On Thu 30 Jan 2014 at 21:12:54 +0100, Csanyi Pal wrote: > sudo modprobe rtl8192cu > libkmod: ERROR ../libkmod/libkmod.c:505 > kmod_lookup_alias_from_builtin_file: could not open builtin file > '/lib/modules/2.6.39.4-4/modules.builtin.bin' This is kernel 2.6.39.4-4. Are you using Squeeze? > FATAL: Module rtl8192cu not found. Does the file /lib/modules/2.6.39.4-4/modules.builtin.bin exist?