ntfs-3g.usermap(8)

1NTFS-3G.USERMAP(8)          System Manager's Manual         NTFS-3G.USERMAP(8)
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NAME

6       ntfs-3g.usermap - NTFS Building a User Mapping File
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SYNOPSIS

9       ntfs-3g.usermap windows-system-device [other-ntfs-device...]
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11       Where windows-system-device is the device containing the Windows system
12       whose users are to be mapped to current Linux system.
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14       And other-ntfs-device is another device containing files which  are  to
15       be  accessed both by the Windows mentioned above and current Linux sys‐
16       tem.
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18       the ntfs-3g.usermap command must be started as root, and the designated
19       devices must not be mounted.
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21       Typing  ntfs-3g.usermap  with no args will display a summary of command
22       arguments.
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DESCRIPTION

25       ntfs-3g.usermap creates  the  file  defining  the  mapping  of  Windows
26       accounts to Linux logins for users who owns files which should be visi‐
27       ble from both Windows and Linux.
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29       It relies on existing files which were created on  Windows,  trying  to
30       locate  significant  files  and asking which Linux user or group should
31       own them. When a Linux owner or group is requested, the reply may be :
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33       - the uid or gid (numeric or symbolic) of Linux owner or group  of  the
34       file.
35              In that situation, no more file with the same Windows owner will
36              be selected.
37       - or no answer, when not able to define the owner or group.
38              In that situation another file owned by the same Windows user or
39              group may be selected later so that a mapping can be defined.
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41       The  mappings  for  standard  Windows users, such as "Administrator" or
42       "All Users" are defined implicitly. As a  consequence  a  user  mapping
43       should never be defined as Linux root.
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45       When  there  are  no more significant files, ntfs-3g.usermap create the
46       mapping file into the file UserMapping in the current  directory.  This
47       file  has  to  be moved to the hidden directory .NTFS-3G in the root of
48       all the NTFS file systems to be shared between Windows and Linux.  This
49       requires  the  file system to be mounted, but the created file will not
50       be taken into account if not present at mount  time,  which  means  the
51       file  system  has to be unmounted and mounted again for the new mapping
52       file to be taken into account.
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OPTIONS

55       No option is defined for ntfs-3g.usermap.
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EXAMPLES

58       Map the users defined on the Windows system present on /dev/sda1 :
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60              ntfs-3g.usermap /dev/sda1
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63       A detailed example, with screen displays is available on  http://pages‐
64       perso-orange.fr/b.andre/usermap.html
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EXIT CODES

67       ntfs-3g.usermap exits with a value of 0 when no error was detected, and
68       with a value of 1 when an error was detected.
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KNOWN ISSUES

71       Please see
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73              http://www.tuxera.com/community/ntfs-3g-faq/
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75       for common questions and known issues.  If you would find a new one  in
76       the latest release of the software then please send an email describing
77       it  in  detail.  You  can  contact  the   development   team   on   the
78       ntfs-3g-devel@lists.sf.net address.
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AUTHORS

81       ntfs-3g.secaudit has been developed by Jean-Pierre André.
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THANKS

84       Several people made heroic efforts, often over five or more years which
85       resulted the ntfs-3g driver. Most  importantly  they  are  Anton  Alta‐
86       parmakov,  Richard  Russon,  Szabolcs Szakacsits, Yura Pakhuchiy, Yuval
87       Fledel, and the author of the groundbreaking FUSE  filesystem  develop‐
88       ment framework, Miklos Szeredi.
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