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Fix #374: describe automount of /run, /tmp and tmpfiles.d support

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Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
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Joachim Wiberg
2023-10-22 12:18:42 +02:00
parent 7ff7f93364
commit e2ee372b5d
2 changed files with 25 additions and 9 deletions
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doc/plugins.md
+17 -5
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@@ -28,9 +28,16 @@ For your convenience a set of *optional* plugins are available:
system and runs at `HOOK_BASEFS_UP`. The `/var`, `/run`, and `/dev`
file systems must be writable for this plugin to work.
Note: On an embedded system both `/var` and `/run` can be `tmpfs` RAM
disks and `/dev` is usually a `devtmpfs`. This must be defined in the
`/etc/fstab` file and in the Linux kernel config.
This plugin is a wrapper for the [tmpfiles.d(5)][] implementation that
Finit has. Capable but limited: no aging, attributes, or subvolumes.
By default, `/lib/finit/tmpfiles.d` carries all the default .conf
files distributed with Finit. It is read first but can be overridden
by any of the standard tmpfiles.d directories, e.g. `/etc/tmpfiles.d`.
> **Note:** On an embedded system both `/var` and `/run` can be `tmpfs`
> RAM disks and `/dev` is usually a `devtmpfs`. This must be defined
> in the `/etc/fstab` file and in the Linux kernel config.
* *dbus.so*: Setup and start system message bus, D-Bus, at boot.
_Optional plugin._
@@ -50,8 +57,11 @@ For your convenience a set of *optional* plugins are available:
customized at build-time using the `--with-hook-scripts-path=PATH`
argument to `configure`.
* *hotplug.so*: Setup and start either udev or mdev hotplug daemon, if
available. Enabled by default.
* *hotplug.so*: Replaced with `/lib/finit/system/10-hotplug.conf`, which
checks for `udevd` and `mdev` at boot. This file can be overridden by a
file in `/etc/finit.d/10-hotplug.conf`.
Enabled by default.
> See the [Services](config.md#services) section in the configuration
> guide for an example how to run `mdevd`, alternative to plain mdev.
@@ -217,3 +227,5 @@ Plugins like `tty.so` extend finit by acting on events, they are called
I/O plugins and are called from the finit main loop when `poll()`
detects an event. See the source code for `plugins/*.c` for more help
and ideas.
[tmpfiles.d(5)]: https://www.freedesktop.org/software/systemd/man/tmpfiles.d.html