reboot.2: Note user namespace requirements around CAP_SYS_BOOT

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

diff --git a/man2/reboot.2 b/man2/reboot.2
index 1096b4f68df571b37f34761f98f697ed34447864..dae0e697759f3373012645f08c417b180a2c1c45 100644 (file)
--- a/man2/reboot.2
+++ b/man2/reboot.2
@@ -210,9 +210,9 @@ Bad magic numbers or \fIcmd\fP.
 .B EPERM
 The calling process has insufficient privilege to call
 .BR reboot ();
-the
+the caller must have the
 .B CAP_SYS_BOOT
-capability is required.
+inside its user namespace.
 .SH CONFORMING TO
 .BR reboot ()
 is Linux-specific,