But this doesn't seem to be the case here. I assumed UEFI is some kind of standard that's not dependent on specific hardware and thus, if the same image created with the same program boots on one device, should also boot on another. I have used Etcher, and the bootable drive will only boot on Legacy boot for me, and not when UEFI is enabled. I have seen no issues or had to do anything special as far as i can recall in that time. Neon images have been working on uefi as long as it has existed, and for as long as I have been using it (2016). If you have been using the same USB stick for a while, for many images, it might be worth zeroing out at least the beginning of the disk and any potential mbr that might accidentally still be present, if not zeroing the whole drive, perhaps.Ĭlaydoh wrote:All my systems boot UEFI/GPT, and I most often have used dd on the command line in recent years, but do very often use and recommend Etcher, and have been using this application successfully many years now, for all ISO images. * Is the computer on which you create the bootable drive, booting on UEFI itself, with GPT format for its partitions?Īll my systems boot UEFI/GPT, and I most often have used dd on the command line in recent years, but do very often use and recommend Etcher, and have been using this application successfully many years now, for all ISO images.

* What program do you use to create the bootable drive? And do you specify UEFI as the target system? Since it does work for you, may I check these few details about how you create your bootable drive: As I mentioned, though, it boots without any issues on the Legacy boot mode. None works with a black screen shown that goes on without any change for as long as I forcefully power off. I have tried both: 1- setting the external drives as the preferred boot option, over the internal drive, and 2- pressing the appropriate F button to explicitly tell the computer to boot from the external USB drive. On my old laptop which is set to boot USB first (also UEFI), I have no issues. This system doesn't like booting to an OS that hasn't been previously assigned a slot in the boot order, so i usually have to use the f-key to boot an install ISO. Claydoh wrote:When booting the system in UEFI mode, what shows up when you hit the appropriate f-key to bring up boot options? On my PC it is F11, for example.

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