Originally Posted by yancek
Again, the Fedora 22 xfce spin IS a live image. To be sure I remembered correctly, I just made a new Fedora 22 XFCE live usb, and I'm posting this from the result.
* Found a loose 4gb usb
* downloaded the 64bit Fedora 22 XFCE iso from the fedora spins page
* from a running f22 computer, did dd if=Fedora..whatever.iso of=/dev/sdc (/dev/sdc was my usb device, make sure you check the target device id)
* when dd completed, took the flash drive to an older laptop with traditional bios, booted, connected to my wifi network, and opened Midori to visit linuxquestions.org and make this post.
If you need to customize the live os, use other tools. With this default configuration you have an xfce desktop with some commonly used apps, and you can use dnf to install some additional apps. Like a CD media live os, anything you customize/insstall during your session goes away when you reboot. I just installed mc.
This also boots on my nice new i7 touch laptop, but os itself doesn't run properly, fedora doesn't seem understand the Geoforce 4gb switchable graphics in the new laptop
Update: The f22 live usb worked fine on the I7 touch laptop, booted with secure boot enabled and apparently whatever issue I saw with the graphics driver a couple months ago was either my fault, or has been cured. Everything worked very well booted from the usb, including touch.