If you both want to flash it encrypted, I suggest doing so with this branch re-encrypt and resize the luks partition (!13) · Merge requests · Librem5 / librem5-flash-image · GitLab as it should generate a new encryption key (the default passphrase is still 123456, that doesn’t change). Though you’ll need to make sure that you have cryptsetup-reencrypt and uuu installed, and unfortunately the flash needs to be run as root. This avoids the lengthy process seen in the other thread.
I did so this past weekend, and it worked for me.
On the device you plan to flash from, this is what I did, and be sure to follow the instructions it gives you once the image is downloaded.
git clone https://source.puri.sm/angus.ainslie/librem5-flash-image.git
cd librem5-flash-image
git checkout luks-flash
sudo ./scripts/librem5-flash-image --dist byzantium --variant luks --skip-cleanup
At the moment yes, but phosh 1.15 should be available for update either tomorrow or the day after, and this adds a keyboard button to the lockscreen numberpad to open it up. Don’t change your password to non numeric until you see that in the lock screen.