1FLATPAK OVERRIDE(1) flatpak override FLATPAK OVERRIDE(1)
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6 flatpak-override - Override application requirements
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9 flatpak override [OPTION...] [APP]
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12 Overrides the application specified runtime requirements. This can be
13 used to grant a sandboxed application more or less resources than it
14 requested.
15 By default the application gets access to the resources it requested
17 when it is started. But the user can override it on a particular
18 instance by specifying extra arguments to flatpak run, or every time by
19 using flatpak override.
20 If the application id is not specified then the overrides affect all
22 applications, but the per-application overrides can override the global
23 overrides.
24 Unless overridden with the --user or --installation options, this
26 command changes the default system-wide installation.
27
29 The following options are understood:
30 -h, --help
32 Show help options and exit.
33 --user
35 Update a per-user installation.
36 --system
38 Update the default system-wide installation.
39 --installation=NAME
41 Updates a system-wide installation specified by NAME among those
42 defined in /etc/flatpak/installations.d/. Using
43 --installation=default is equivalent to using --system.
44 --share=SUBSYSTEM
46 Share a subsystem with the host session. This overrides the Context
47 section from the application metadata. SUBSYSTEM must be one of:
48 network, ipc. This option can be used multiple times.
49 --unshare=SUBSYSTEM
51 Don't share a subsystem with the host session. This overrides the
52 Context section from the application metadata. SUBSYSTEM must be
53 one of: network, ipc. This option can be used multiple times.
54 --socket=SOCKET
56 Expose a well-known socket to the application. This overrides to
57 the Context section from the application metadata. SOCKET must be
58 one of: x11, wayland, fallback-x11, pulseaudio, system-bus,
59 session-bus, ssh-auth, pcsc. This option can be used multiple
60 times.
61 --nosocket=SOCKET
63 Don't expose a well-known socket to the application. This overrides
64 to the Context section from the application metadata. SOCKET must
65 be one of: x11, wayland, fallback-x11, pulseaudio, system-bus,
66 session-bus, ssh-auth, pcsc. This option can be used multiple
67 times.
68 --device=DEVICE
70 Expose a device to the application. This overrides to the Context
71 section from the application metadata. DEVICE must be one of: dri,
72 kvm, all. This option can be used multiple times.
73 --nodevice=DEVICE
75 Don't expose a device to the application. This overrides to the
76 Context section from the application metadata. DEVICE must be one
77 of: dri, kvm, all. This option can be used multiple times.
78 --allow=FEATURE
80 Allow access to a specific feature. This updates the [Context]
81 group in the metadata. FEATURE must be one of: devel, multiarch,
82 bluetooth, canbus. This option can be used multiple times.
83 See flatpak-build-finish(1) for the meaning of the various
85 features.
86 --disallow=FEATURE
88 Disallow access to a specific feature. This updates the [Context]
89 group in the metadata. FEATURE must be one of: devel, multiarch,
90 bluetooth, canbus. This option can be used multiple times.
91 --filesystem=FILESYSTEM
93 Allow the application access to a subset of the filesystem. This
94 overrides to the Context section from the application metadata.
95 FILESYSTEM can be one of: home, host, xdg-desktop, xdg-documents,
96 xdg-download, xdg-music, xdg-pictures, xdg-public-share,
97 xdg-templates, xdg-videos, xdg-run, xdg-config, xdg-cache,
98 xdg-data, an absolute path, or a homedir-relative path like ~/dir
99 or paths relative to the xdg dirs, like xdg-download/subdir. The
100 optional :ro suffix indicates that the location will be read-only.
101 The optional :create suffix indicates that the location will be
102 read-write and created if it doesn't exist. This option can be used
103 multiple times.
104 --nofilesystem=FILESYSTEM
106 Remove access to the specified subset of the filesystem from the
107 application. This overrides to the Context section from the
108 application metadata. FILESYSTEM can be one of: home, host,
109 xdg-desktop, xdg-documents, xdg-download, xdg-music, xdg-pictures,
110 xdg-public-share, xdg-templates, xdg-videos, an absolute path, or a
111 homedir-relative path like ~/dir. This option can be used multiple
112 times.
113 --add-policy=SUBSYSTEM.KEY=VALUE
115 Add generic policy option. For example,
116 "--add-policy=subsystem.key=v1 --add-policy=subsystem.key=v2" would
117 map to this metadata:
118 [Policy subsystem]
120 key=v1;v2;
121 This option can be used multiple times.
124 --remove-policy=SUBSYSTEM.KEY=VALUE
126 Remove generic policy option. This option can be used multiple
127 times.
128 --env=VAR=VALUE
130 Set an environment variable in the application. This overrides to
131 the Context section from the application metadata. This option can
132 be used multiple times.
133 --own-name=NAME
135 Allow the application to own the well-known name NAME on the
136 session bus. This overrides to the Context section from the
137 application metadata. This option can be used multiple times.
138 --talk-name=NAME
140 Allow the application to talk to the well-known name NAME on the
141 session bus. This overrides to the Context section from the
142 application metadata. This option can be used multiple times.
143 --no-talk-name=NAME
145 Don't allow the application to talk to the well-known name NAME on
146 the session bus. This overrides to the Context section from the
147 application metadata. This option can be used multiple times.
148 --system-own-name=NAME
150 Allow the application to own the well known name NAME on the system
151 bus. If NAME ends with .*, it allows the application to own all
152 matching names. This overrides to the Context section from the
153 application metadata. This option can be used multiple times.
154 --system-talk-name=NAME
156 Allow the application to talk to the well known name NAME on the
157 system bus. If NAME ends with .*, it allows the application to talk
158 to all matching names. This overrides to the Context section from
159 the application metadata. This option can be used multiple times.
160 --system-no-talk-name=NAME
162 Don't allow the application to talk to the well known name NAME on
163 the system bus. If NAME ends with .*, it allows the application to
164 talk to all matching names. This overrides to the Context section
165 from the application metadata. This option can be used multiple
166 times.
167 --persist=FILENAME
169 If the application doesn't have access to the real homedir, make
170 the (homedir-relative) path FILENAME a bind mount to the
171 corresponding path in the per-application directory, allowing that
172 location to be used for persistent data. This overrides to the
173 Context section from the application metadata. This option can be
174 used multiple times.
175 --reset
177 Remove overrides. If an APP is given, remove the overrides for that
178 application, otherwise remove the global overrides.
179 --show
181 Shows overrides. If an APP is given, shows the overrides for that
182 application, otherwise shows the global overrides.
183 -v, --verbose
185 Print debug information during command processing.
186 --ostree-verbose
188 Print OSTree debug information during command processing.
189
191 $ flatpak override --nosocket=wayland org.gnome.gedit
192 $ flatpak override --filesystem=home org.mozilla.Firefox
194
196 flatpak(1), flatpak-run(1)
197flatpak FLATPAK OVERRIDE(1)