#!/bin/sh -e

# Debian (live-boot)
PLACES="$PLACES /cdrom/live/filesystem.btrfs"
# Ubuntu (casper)
PLACES="$PLACES /cdrom/casper/filesystem.btrfs"

btrfs_prepare() {
	ANNA_QUIET=1 anna-install btrfs-modules || true

	if [ -x /sbin/depmod ]; then
		depmod -a > /dev/null 2>&1 || true
	fi

	modprobe btrfs || true
	modprobe loop || true

	mkdir -p /mnt
	umount /mnt > /dev/null 2>&1 || true
	if ! mount -t btrfs -o loop $place /mnt; then
		error "$place has failed to be mounted as btrfs."
		exit 1
	fi

	cd /mnt
}

btrfs_teardown() {
	umount -d /mnt > /dev/null 2>&1 || true
}

btrfs_count() {
	echo `print-inodes /mnt`
}