Copy a linux Hard Disk

For more information about linux hard disk copy-general Linux technology-Linux technology and application, see the following. I usually copy it like this.

Assume that the source Disk/dev/hda, the target disk/dev/hdb

I usually clear and format hdb first. Of course, it may be okay if it is not formatted.

Then # cat/dev/hda>/dev/hdb

In this way, you can complete the test, and even the partitions are the same.

Note: perform hard disk copy in linux and use dd if =/dev/hda of =/dev/hdb. As a result, the no space left on device error occurs, and the copy fails.