vbatts@melisma:~/src/arm-image-installer$ sudo ./arm-image-installer --image=./Fedora-LXDE-armhfp-32-1.6-sda.raw.xz --media=/dev/mmcblk0 --target=rpi3 --addkey=/home/vbatts/.ssh/authorized_keys

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= Selected Image:
= ./Fedora-LXDE-armhfp-32-1.6-sda.raw.xz
= Selected Media : /dev/mmcblk0
= U-Boot Target : rpi3
= SSH Public Key /home/vbatts/.ssh/authorized_keys will be added.
=====================================================

*****************************************************
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******** WARNING! ALL DATA WILL BE DESTROYED ********
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 Type 'YES' to proceed, anything else to exit now

= Proceed? YES
umount: /dev/mmcblk0: not mounted.
umount: /dev/mmcblk0p1: not mounted.
umount: /dev/mmcblk0p2: not mounted.
umount: /dev/mmcblk0p3: not mounted.
= Writing:
= ./Fedora-LXDE-armhfp-32-1.6-sda.raw.xz
= To: /dev/mmcblk0 ....
4689739776 bytes (4.7 GB, 4.4 GiB) copied, 68 s, 69.0 MB/s
0+572655 records in
0+572655 records out
4815060992 bytes (4.8 GB, 4.5 GiB) copied, 339.918 s, 14.2 MB/s
= Writing image complete!
  1 logical volume(s) in volume group "data" now active
./arm-image-installer: 470: [[: not found
= No U-Boot files found for rpi3.
= Adding SSH key to authorized keys.
./arm-image-installer: 516: cannot create /tmp/root/root/.ssh/authorized_keys: Directory nonexistent
chmod: cannot access '/tmp/root/root/.ssh/': No such file or directory
./arm-image-installer: 548: getenforce: not found

= Installation Complete! Insert into the rpi3 and boot.
vbatts@melisma:~/src/arm-image-installer$ rmdir: failed to remove '/tmp/boot': Device or resource busy
rmdir: failed to remove '/tmp/fw': Device or resource busy