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/systemd-251/docs/
DCONTAINER_INTERFACE.md26 read-only (the latter via e.g. a read-only bind mount on itself) in order
32 been modified to behave accordingly when these file systems are read-only.
33 (It's OK to mount `/sys/` as `tmpfs` btw, and only mount a subset of its
35 so on. If you do that, make sure to mark `/sys/` read-only, as that
42 ttys, to avoid being killed by SAK. It only opens ttys for the time it
57 will check for `/sys/` being read-only, as an indication whether device
58 management can work. Therefore make sure to mount `/sys/` read-only in the
60 read-only state of `/sys/`, including PID 1 itself and `systemd-networkd`.
72 "upper" parts read-only of the hierarchies, and only allow write-access to
74 all controller hierarchies with exception of `name=systemd` fully read-only
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DUSER_GROUP_API.md28 This simple API only exposes only three method calls, and requires only a small
40 service for D-Bus generally runs as regular system daemon and is hence only
77 This simple scheme only works safely as long as every service providing
112 Note that these services currently implement a subset of Varlink only. For
140 provided. When using the Varlink API, lookups into databases provided only via
204 for. Typically, only one of the two parameters are set, depending whether a
206 parameters, in which case a record matching both will be returned, and if only
222 user record lookup should only pass the `privileged` section of user records to
269 Note that only the `GetMemberships` call is authoritative about memberships of
272 acquire the full list of memberships. The full list can only be determined by
DROOT_STORAGE_DAEMONS.md33 them up in the first place. This is not only cleaner, but also allows for the
53 only after we returned control back to the initrd and by the initrd. As such,
58 already gone. These daemons can only be updated by updating the initrd and
69 resources) and tries to unmount/read-only mount/detach/kill them. It continues
76 The same killing spree logic (but not the unmount/detach/read-only logic) is
83 normal operation and are only killed after control is passed back to the
99 And that's already it. Note that this functionality is only to be used by
139 Note that your code should only modify `argv[0][0]` and leave the comm name
149 This all applies to storage technology only, not to daemons with any other
DENVIRONMENT.md18 the various tools. Note that this list only covers environment variables not
55 useful for debugging. Currently only supported by
59 `/etc/integritytab`. Only useful for debugging. Currently only supported by
63 `/etc/veritytab`. Only useful for debugging. Currently only supported by
79 testing initrd-only programs in the main system.
91 this only controls use of Unicode emoji glyphs, and has no effect on other
101 Takes a prefix such as `$6$` or `$y$`. (Note that this is only honoured on
128 and friends writable in the container. If set to "network", leave only
185 fashion. Note that by default only boot loader entries which follow the
251 `--path=` switch only very superficial validation of the specified path is
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DBOOT_LOADER_INTERFACE.md11 other information, and pass control information. This is only supported on EFI
40 boot loader, to ensure it only takes effect a single time. This value is
59 by the boot loader, to ensure it only takes effect a single time. This value
93 (i.e. in physical NVRAM) of the ESP file system storage, and only the latter
96 generally only written once, by the OS installer, and is usually not touched
101 systemd will mount the ESP that was used for the boot to `/boot`, but only if
102 that directory is empty, and only if no other file systems are mounted
DJOURNAL_EXPORT_FORMATS.md12 _Note that this document describes the binary serialization format of journals only, as used for tr…
21 * Journal fields consisting only of valid non-control UTF-8 codepoints are serialized as they are (…
23 …ONIC_TIMESTAMP=` are introduced this way. Note that these meta-fields are only generated when actu…
29 Here's an example for two serialized entries which consist only of text data:
125 _Note that this section describes the JSON serialization format of the journal only, as used for in…
135 …not allowed in JSON. The serializer will hence create a single JSON field only for these cases, an…
DUSERDB_AND_DESKTOPS.md50 only revert back to the session after re-authentication via this system lock
55 and only switches back to the shell's UI after the user re-authenticated there.
98 only btrfs has online file system shrinking support, ext4 only offline file
104 Note that only `systemd-homed` provides an API for modifying/creating/deleting
106 `systemd-homed`, for example LDAP or Windows) exclusively provides a read-only
126 "side-car" metadata for *any* type of user account, while `systemd-homed` only
145 solution only.
DUSER_RECORD.md94 specification only with JSON implementations that provide this number range.
117 only, e.g. limiting a user's memory use to 1G only makes sense on a specific
132 part of the user record only in the local context, and is generally not
144 section is augmented during runtime only, and never persisted to disk. The
152 reduced version of the user record. This is used to ensure that only user
158 covered by the signature. This section is optional, and is only used when
164 records are inquired by a client, privileged or not. This data should only
184 manage only a subset of these sections and never include the others in
187 bother with the `signature` section. A service that only defines records in a
193 the fields included therein are only useful when executing authentication
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DCODING_STYLE.md126 i.e. `systemd/sd-*.h`) should only use ISO C89 however (with a very limited
144 TLS to do per-thread caching (which only works for small, fixed-size cache
151 variables only on success. The rule is: never clobber return parameters on
157 indicate they are input-only and not changed by the function. Return
160 output-only with "ret_", in particular not mutable parameters that are both
256 - Use `goto` for cleaning up, and only use it for that. I.e. you may only jump
289 the call away for fixed strings). The only exception is when declaring an
293 - Please use C's downgrade-to-bool feature only for expressions that are
295 numeric. Specifically, if you have an `int b` and it's only used in a boolean
362 - Do not log errors from "library" code, only do so from "main program"
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DUSER_NAMES.md36 `^[a-z][-a-z0-9]*$`, i.e. only lower case ASCII letters, digits and
37 hyphens. As first character only lowercase ASCII letters are allowed. This
61 focus on Linux systems only however, hence those are out of scope. That said,
85 In strict mode, only uppercase and lowercase characters are allowed, as well as
127 to embed these strings in JSON, with permits only valid UTF-8 in its strings;
146 consisting of white-space only either (rationale: this typically indicates
DTEMPORARY_DIRECTORIES.md16 1. `/tmp/` should be used for smaller, size-bounded files only; `/var/tmp/`
40 drop-ins. However this is not recommended, as it is fully safe only if these
99 operate on open, and only access the files through them. This way it doesn't
131 that `systemd-tmpfiles` only checks for BSD file locks on directories, locks
145 honoured for regular files only however, and has no effect on directories as
158 program dies unexpectedly. Note: this strategy is only really suitable for
166 (which includes drop-ins in the runtime-only directory
174 �� The semantics of options 2 (in case you only deal with temporary files, not
DBUILDING_IMAGES.md79 Thus, for images that shall acquire their identity on first boot only, it is
98 it's relatively easy to build images that only ship a `/usr/` tree, and
151 unpopulated images (`/usr/` being the only required directory to be populated)
158 i.e. only consist of necessary vendor data, and lack "payload" data, that shall
173 3. Partitions covering only a part of the disk should be grown to the full
179 5. File systems covering only a part of a partition should be grown to the full
231 settings may be used to conditionalize units to only run on first boot. See
/systemd-251/src/shared/
Dsocket-label.c26 SocketAddressBindIPv6Only only, in socket_address_listen() argument
62 if (socket_address_family(a) == AF_INET6 && only != SOCKET_ADDRESS_DEFAULT) { in socket_address_listen()
63 r = setsockopt_int(fd, IPPROTO_IPV6, IPV6_V6ONLY, only == SOCKET_ADDRESS_IPV6_ONLY); in socket_address_listen()
Duserdb.c406 _cleanup_(strv_freep) char **except = NULL, **only = NULL; in userdb_start_query()
431 only = strv_split(e, ":"); in userdb_start_query()
432 if (!only) in userdb_start_query()
439 (!only || strv_contains(only, "io.systemd.Multiplexer"))) { in userdb_start_query()
490 if (only && !strv_contains(only, de->d_name)) in userdb_start_query()
/systemd-251/shell-completion/zsh/
D_journalctl107 …{-b+,--boot=}'[Show data only from the specified boot or offset]::boot id or offset:_journalctl_bo…
109 {-k,--dmesg}'[Show only kernel messages from the current boot]' \
110 …{-u+,--unit=}'[Show data only from the specified unit]:units:_journalctl_field_values _SYSTEMD_UNI…
111 …'--user-unit=[Show data only from the specified user session unit]:units:_journalctl_field_values …
112 …{-p+,--priority=}'[Show only messages within the specified priority range]:priority:_journalctl_fi…
139 '--vacuum-files=[Leave only the specified number of journal files]:integer' \
D_machinectl47 "read-only:Mark or unmark image read-only"
100 '--read-only[Create read-only bind mount.]' \
D_systemd-analyze105 '--order[When generating graph for dot, show only order]' \
106 '--require[When generating graph for dot, show only requirement]' \
108 '--from-pattern=[When generating a dependency graph, filter only origins]:GLOB' \
109 '--to-pattern=[When generating a dependency graph, filter only destinations]:GLOB' \
D_udevadm17 '--value[When showing properties, print only their values.]' \
18 '--property=[Show only properties by this name.]'
47 '--seq-start=[Wait only for events after the given sequence number.]' \
48 '--seq-end=[Wait only for events before the given sequence number.]' \
D_systemd-nspawn41 '--read-only[Mount the root file system read only for the container.]' \
43 …'--bind-ro=[Bind mount a file or directory from the host into the container (read-only).]: : _file…
D_bootctl48 "set-oneshot:Set the default boot loader entry only for the next boot"
50 "set-timeout-oneshot:Set the menu timeout for the next boot only"
/systemd-251/
Dmkosi.build79 meson install -C "$BUILDDIR" --quiet --no-rebuild --only-changed
81 meson install -C "$BUILDDIR" --no-rebuild --only-changed
D.packit.yml24 # Drop backported patches from the specfile, but keep the downstream-only ones
26 # - Patch0500-9999: downstream-only patches
DTODO3 * Many manager configuration settings that are only applicable to user
150 only via explicit choice in boot menu: i.e. add explicit boot menu item for
154 TPM2. Ensure that boot menu item is only way to enter developer mode, by
159 set up the directory so that it can only be accessed if host and app are in
165 generation counter into account that can only monotonically increase and can
168 with a key that can only be unlocked via a pristine pre-built Fedora
187 is only supported for such old kernels
264 pass seed to kernel, but credit only if secure boot is used
289 that apparently new features in this area are only going to be added to the
362 ids), so this knob would only be useful in combination with other lockdown
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/systemd-251/test/fuzz/fuzz-udev-rules/
D78-sound-card.rules14 # however only maintains the order between father and child, but not between
26 # only be relayed after all child devices have finished processing properly.
28 # for 'change' events only, and ignore the actual 'add' events.
/systemd-251/rules.d/
D78-sound-card.rules14 # however only maintains the order between father and child, but not between
26 # only be relayed after all child devices have finished processing properly.
28 # for 'change' events only, and ignore the actual 'add' events.

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