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, cups. 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, cups. 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, shm, 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, shm, 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, host-os, host-etc,
96 xdg-desktop, xdg-documents, xdg-download, xdg-music, xdg-pictures,
97 xdg-public-share, xdg-templates, xdg-videos, xdg-run, xdg-config,
98 xdg-cache, xdg-data, an absolute path, or a homedir-relative path
99 like ~/dir or paths relative to the xdg dirs, like
100 xdg-download/subdir. The optional :ro suffix indicates that the
101 location will be read-only. The optional :create suffix indicates
102 that the location will be read-write and created if it doesn't
103 exist. This option can be used multiple times. See the "[Context]
104 filesystems" list in flatpak-metadata(5) for details of the
105 meanings of these filesystems.
106 --nofilesystem=FILESYSTEM
108 Remove access to the specified subset of the filesystem from the
109 application. This overrides to the Context section from the
110 application metadata. FILESYSTEM can be one of: home, host,
111 host-os, host-etc, xdg-desktop, xdg-documents, xdg-download,
112 xdg-music, xdg-pictures, xdg-public-share, xdg-templates,
113 xdg-videos, an absolute path, or a homedir-relative path like
114 ~/dir. This option can be used multiple times.
115 --add-policy=SUBSYSTEM.KEY=VALUE
117 Add generic policy option. For example,
118 "--add-policy=subsystem.key=v1 --add-policy=subsystem.key=v2" would
119 map to this metadata:
120 [Policy subsystem]
122 key=v1;v2;
123 This option can be used multiple times.
126 --remove-policy=SUBSYSTEM.KEY=VALUE
128 Remove generic policy option. This option can be used multiple
129 times.
130 --env=VAR=VALUE
132 Set an environment variable in the application. This overrides to
133 the Context section from the application metadata. This option can
134 be used multiple times.
135 --unset-env=VAR
137 Unset an environment variable in the application. This overrides
138 the unset-environment entry in the [Context] group of the metadata,
139 and the [Environment] group. This option can be used multiple
140 times.
141 --env-fd=FD
143 Read environment variables from the file descriptor FD, and set
144 them as if via --env. This can be used to avoid environment
145 variables and their values becoming visible to other users.
146 Each environment variable is in the form VAR=VALUE followed by a
148 zero byte. This is the same format used by env -0 and
149 /proc/*/environ.
150 --own-name=NAME
152 Allow the application to own the well-known name NAME on the
153 session bus. This overrides to the Context section from the
154 application metadata. This option can be used multiple times.
155 --talk-name=NAME
157 Allow the application to talk to the well-known name NAME on the
158 session bus. This overrides to the Context section from the
159 application metadata. This option can be used multiple times.
160 --no-talk-name=NAME
162 Don't allow the application to talk to the well-known name NAME on
163 the session bus. This overrides to the Context section from the
164 application metadata. This option can be used multiple times.
165 --system-own-name=NAME
167 Allow the application to own the well known name NAME on the system
168 bus. If NAME ends with .*, it allows the application to own all
169 matching names. This overrides to the Context section from the
170 application metadata. This option can be used multiple times.
171 --system-talk-name=NAME
173 Allow the application to talk to the well known name NAME on the
174 system bus. If NAME ends with .*, it allows the application to talk
175 to all matching names. This overrides to the Context section from
176 the application metadata. This option can be used multiple times.
177 --system-no-talk-name=NAME
179 Don't allow the application to talk to the well known name NAME on
180 the system bus. If NAME ends with .*, it allows the application to
181 talk to all matching names. This overrides to the Context section
182 from the application metadata. This option can be used multiple
183 times.
184 --persist=FILENAME
186 If the application doesn't have access to the real homedir, make
187 the (homedir-relative) path FILENAME a bind mount to the
188 corresponding path in the per-application directory, allowing that
189 location to be used for persistent data. This overrides to the
190 Context section from the application metadata. This option can be
191 used multiple times.
192 --reset
194 Remove overrides. If an APP is given, remove the overrides for that
195 application, otherwise remove the global overrides.
196 --show
198 Shows overrides. If an APP is given, shows the overrides for that
199 application, otherwise shows the global overrides.
200 -v, --verbose
202 Print debug information during command processing.
203 --ostree-verbose
205 Print OSTree debug information during command processing.
206
208 $ flatpak override --nosocket=wayland org.gnome.gedit
209 $ flatpak override --filesystem=home org.mozilla.Firefox
211
213 flatpak(1), flatpak-run(1)
214flatpak FLATPAK OVERRIDE(1)