QA:Testcase partitioning custom btrfs

Associated release criterion
This test case is associated with the Fedora_40_Final_Release_Criteria#disk-layouts release criterion. If you are doing release validation testing, a failure of this test case may be a breach of that release criterion. If so, please file a bug and nominate it as blocking the appropriate milestone, using the blocker bug nomination page.

Description

A complete installation using the systems physical devices for the Btrfs filesystem. The detailed plan about btrfs filesystem on Fedora 16 can be found at F16BtrfsDefaultFs

How to test

1. Boot the installer using any available means (netinst/boot.iso, PXE, or DVD.iso)
2. Proceed to the installation partition screen by selecting appropriate defaults
3. At the disk partitioning screen, choose Create Custom Layout, and select Next
4. Place the root filesystem(/) on an btrfs formatted partition
5. Continue installation, choosing all provided defaults and selecting Next

Expected Results

1. Anaconda completes successfully
2. Reboot successfully into installed system
3. Confirm that / is formatted as btrfs