Restoring a split image created by dcfldd

Question

Say an image is generated by dcfldd using the following command:

dcfldd if=/dev/sourcedrive hash=md5,sha256 hashwindow=10G md5log=md5.txt \
sha256log=sha256.txthashconv=after bs=512 conv=noerror,sync split=10G \
splitformat=aa of=driveimage.dd

This would create a series of 10GB images named driveimage.dd.aa, driveimage.dd.ab, driveimage.dd.ac etc.

What would be the command to restore the split image to the source drive? I'm hoping it would be as simple as:

dcfldd if=driveimage.dd of=/dev/sourcedrive

Would dcfldd then automatically detect all files in the directory containing driveimage.dd and stitch them together again?

Answer 1

You can recombine the images easily with cat, and pipe that to dcfldd to get the nice status output.

cat driveimage.dd.* | dcfldd of=/dev/sourcedrive