iotadmin@localhost:~$ sudo mount -t jffs2 /dev/mtdblock1 /mnt/sflash
mount: /mnt/sflash: can’t read superblock on /dev/mtdblock1.
iotadmin@localhost:~
I have a block device as below:
iotadmin@localhost:~$ lsblk | grep mtd
mtdblock0 31:0 0 16M 1 disk
mtdblock1 31:1 0 4M 0 disk
iotadmin@localhost:~$
iotadmin@localhost:~$ cat /proc/mtd
dev: size erasesize name
mtd0: 01000000 00001000 “BIOS”
mtd1: 00400000 00001000 “PDR”
iotadmin@localhost:~$
iotadmin@localhost:~$ ls -l /dev | grep mtd
crw------- 1 root root 90, 0 Feb 21 11:50 mtd0
crw------- 1 root root 90, 1 Feb 21 11:50 mtd0ro
crw------- 1 root root 90, 2 Feb 21 11:50 mtd1
crw------- 1 root root 90, 3 Feb 21 11:50 mtd1ro
brw-rw---- 1 root disk 31, 0 Feb 21 11:50 mtdblock0
brw-rw---- 1 root disk 31, 1 Feb 21 11:50 mtdblock1
iotadmin@localhost:~$
iotadmin@localhost:~$ uname -a
Linux localhost 4.15.18+ #1 SMP Fri Feb 21 03:27:56 PST 2020 x86_64 x86_64 x86_64 GNU/Linux
iotadmin@localhost:~$