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man: mention the meaning of may-fail in the nm-online man page

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Commit b2a0738765 ('man: improve manual page for nm-online') removed
the explanation of how may-fail can be used to wait for a specific
address family during boot. I found that part useful. Add it again,
adapting it to the new behavior introduced by 1e5206414a ('device:
don't delay startup complete for pending-actions "autoconf", "dhcp4"
and "dhcp6"').

https://bugzilla.redhat.com/show_bug.cgi?id=1825666
(cherry picked from commit 25583de20b)
This commit is contained in:
Beniamino Galvani 2020-04-23 17:24:22 +02:00
parent fae37528d9
commit 02a31e71af
1 changed files with 8 additions and 0 deletions
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8
man/nm-online.xml
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@ -68,6 +68,14 @@
and don't order them with respect to <literal>network-online.target</literal>
at all.
</para>
<para>By default, connections have the <literal>ipv4.may-fail</literal> and
<literal>ipv6.may-fail</literal> properties set to <literal>yes</literal>;
this means that NetworkManager waits for one of the two address families to
complete configuration before considering the connection activated. If you
need a specific address family configured before
<literal>network-online.target</literal> is reached, set the corresponding
<literal>may-fail</literal> property to <literal>no</literal>.</para>
</refsect1>
<refsect1 id='options'><title>Options</title>