Question about disk dump (dd)
I have installed Ubuntu 11.04 on a USB key and customized it until it was small enough (1 Gb), this key has a capacity of 2.9 Gb.
Code:
:~$ df -h /dev/sdc1 Code:
sudo dd if=/dev/sdb1 of=backup.iso Why is this happening? |
The 'dd' command copies physical data, and does not access the filesystem on the device. As a result, you are creating an image of the physical media. The physical media is 2.9GB, so the copy is 2.9GB. If you'd like to only copy the data, you can use a tool that accesses the data via the filesystem, like rsync.
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