+(** get ext2/ext3/ext4 superblock details *)
+
+val blockdev_setro : t -> string -> unit
+(** set block device to read-only *)
+
+val blockdev_setrw : t -> string -> unit
+(** set block device to read-write *)
+
+val blockdev_getro : t -> string -> bool
+(** is block device set to read-only *)
+
+val blockdev_getss : t -> string -> int
+(** get sectorsize of block device *)
+
+val blockdev_getbsz : t -> string -> int
+(** get blocksize of block device *)
+
+val blockdev_setbsz : t -> string -> int -> unit
+(** set blocksize of block device *)
+
+val blockdev_getsz : t -> string -> int64
+(** get total size of device in 512-byte sectors *)
+
+val blockdev_getsize64 : t -> string -> int64
+(** get total size of device in bytes *)
+
+val blockdev_flushbufs : t -> string -> unit
+(** flush device buffers *)
+
+val blockdev_rereadpt : t -> string -> unit
+(** reread partition table *)
+
+val upload : t -> string -> string -> unit
+(** upload a file from the local machine *)
+
+val download : t -> string -> string -> unit
+(** download a file to the local machine *)
+
+val checksum : t -> string -> string -> string
+(** compute MD5, SHAx or CRC checksum of file *)
+
+val tar_in : t -> string -> string -> unit
+(** unpack tarfile to directory *)
+
+val tar_out : t -> string -> string -> unit
+(** pack directory into tarfile *)
+
+val tgz_in : t -> string -> string -> unit
+(** unpack compressed tarball to directory *)
+
+val tgz_out : t -> string -> string -> unit
+(** pack directory into compressed tarball *)
+
+val mount_ro : t -> string -> string -> unit
+(** mount a guest disk, read-only *)
+
+val mount_options : t -> string -> string -> string -> unit
+(** mount a guest disk with mount options *)
+
+val mount_vfs : t -> string -> string -> string -> string -> unit
+(** mount a guest disk with mount options and vfstype *)
+
+val debug : t -> string -> string array -> string
+(** debugging and internals *)
+
+val lvremove : t -> string -> unit
+(** remove an LVM logical volume *)
+
+val vgremove : t -> string -> unit
+(** remove an LVM volume group *)
+
+val pvremove : t -> string -> unit
+(** remove an LVM physical volume *)
+
+val set_e2label : t -> string -> string -> unit
+(** set the ext2/3/4 filesystem label *)
+
+val get_e2label : t -> string -> string
+(** get the ext2/3/4 filesystem label *)
+
+val set_e2uuid : t -> string -> string -> unit
+(** set the ext2/3/4 filesystem UUID *)
+
+val get_e2uuid : t -> string -> string
+(** get the ext2/3/4 filesystem UUID *)
+
+val fsck : t -> string -> string -> int
+(** run the filesystem checker *)
+
+val zero : t -> string -> unit
+(** write zeroes to the device *)
+
+val grub_install : t -> string -> string -> unit
+(** install GRUB *)
+
+val cp : t -> string -> string -> unit
+(** copy a file *)
+
+val cp_a : t -> string -> string -> unit
+(** copy a file or directory recursively *)
+
+val mv : t -> string -> string -> unit
+(** move a file *)
+
+val drop_caches : t -> int -> unit
+(** drop kernel page cache, dentries and inodes *)
+
+val dmesg : t -> string
+(** return kernel messages *)
+
+val ping_daemon : t -> unit
+(** ping the guest daemon *)
+
+val equal : t -> string -> string -> bool
+(** test if two files have equal contents *)