Thanks to the work of Kerim Gueney, the new release of FAI 4.3 now has support for btrfs in the FAI partitioning tool setup-storage. Here's a simple example of the configuration file for disk_config/.
disk_config disk1 primary /boot 500 ext4 rw primary - 2048 - - disk_config disk2 primary - 2048 - - disk_config disk3 sameas:disk2 disk_config disk4 sameas:disk2 disk_config btrfs btrfs raid1 / disk1.2,disk2.1 noatime,subvol=@/ btrfs raid1 /home disk3.1,disk4.1 subvol=@home,noatime All raid levels of btrfs are supported in setup-storage, and you can also hand over additional parameters to mkfs.btrfs by using the createopts= option in the disk_config file. This release of FAI is ready-to-go for jessie, but can also be used with wheezy. You will get the new version if you add this line to your sources.list file deb http://fai-project.org/download jessie koeln -- regards Thomas