1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
|
.TH NAMESPACE 6
.SH NAME
namespace \- name space description file
.SH DESCRIPTION
Namespace files describe how to construct a name space from scratch,
or add to an existing name space.
The files are interpreted by
.IR newns (2),
invoked by commands such as
.IR logon (1)
and by other system services.
.PP
The name space description file contains one or more
lines each of which specifies one name space operation.
Empty lines and lines with
.B #
as the first non-space character are ignored.
Environment variables of the form
.BI $ name
are expanded within arguments, where
.I name
is a string terminated by white space, or one of the characters
.LR / ,
.LR . ,
or
.LR $ .
.PP
The known operations and their arguments are:
.TP
.B "bind [-abci] \f2old\fP \f2new\fP"
Use
.I new
as an alias for file or directory
.IR old .
Options
.BR a ,
.BR b
and
.BR c
translate to flag values
.BR Sys\->MAFTER ,
.B Sys\->MBEFORE
and
.B Sys\->MCREATE
of
.IR sys-bind (2).
If neither
.B a
nor
.B b
are given, the default is
.BR Sys\->MREPL .
Option
.B i
means to ignore errors.
.TP
.B cd \f2directory\fP
Change working directory to
.IR directory .
.TP
.B fork
Split the name space before modification.
This is equivalent to passing a value of
.B Sys->FORKNS
to
.IR sys-pctl (2).
.TP
.B "mount [-abc9iA] [-k \f2keyfile\fP] [-C \f2alg\fP] [\f2net\fP!]\f2machine\fP[!\f2svc\fP] \f2dir\fP [\f2spec\fP]"
Mount the file tree of
.I machine
upon directory
.IR dir .
The default service is
.BR styx .
Options
.BR a ,
.BR b ,
.B c
and
. B i
are the same as for
.BR bind,
option
.BR A
is the same for mount.
The tokens
.I dir
and
.I spec
translate to
.I old
and
.I aname
of
.B mount
as described under
.IR sys-bind (2).
The
.BR -k ,
.B -C
and
.B -9
options are the same as those for the
.I mount
command (see
.IR bind (1)).
.TP
.B "import [-abc9i] [\f2net\fP!]\f2machine\fP[!\f2svc\fP] [\f2remotedir\fP] \f2dir\fP"
Import a directory from a remote Plan 9
.I machine
and make it appear on directory
.IR dir .
Options
.BR a ,
.BR b ,
.BR c
and
.B i
are the same as for
.BR mount .
By default,
.I remotedir
is assumed to be the same name as
.IR dir .
The default service is
.BR exportfs .
(Currently this operation works only under native Inferno and Plan 9.)
.TP
.B new
Create a new name space in which the current directory
becomes the root directory;
typically used after
.BR cd .
This is equivalent to passing a value of
.B Sys->NEWNS
to
.IR sys-pctl (2).
.TP
.B nodev
Disallow device attaches.
This is equivalent to passing a value of
.B Sys->NODEVS
to
.IR sys-pctl (2).
.TP
.B unmount [-i] [\f2name\fP] \f2from\fP
If two arguments are given, undo a
.B bind
or
.B mount
with the same arguments.
If only one argument is given, everything bound to or mounted on
.I from
is unmounted.
The
.B -i
option means ignore errors.
.TP
.BI "\&." " path"
Include the name space description file
.IR path .
.SH SEE ALSO
.IR nsbuild (1),
.IR wm (1),
.IR newns (2)
|
