Leap install to usb external HD?

Seeking advice re Leap install to USB external HD. Tried it and it crashed on attempt to install/configure GRUB. Have seen postings with contrary instructions. Would it work if I simply unplugged the internal HD and installed it on the external HD as sda, as one advises? If not, what’s the simplest way to accomplish the task?



Have here a notebook with two HDDs with Tumbleweed, both initially installed as internal devices, one of those I use externally to boot from with an mSATA cable (internal HDD disabled in BIOS when booting external, otherwise GRUB might get confused). Works just fine!

It should work, but you have to make sure that the bootloadercode is installed on the external disk entirely