ubuntu@ubuntu:~$ sudo lsblk -o NAME,FSTYPE,SIZE,MOUNTPOINT,LABEL
NAME   FSTYPE     SIZE MOUNTPOINT LABEL
sda             465.8G            
├─sda1 ntfs       100M            System Reserved
├─sda2 ntfs     194.6G            
├─sda3              1K            
├─sda5 ext4     255.1G            
└─sda6 swap      15.9G [SWAP]     
sdb             931.5G            
├─sdb1 vfat       100M            bakup
├─sdb2          194.6G            
└─sdb3              1K            
sdc                 2G            
└─sdc1 vfat         2G /cdrom     
loop0  squashfs 962.1M /rofs      
ubuntu@ubuntu:~$ sudo dd if=/dev/sda of=/dev/sdb
^C692573+0 records in
692573+0 records out
354597376 bytes (355 MB) copied, 29.6539 s, 12.0 MB/s
ubuntu@ubuntu:~$ sudo dd if=/dev/sda of=/dev/sdb bs=512 conv=noerror,sync
dd: error writing ‘/dev/sdb’: Input/output error
2685557+0 records in
2685556+0 records out
1375004672 bytes (1.4 GB) copied, 111.097 s, 12.4 MB/s
ubuntu@ubuntu:~$