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I have windows 10 and fedora 20 in my laptop(Dual boot). I wanna install fedora 24(by replace it on existing fedora),I made bootable usb disk from fedora 24 iso file with LiveUSB Creator, but during the installation, when I end my partitioning and mounting (eg /home, /boot and etc), I get this error:

No valid bootloader target device found. 
For UEFI installation , you must include an EFI System Partition on a 
GPT-formatted disk, mounted at /boot/efi.

My BIOS is legacy mode and it cannot be changed to UEFI mode(also for booting from usb, the usb is booted only in legacy mode). I installed fedora 20 years ago but now I can't install fedora 24 for this issue. I googled many hours and I tried many solutions, but still my problem is not solved, I am very tired now, Pls help me, tnx.

  • It sounds like you booted the USB drive in UEFI mode though. If it's not the case, it could be a bug of the installer. – Tom Yan Jul 5 '16 at 13:40
  • @TomYan Yeah, and I can't change it to legacy mode, because my bios doesn't supported. – ThisIsMe Jul 5 '16 at 13:46
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Finally I solved my problem with reinstall fedora 24 with DVD disk(not USB), because always my USB is booted in UEFI mode and I couldn't to change it to lagacy/BIOS mode(for my BIOS). In this case, when DVD is booted, the BIOS let me to choose a mode from UEFI mode and BIOS mode, I chose BIOS mode and installed it.

  • Yes, pressing F8 have 2 options to select from, one the UEFI and another normal. We can do the same without DVD. – Santosh Kumar Jan 13 '18 at 20:39
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In the bootloader options I selected the Legacy USB mode and not UEFI. Start the install process again and it works.

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