35～51番のように cmake し直したら、RTL-SDR を認識した！
35. $ cmake ../ -DINSTALL_UDEV_RULES=ON
36. $ make
37. $ sudo make install
38. $ sudo ldconfig
39. $ cd ..
40. $ sudo cp ./rtl-sdr.rules /etc/udev/rules.d
41. $ cd /etc/modprobe.d
42. $ sudo nano no-rtl.conf
43. Type the following 3 lines in the editor
44. > blacklist dvb_usb_rtl28xxu
45. > blacklist rtl2832
46. > blacklist rtl2830
47. [Ctrl+O (not zero)] key -> [Enter] key -> [Ctrl+x] key
48. $ sudo reboot
49. [Ctrl+ALT+T] key -> Terminal
50. $ rtl_test -t
51. RTL-SDR recognized!