+external aug_ls : t -> string -> string array = "ocaml_guestfs_aug_ls"
+external rm : t -> string -> unit = "ocaml_guestfs_rm"
+external rmdir : t -> string -> unit = "ocaml_guestfs_rmdir"
+external rm_rf : t -> string -> unit = "ocaml_guestfs_rm_rf"
+external mkdir : t -> string -> unit = "ocaml_guestfs_mkdir"
+external mkdir_p : t -> string -> unit = "ocaml_guestfs_mkdir_p"
+external chmod : t -> int -> string -> unit = "ocaml_guestfs_chmod"
+external chown : t -> int -> int -> string -> unit = "ocaml_guestfs_chown"
+external exists : t -> string -> bool = "ocaml_guestfs_exists"
+external is_file : t -> string -> bool = "ocaml_guestfs_is_file"
+external is_dir : t -> string -> bool = "ocaml_guestfs_is_dir"
+external pvcreate : t -> string -> unit = "ocaml_guestfs_pvcreate"
+external vgcreate : t -> string -> string array -> unit = "ocaml_guestfs_vgcreate"
+external lvcreate : t -> string -> string -> int -> unit = "ocaml_guestfs_lvcreate"
+external mkfs : t -> string -> string -> unit = "ocaml_guestfs_mkfs"
+external sfdisk : t -> string -> int -> int -> int -> string array -> unit = "ocaml_guestfs_sfdisk_byte" "ocaml_guestfs_sfdisk"
+external write_file : t -> string -> string -> int -> unit = "ocaml_guestfs_write_file"
+external umount : t -> string -> unit = "ocaml_guestfs_umount"
+external mounts : t -> string array = "ocaml_guestfs_mounts"
+external umount_all : t -> unit = "ocaml_guestfs_umount_all"
+external lvm_remove_all : t -> unit = "ocaml_guestfs_lvm_remove_all"
+external file : t -> string -> string = "ocaml_guestfs_file"
+external command : t -> string array -> string = "ocaml_guestfs_command"
+external command_lines : t -> string array -> string array = "ocaml_guestfs_command_lines"
+external stat : t -> string -> stat = "ocaml_guestfs_stat"
+external lstat : t -> string -> stat = "ocaml_guestfs_lstat"
+external statvfs : t -> string -> statvfs = "ocaml_guestfs_statvfs"
+external tune2fs_l : t -> string -> (string * string) list = "ocaml_guestfs_tune2fs_l"
+external blockdev_setro : t -> string -> unit = "ocaml_guestfs_blockdev_setro"
+external blockdev_setrw : t -> string -> unit = "ocaml_guestfs_blockdev_setrw"
+external blockdev_getro : t -> string -> bool = "ocaml_guestfs_blockdev_getro"
+external blockdev_getss : t -> string -> int = "ocaml_guestfs_blockdev_getss"
+external blockdev_getbsz : t -> string -> int = "ocaml_guestfs_blockdev_getbsz"
+external blockdev_setbsz : t -> string -> int -> unit = "ocaml_guestfs_blockdev_setbsz"
+external blockdev_getsz : t -> string -> int64 = "ocaml_guestfs_blockdev_getsz"
+external blockdev_getsize64 : t -> string -> int64 = "ocaml_guestfs_blockdev_getsize64"
+external blockdev_flushbufs : t -> string -> unit = "ocaml_guestfs_blockdev_flushbufs"
+external blockdev_rereadpt : t -> string -> unit = "ocaml_guestfs_blockdev_rereadpt"