1SYSTEMD-VOLATILE-ROOT.SERVsIyCsEt(e8m)d-volatile-root.SsYeSrTvEiMcDe-VOLATILE-ROOT.SERVICE(8)
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NAME

6       systemd-volatile-root.service, systemd-volatile-root - Make the root
7       file system volatile
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SYNOPSIS

10       systemd-volatile-root.service
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12       /usr/lib/systemd/systemd-volatile-root
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DESCRIPTION

15       systemd-volatile-root.service is a service that replaces the root
16       directory with a volatile memory file system ("tmpfs"), mounting the
17       original (non-volatile) /usr/ inside it read-only. This way, vendor
18       data from /usr/ is available as usual, but all configuration data in
19       /etc/, all state data in /var/ and all other resources stored directly
20       under the root directory are reset on boot and lost at shutdown,
21       enabling fully stateless systems.
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23       This service is only enabled if full volatile mode is selected, for
24       example by specifying "systemd.volatile=yes" on the kernel command
25       line. This service runs only in the initrd, before the system
26       transitions to the host's root directory. Note that this service is not
27       used if "systemd.volatile=state" is used, as in that mode the root
28       directory is non-volatile.
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SEE ALSO

31       systemd(1), systemd-fstab-generator(8), kernel-command-line(7)
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35systemd 253                                   SYSTEMD-VOLATILE-ROOT.SERVICE(8)
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