Problem about upgrade to 10.5.2

[note]

I use iATKOS 10.5.1

and upgrade to 10.5.2

by this instruction "http://netkas.org/?p=50"

 

But After reboot

I still got Error Message " Still waiting for root device"

 

Anyone has experience on this case or successful to upgrade to 10.5.2 ? sir

Would you like to suggest/help me ? sir

 

Thank you very much

note