Package: debian-installer (Lenny/Stable) I'd like to see dmsetup become a requirement for MD and LVM installer packages. LVM or MD in stripe mode should report, through dmsetup, parameters for tuning file systems like XFS when they are built on top of striped media. mkfs.xfs calls dmsetup as a system call and parses the output. I am not sure if other file systems auto-tune based on the target.