Re: fedora 25 installation (btrfs, encrypted /) fails
question, are you first deleting all the F23 partitions, and then recreating them for F25 ?
I am suspecting your F25 is trying to somehow mount an encrypted LUKS partition without the proper password.
I would delete all previous partitions, and recreate them.
ALSO, on a personal note, I decided against encrypting my / partition, cuz if I go through an airport checkpoint, and they make me boot the machine, you will immediately see the LUKS PASSWORD DIALOG, and not only they can force you to give them your password, but you are forever entered into a "possible terrorist" list.
So, the way I do it, is always create the / partition with say 50GB (unencrypted), and that's where the OS goes, and there shouldn't be anything "personal" there. And create a dummy user, like "master".
Then I leave the rest of the disk empty first , until everything is installed. Once installed, I create myself a new partition on the remainder of the disk with gparted, and then I either LUKS or TRUECRYPT that, but I DO NOT insert that partition in /etc/fstab. Then after booting, I hit CTRL-ALT-F2, and I log in as root, and mount the /home partition (on top of the existing /home folder), and that is where yo have all your encrypted data with all your plans for world domination etc.
makes sense ?