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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | COLOPHON |
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SYSTEMD...SERVICE(8) systemd-volatile-root.service SYSTEMD...SERVICE(8)
systemd-volatile-root.service, systemd-volatile-root - Make the
root file system volatile
systemd-volatile-root.service
/usr/lib/systemd/systemd-volatile-root
systemd-volatile-root.service is a service that replaces the root
directory with a volatile memory file system ("tmpfs"), mounting
the original (non-volatile) /usr/ inside it read-only. This way,
vendor data from /usr/ is available as usual, but all
configuration data in /etc/, all state data in /var/ and all
other resources stored directly under the root directory are
reset on boot and lost at shutdown, enabling fully stateless
systems.
This service is only enabled if full volatile mode is selected,
for example by specifying "systemd.volatile=yes" on the kernel
command line. This service runs only in the initrd, before the
system transitions to the host's root directory. Note that this
service is not used if "systemd.volatile=state" is used, as in
that mode the root directory is non-volatile.
systemd(1), systemd-fstab-generator(8), kernel-command-line(7)
This page is part of the systemd (systemd system and service
manager) project. Information about the project can be found at
⟨http://www.freedesktop.org/wiki/Software/systemd⟩. If you have
a bug report for this manual page, see
⟨http://www.freedesktop.org/wiki/Software/systemd/#bugreports⟩.
This page was obtained from the project's upstream Git repository
⟨https://github.com/systemd/systemd.git⟩ on 2024-06-14. (At that
time, the date of the most recent commit that was found in the
repository was 2024-06-13.) If you discover any rendering
problems in this HTML version of the page, or you believe there
is a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
[email protected]
systemd 257~devel SYSTEMD...SERVICE(8)
Pages that refer to this page: kernel-command-line(7), systemd.directives(7), systemd.index(7), systemd-fstab-generator(8)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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