Use ap-hotspot to establish an AP on ubuntu 14.04

# I tried to establish AP on ubuntu 14.04 using ap-hotspot but failed.

# I use the following method to sucessfuly establish an AP.

# ref: http://jingyan.baidu.com/article/d8072ac4414864ec95cefdaf.html
1.

$ sudo apt-get update

#remove buggy hostapd

$ sudo apt-get remove hostapd

2. download bug free package

$ cd /tmp

$ wget http://archive.ubuntu.com/ubuntu/pool/universe/w/wpa/hostapd_1.0-3ubuntu2.1_amd64.deb
$ sudo dpkg -i hostapd*.deb

$ sudo apt-mark hold hostapd

3. install ap-hotspot

$ sudo apt-get install ap-hotspot

4. start service

$ sudo ap-hotspot configure

$ sudo ap-hotspot start

5. stop service

$ sudo ap-hotspot stop