Character devices: 1 mem 4 /dev/vc/0 4 tty 4 ttyS 5 /dev/tty 5 /dev/console 5 /dev/ptmx 5 ttyprintk 6 lp 7 vcs 10 misc 13 input 21 sg 29 fb 89 i2c 108 ppp 128 ptm 136 pts 180 usb 189 usb_device 248 hpilo 249 hidraw 250 ptp 251 pps 252 bsg 253 watchdog 254 rtc Block devices: 1 ramdisk 259 blkext 7 loop 8 sd 9 md 11 sr 65 sd 66 sd 67 sd 68 sd 69 sd 70 sd 71 sd 128 sd 129 sd 130 sd 131 sd 132 sd 133 sd 134 sd 135 sd 252 device-mapper 253 virtblk 254 mdp