I’m running Linux, I used Etcher (version 1.5.113) to flash an image from a URL onto an SD card. It went to 100% completion without any issue. I know the image works. My file manager reads the SD just fine, can see 2 partitions, and mounts and opens them just fine. The SD card is not showing up in my boot options and I can’t get it to boot.
What are the next steps I should try? Anything basic I may have forgotten to do?
Thank you for taking the time to read this.