There are a number of possible reasons for installation failure, a brief list of common conditions and solutions is given below:

  • It is possible that your disc is partitioned in MBR mode, which is not supported. You will need to reformat the disk and partition it in GPT.
  • If you are trying to do a multi-boot installation and get an error, it is possible that your target partition has some kind of software write protection, such as Windows BitLocker, you need to check and make sure that the target disc is fully unlocked and that BitLocker is completely disabled in Windows.
  • If you are trying to do a multi-boot installation and then get an error at the end, it is possible that your EFI partition has a write protection condition that prevents the installation script from modifying the contents of your EFI partition. You need to check and that the BIOS or main operating system does not protect the EFI in any way, specifically, try the following and retry installation:
    • Adjust the status of CSM mode support within the BIOS setup (on if it was previously off, off if it was previously on)
    • Turn off any options related to “boot sequence lock” within the BIOS setup
    • Turn off any options related to “Secure boot” in the BIOS setup
    • Turn off the “Configure rEFInd” switch before performing the FydeOS installation. If the installation process is thus completed correctly, reboot into your main system and complete the modification of the UEFI boot entry by other means (e.g. using the EasyUEFI for Windows).
  • If you are attempting to install to unconventional media (SD card, removable drive, USB stick etc.), the installation process may fail due to the possibility of significant i/o bottlenecks on the target media. There is no solution to this situation and installation to unconventional media is not recommended.
  • If the installation process is stuck for a long time or if there are unexplained random errors, it is possible that the problem is caused by the installation media or the target media itself. It is well known that any storage device has a finite lifetime, especially on older, smaller USB sticks, mechanical hard drives from older computers or early SSD drives. This condition is difficult to troubleshoot for a specific problem, but if there is a random installation error that is not covered by any of the above conditions, consider replacing the media and trying again.