Read beginning of device/image files and generate checksum to quickly match if image and device are identical.
Replace if (input file) parameter with desired input file or device.
- Flash storage:
sudo dd if=/dev/sdo bs=512 count=1000 status=none iflag=direct |md5sum Optical storage: `sudo dd if=/dev/sr5 bs=2048 count=250 status=none iflag=direct
For image files (high-level), direct I/O efficiency is not required, and any block size is acceptable.
sudo dd if=/media/username/mountpount_name/directory/file.img bs=51200 count=1 status=none |md5sum
Read beginning of device/image files and generate checksum to quickly match if image and device are identical.
Replace `if` (input file) parameter with desired input file or device.
* Flash storage: `sudo dd if=/dev/sdo bs=512 count=1000 status=none iflag=direct |md5sum`
* Optical storage: `sudo dd if=/dev/sr5 bs=2048 count=250 status=none iflag=direct
* For image files (high-level), direct I/O efficiency is not required, and any block size is acceptable.
`sudo dd if=/media/username/mountpount_name/directory/file.img bs=51200 count=1 status=none |md5sum`
(post is archived)