replace btrfs with ext4

This fixes https://github.com/archlinux/arch-boxes/issues/51

Signed-off-by: Christian Rebischke <[email protected]>

Author: Christian Rebischke

Diff for: http/install.sh

@@ -22,10 +22,10 @@ size=${swap_size_in_kilobytes}KiB, type=82
 EOF
 
 mkswap "${device}1"
-mkfs.btrfs -L "rootfs" "${device}2"
+mkfs.ext4 -L "rootfs" "${device}2"
 mount "${device}2" /mnt
 
-pacstrap /mnt base grub openssh sudo polkit btrfs-progs haveged
+pacstrap /mnt base grub openssh sudo polkit haveged
 swapon "${device}1"
 genfstab -p /mnt >> /mnt/etc/fstab
 swapoff "${device}1"