Before I have setted up my encrypted partitions I had to fill them with random sequention of data.
I’ve noticed that dd if=/dev/urandom of=DEVICE is very slow. It has 3-4 MB/second on my computer.
I wanted to make it faster. Here is my solution:
1. Create in tmpfs located in RAM memory large file (about 100 MB) made of pseudo-random sequence (/dev/urandom).
2. Write this file from memory sequentially to the disk.
Speed of this approach is even 34 MB/s – 10 times faster!!.
Unfortunately, this aproach might not be as secure as dd if=/dev/urandom of=DEVICE
Before you do anything backup your data and be sure what are you doing!!!
My implementation: Read More
