Character devices: 1 mem 4 /dev/vc/0 4 tty 4 ttyS 5 /dev/tty 5 /dev/console 5 /dev/ptmx 5 ttyprintk 7 vcs 10 misc 13 input 21 sg 29 fb 89 i2c 99 ppdev 108 ppp 128 ptm 136 pts 180 usb 189 usb_device 248 nvme 249 bsg 250 watchdog 251 rtc 252 dimmctl 253 ndctl 254 tpm 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 251 device-mapper 252 nvme 253 virtblk 254 mdp