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.TH "SYSTEMD\-VOLATILE\-ROOT\&.SERVICE" "8" "" "systemd 247" "systemd-volatile-root.service"
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.SH "NAME"
systemd-volatile-root.service, systemd-volatile-root \- Make the root file system volatile
.SH "SYNOPSIS"
.PP
systemd\-volatile\-root\&.service
.PP
/lib/systemd/systemd\-volatile\-root
.SH "DESCRIPTION"
.PP
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\&.
.PP
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\*(Aqs 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\&.
.SH "SEE ALSO"
.PP
\fBsystemd\fR(1),
\fBsystemd-fstab-generator\fR(8),
\fBkernel-command-line\fR(7)