9 = /dev/urandom Faster, less secure random number gen.
10 = /dev/aio Asynchronous I/O notification interface
11 = /dev/kmsg Writes to this come out as printk's
+ 12 = /dev/oldmem Used by crashdump kernels to access
+ the memory of the kernel that crashed.
1 block RAM disk
0 = /dev/ram0 First RAM disk