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Description of problem: If I use F16 to write a Fedora Live image to usb it doesn't boot my Lenovo Thinkpad T420s. Using livecd-tools-15.11-1.fc15 it boots fine. Version-Release number of selected component (if applicable): livecd-tools-16.9-1.fc16 How reproducible: 100% Steps to Reproduce: 1. Write Fedora Live to USB with livecd-tools-16.9-1.fc16. 2. Try to boot T420s laptop. 3. Downgrade to livecd-tools-15.11-1.fc15... 4. Try to boot Live on laptop again Actual results: 2. doesn't get to grub? 4. boots normally Expected results: 2. To boot live image. Additional info: This laptop only seems to support GPT with UEFI. (--efi boot works ok with livecd-tools-16.9-1.fc16.) Maybe there is some different in partition table handling between 15.11 and 16.9?
Sorry the information about 15.11 with F16 is misleading: it doesn't boot either. Maybe it is another difference between f15 and f16. I am pretty sure before I upgraded to F16, the images I wrote with livecd-tools booted ok on my new laptop.
Some Thinkpads have problems booting from GPT labeled disks. When you wrote the USB stick did you use --format --reset-mbr? If not it might be possible that it was trying to boot from non-efi on GPT labeled USB and failing. running: parted -s /dev/USBDEV p on the working and non-working USB sticks would also be helpful.