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