How did you check the content of, for instance, /proc/cpuinfo?
Looking at the listing, it looks empty:
$ ls -l /proc/cpuinfo
-r--r--r-- 1 root root 0 Mar 7 12:41 /proc/cpuinfo
If you cat the file, there is content:
$ cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 2
model name : Intel(R) Pentium(R) 4 CPU 2.80GHz
stepping : 9
cpu MHz : 2793.527
cache size : 512 KB
physical id : 0
The /proc directory can be seen as a realtime gateway/interface between the kernel and the user. See man proc for details about this pseudo filesystem.
Hope this helps.