August 21, 2016

Raid - error mdadm

Hello friends I wonder if any of you can help me with a small error that I am having to try to create a mirror raid drive.
* Instaldo mdadm package (Yes)

When you enter the fdisk -l command
I have:

Device Boot Start End Blocks Id System
/ Dev / sda1 * 2048 37,750,783 18,874,368 83 Linux
/ Dev / sda2 37,752,830 41,940,991 2,094,081 5 Extended
/ Dev / sda3 75694080 79790079 2048000 83 Linux
/ Dev / sda4 79790080 83886079 2048000 83 Linux
/ Dev / sda5 37,752,832 41,940,991 2,094,080 82 Linux swap / Solaris

to enter the camando: mdadm --create --verbose / dev / md0 --level = mirror --raid-devices = 2 / dev / sda1
 
I get this error down.
 
You have not given enough devices (real or missing) to create this array

Can someone help me?
What am I doing wrong?

Thank you very much in advance!

Wellington

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