I have recently built a new pc and have moved over my drive with Endevour os. However, when I plug in the drive the system will reach bios screen but clicking F2 won’t get you to the menu until the drive is removed. Any ideas or hints as to how to fix it?
Are they identical computers? If not, you will likely have issues with drivers and such. Is it Nvidia? Same card as before? Was the drive encrypted? You will also need to chroot abs reinstall grub. It’s not impossible, but there could be quite a few things you need to do to make it so.