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 initial RAM disk ("initrd"), before
26       the system transitions to the host's root directory. Note that this
27       service is not used if "systemd.volatile=state" is used, as in that
28       mode the root 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 249                                   SYSTEMD-VOLATILE-ROOT.SERVICE(8)
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