[SOLVED] XBMC unable to find /dev/sda

[rasho]

Hello!

I've been installing Xbian on raspberry PI 2 and I tried to connect my 500GB WD Passport hard drive to it. When I power it up xbian loads just fine but drive sounds like it would try to run over and over again. I am unable to see the drive anywhere in Xbian. Then I Exit from xbian and linux command shows me error: Unable to find '/dev/sda'.

I thought it is the problem with not enough current from adapter (5V, 2A), but it should be enough. I hope I make any sense with my english and that there is someone that can help me with my problem.