I was following this tutorial: http://webiopi.trouch.com/Tutorial_Serial.html so I can make serial communication using the On-board serial UART
I couldn't find the file /etc/inittab, I skipped that step because I read that this file doesn't exist in Jessie.
Then I edited /boot/cmdline.txt and it says that I need to remove references to ttyAMA0.
This is what I find in that file:
dwc_otg.lpm_enable=0 console=serial0,115200 console=tty1 root=/dev/mmcblk0p7 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait
Should I erase the serial0? I got really confused by this and I'm not sure what to do.