I'm not able to create a hotspot in order to share my wifi connection.
I use Linux Mint and I want connect my phone to WIFI through my laptop hotspot.
if you have wired connection then do this:
ifconfig(make sure your wlan in on) and there will be usually 3 subsections find where it writes something like "wl01" and look for HWaddr you should have something like this 74:de:3c:5i:1e:17 -> copy that addres and paste in "Device:"
Instructions for Mint 17:
Go to Main Menu -> Preferences -> Network Connections, click on Add and choose Wi-Fi. Choose a network name (SSID), Infrastructure mode. Go to to Wi-Fi Security and choose WPA/WPA2 Personal and create a password. Go to IPv4 settings and check that it is shared with other computers.
sudo vi /etc/NetworkManager/system-connections/YOUR_CONNECTION_NAME and change
mode=ap, then save the file.
Click on Network Manager near clocks and choose "Connect to hidden wireless network", then choose your connection.