MacBook Air 2011 release , OS recovery

I formatted my hard disk in internet recovery (disk utility) but it had a partition so I can't boot into the main disk all I see is APPLE SSD HTA..e.t.c which is 60 gb and I can't see the main partition in disk utility plus I have no startup disk. Terminal's sudo command is also not working, is there anything I can do to gain root and erase all partitions?..it is still in recovery mode