Install debian iso with usb

Creating a startup disk is simple in linux. No third party apps like start-up disk creator or unetbootin is required. Linux base command dd is enough.

• Download a debian version from this site https://www.debian.org/CD/http-ftp/#stable
• Mine is i386 so I downloaded http://cdimage.debian.org/debian-cd/7.5.0/i386/iso-cd/debian-7.5.0-i386-CD-1.iso
• Open a terminal and run sudo dmesg -c to clear kernel logs
• Connect the usb and then recheck dmesg in terminal (This time without -c option)
• there will be something like sdc sdc1 or sdbs db1 in the log.
• Replace the x with c or b in the following command and execute it. 
• dd bs=4M if=/path/to/archlinux.iso of=/dev/sdx && sync

That is it. A base kernel will get installed. While installing provide an internet connection so that it will automatically fetch required packages online. The installation will check for available connections ( Ethernet/WiFi ) while installing.

I think this works with almost all main linux distros

Ref: https://wiki.archlinux.org/index.php/Putting_installation_media_on_a_USB_key