1.. SPDX-License-Identifier: GPL-2.0
2
3======================================
4Macintosh HFSPlus Filesystem for Linux
5======================================
6
7HFSPlus is a filesystem first introduced in MacOS 8.1.
8HFSPlus has several extensions to HFS, including 32-bit allocation
9blocks, 255-character unicode filenames, and file sizes of 2^63 bytes.
10
11
12Mount options
13=============
14
15When mounting an HFSPlus filesystem, the following options are accepted:
16
17  creator=cccc, type=cccc
18	Specifies the creator/type values as shown by the MacOS finder
19	used for creating new files.  Default values: '????'.
20
21  uid=n, gid=n
22	Specifies the user/group that owns all files on the filesystem
23	that have uninitialized permissions structures.
24	Default:  user/group id of the mounting process.
25
26  umask=n
27	Specifies the umask (in octal) used for files and directories
28	that have uninitialized permissions structures.
29	Default:  umask of the mounting process.
30
31  session=n
32	Select the CDROM session to mount as HFSPlus filesystem.  Defaults to
33	leaving that decision to the CDROM driver.  This option will fail
34	with anything but a CDROM as underlying devices.
35
36  part=n
37	Select partition number n from the devices.  This option only makes
38	sense for CDROMs because they can't be partitioned under Linux.
39	For disk devices the generic partition parsing code does this
40	for us.  Defaults to not parsing the partition table at all.
41
42  decompose
43	Decompose file name characters.
44
45  nodecompose
46	Do not decompose file name characters.
47
48  force
49	Used to force write access to volumes that are marked as journalled
50	or locked.  Use at your own risk.
51
52  nls=cccc
53	Encoding to use when presenting file names.
54
55
56References
57==========
58
59kernel source:		<file:fs/hfsplus>
60
61Apple Technote 1150	https://developer.apple.com/legacy/library/technotes/tn/tn1150.html
62