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-rw-r--r--man/journalctl.xml8
1 files changed, 6 insertions, 2 deletions
diff --git a/man/journalctl.xml b/man/journalctl.xml
index 1ea7b24df1..a3c67f5e82 100644
--- a/man/journalctl.xml
+++ b/man/journalctl.xml
@@ -461,8 +461,8 @@
</varlistentry>
<varlistentry>
- <term><option>-b <optional><replaceable>ID</replaceable></optional><optional><replaceable>±offset</replaceable></optional></option></term>
- <term><option>--boot=<optional><replaceable>ID</replaceable></optional><optional><replaceable>±offset</replaceable></optional></option></term>
+ <term><option>-b <optional><optional><replaceable>ID</replaceable></optional><optional><replaceable>±offset</replaceable></optional>|<constant>all</constant></optional></option></term>
+ <term><option>--boot<optional>=<optional><replaceable>ID</replaceable></optional><optional><replaceable>±offset</replaceable></optional>|<constant>all</constant></optional></option></term>
<listitem><para>Show messages from a specific boot. This will
add a match for <literal>_BOOT_ID=</literal>.</para>
@@ -494,6 +494,10 @@
<replaceable>offset</replaceable> is not specified, a value of
zero is assumed, and the logs for the boot given by
<replaceable>ID</replaceable> are shown.</para>
+
+ <para>The special argument <constant>all</constant> can be
+ used to negate the effect of an earlier use of
+ <option>-b</option>.</para>
</listitem>
</varlistentry>