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SYSTEMD-VOLATILE-ROOT.SERsystemd-volatile-rootSYSTEMD-VOLATILE-ROOT.SERVICE(8)

NAME
       systemd-volatile-root.service, systemd-volatile-root - Make the root
       file system volatile

SYNOPSIS
       systemd-volatile-root.service

       /lib/systemd/systemd-volatile-root

DESCRIPTION
       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 initial RAM disk ("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.

SEE ALSO
       systemd(1), systemd-fstab-generator(8), kernel-command-line(7)

systemd 245                                   SYSTEMD-VOLATILE-ROOT.SERVICE(8)
NAME | SYNOPSIS | DESCRIPTION | SEE ALSO