BIP KB Tag: dd

How To Use DD Over Netcat Vs SSH

dd is a very handy shell command for writing raw data blocks from one place to another. Since it can read directly from raw device files, it is very useful for copying entire partitions or drives from one location to another. One traditional way to get this drive data from one location to another is to pipe DD's output stream over SSH to a shell on a remote machine which in turn uses dd to pipe it to a given output file/device. This i...
By tabitha, January 24, 2015

How To Remove RAID metadata from a Hard Disk

Sometimes a hardware RAID controller or fakeraid (BIOS) can leave RAID metadata that makes it impossible to install Windows or Linux, or it installs correctly, but causes a kernel panic or a 0xb7 blue screen error on the first boot. The only method we could find to delete the metadata *quickly* is to zero out the last 512KB of data on the disk using the following command: dd if=/dev/zero of=$YOUR_DEV bs=512 seek=$(( $...
By BIP, September 1, 2016

How do I permanently shred wipe erase scrub a hard disk?

To securely shred wipe erase scrub data is not as easy as you may think. When you delete a file using the default commands of the operating system (for example “rm” in Linux/BSD/MacOS/UNIX or “del” in DOS or emptying the recycle bin in WINDOWS) the operating system does NOT delete the file, the contents of the file remains on your hard disk. The only way to shred wipe erase scrub and make recovering of your sensit...
By wen, September 2, 2016