base
root@OpenWrt:/etc#