New answers tagged dd
The controller is newer than the OS you're installing. Use the newest release of CentOS, and you'll have the appropriate drivers necessary to install the operating system and recognize the hardware.
The /zero-Tag is actually a file name. The command just copies zeros from the virtual File /dev/zero (infinite number of zeros) into /mnt/hdb/zero until the disk is full, or some other error occurs. This is why you have to remove the file /mnt/hdb/zero after that in order to regain the unused space. However, a better way to fill free space with zeros (on ...
Well, if I see correctly then you are formatting the image you took earlier using mkfs.ext4 /dev/loop0. Why are you doing that? Don't do that and the data will be there.
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