Не думаю. Чистая система так себя ведет.
~ # ls -l /dev | grep "^c" | grep " 4,"
crw------- 1 root root 4, 64 Jan 1 1970 ttyS0
crw------- 1 root root 4, 65 Jan 1 1970 ttyS1
Тоже самое, что и у вас.
~ # ls -l /dev
crw------- 1 root root 254, 0 Jan 1 1970 aci0
crw------- 1 root root 254, 1 Jan 1 1970 aci1
crw------- 1 root root 254, 2 Jan 1 1970 aci2
crw------- 1 root root 254, 3 Jan 1 1970 aci3
drwxr-xr-x 3 root root 60 Apr 29 14:43 bus
crw------- 1 root root 5, 1 Jan 1 1970 console
crw-r----- 1 root root 10, 63 Apr 29 14:43 cpu_dma_latency
crw-rw-rw- 1 root root 1, 7 Jan 1 1970 full
crw-rw-rw- 1 root root 10, 229 Jan 1 1970 fuse
crw------- 1 root root 220, 0 Jan 1 1970 hwnat0
crw------- 1 root root 1, 2 Jan 1 1970 kmem
crw------- 1 root root 1, 11 Jan 1 1970 kmsg
srw-rw-rw- 1 root root 0 Jan 1 1970 log
crw-r----- 1 root root 10, 237 Apr 29 14:43 loop-control
brw------- 1 root root 7, 0 Jan 1 1970 loop0
brw------- 1 root root 7, 1 Jan 1 1970 loop1
brw------- 1 root root 7, 2 Jan 1 1970 loop2
brw------- 1 root root 7, 3 Jan 1 1970 loop3
brw------- 1 root root 7, 4 Jan 1 1970 loop4
brw------- 1 root root 7, 5 Jan 1 1970 loop5
brw------- 1 root root 7, 6 Jan 1 1970 loop6
brw------- 1 root root 7, 7 Jan 1 1970 loop7
crw------- 1 root root 1, 1 Jan 1 1970 mem
crw------- 1 root root 90, 0 Jan 1 1970 mtd0
crw-r----- 1 root root 90, 1 Apr 29 14:43 mtd0ro
crw------- 1 root root 90, 2 Jan 1 1970 mtd1
crw-r----- 1 root root 90, 3 Apr 29 14:43 mtd1ro
crw------- 1 root root 90, 4 Jan 1 1970 mtd2
crw-r----- 1 root root 90, 5 Apr 29 14:43 mtd2ro
crw------- 1 root root 90, 6 Jan 1 1970 mtd3
crw-r----- 1 root root 90, 7 Apr 29 14:43 mtd3ro
crw------- 1 root root 90, 8 Jan 1 1970 mtd4
crw-r----- 1 root root 90, 9 Apr 29 14:43 mtd4ro
crw------- 1 root root 90, 10 Jan 1 1970 mtd5
crw-r----- 1 root root 90, 11 Apr 29 14:43 mtd5ro
crw------- 1 root root 90, 12 Jan 1 1970 mtd6
crw-r----- 1 root root 90, 13 Apr 29 14:43 mtd6ro
crw------- 1 root root 90, 14 Jan 1 1970 mtd7
crw-r----- 1 root root 90, 15 Apr 29 14:43 mtd7ro
crw------- 1 root root 90, 16 Jan 1 1970 mtd8
crw-r----- 1 root root 90, 17 Apr 29 14:43 mtd8ro
crw------- 1 root root 90, 18 Jan 1 1970 mtd9
crw-r----- 1 root root 90, 19 Apr 29 14:43 mtd9ro
drwxr-xr-x 2 root root 240 Jan 1 1970 mtdblock
brw-r----- 1 root root 31, 0 Apr 29 14:43 mtdblock0
brw-r----- 1 root root 31, 1 Apr 29 14:43 mtdblock1
brw-r----- 1 root root 31, 2 Apr 29 14:43 mtdblock2
brw-r----- 1 root root 31, 3 Apr 29 14:43 mtdblock3
brw-r----- 1 root root 31, 4 Apr 29 14:43 mtdblock4
brw-r----- 1 root root 31, 5 Apr 29 14:43 mtdblock5
brw-r----- 1 root root 31, 6 Apr 29 14:43 mtdblock6
brw-r----- 1 root root 31, 7 Apr 29 14:43 mtdblock7
brw-r----- 1 root root 31, 8 Apr 29 14:43 mtdblock8
brw-r----- 1 root root 31, 9 Apr 29 14:43 mtdblock9
drwxr-xr-x 2 root root 60 Jan 1 1970 net
crw-r----- 1 root root 10, 62 Apr 29 14:43 network_latency
crw-r----- 1 root root 10, 61 Apr 29 14:43 network_throughput
crw------- 1 root root 210, 0 Jan 1 1970 ntc
crw-rw-rw- 1 root root 1, 3 Jan 1 1970 null
crw------- 1 root root 209, 0 Jan 1 1970 phr
crw------- 1 root root 1, 4 Jan 1 1970 port
crw------- 1 root root 108, 0 Jan 1 1970 ppp
crw-rw-rw- 1 root root 5, 2 Apr 29 14:50 ptmx
drwxr-xr-x 2 root root 0 Jan 1 1970 pts
crw-rw-rw- 1 root root 1, 8 Jan 1 1970 random
drwxr-xr-x 2 root root 180 Jan 1 1970 rd
crw------- 1 root root 253, 0 Jan 1 1970 rdm0
brw-r----- 1 root root 8, 0 Apr 29 14:43 sda
brw-r----- 1 root root 8, 1 Apr 29 14:43 sda1
crw-r----- 1 root root 21, 0 Apr 29 14:43 sg0
crw------- 1 root root 153, 0 Jan 1 1970 spi0
crw------- 1 root root 153, 1 Jan 1 1970 spi1
crw------- 1 root root 153, 2 Jan 1 1970 spi2
crw------- 1 root root 153, 3 Jan 1 1970 spi3
drwxr-xr-x 2 root root 80 Jan 1 1970 tts
crw-rw-rw- 1 root root 5, 0 Jan 1 1970 tty
crw-r----- 1 root root 253, 0 Apr 29 14:50 ttyLTE0
crw------- 1 root root 4, 64 Jan 1 1970 ttyS0
crw------- 1 root root 4, 65 Jan 1 1970 ttyS1
crw-r----- 1 root root 254, 0 Apr 29 14:50 ueservice0
crw-rw-rw- 1 root root 1, 9 Jan 1 1970 urandom
crw-r----- 1 root root 189, 0 Apr 29 14:43 usbdev1.1
crw-r----- 1 root root 189, 1 Apr 29 14:43 usbdev1.2
crw-r----- 1 root root 189, 128 Apr 29 14:43 usbdev2.1
crw-r----- 1 root root 189, 136 Apr 29 14:50 usbdev2.9
crw------- 1 root root 109, 0 Jan 1 1970 vdsl
crw-rw-rw- 1 root root 1, 5 Jan 1 1970 zero