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authorZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>2019-08-01 17:16:39 +0200
committerZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>2019-09-16 18:08:54 +0200
commit28f0aef4c7e85f15346d68dcd6a08592af7c1662 (patch)
tree1f26052223ac0cadb9716cf2485cd969e2c86f4e /man/kernel-command-line.xml
parent53aa0d02add93d8c0afa2772609372a2040c162a (diff)
downloadsystemd-28f0aef4c7e85f15346d68dcd6a08592af7c1662.tar.gz
man: document SystemdOptions variable
Diffstat (limited to 'man/kernel-command-line.xml')
-rw-r--r--man/kernel-command-line.xml9
1 files changed, 6 insertions, 3 deletions
diff --git a/man/kernel-command-line.xml b/man/kernel-command-line.xml
index f9408a028d..a79be5997d 100644
--- a/man/kernel-command-line.xml
+++ b/man/kernel-command-line.xml
@@ -27,9 +27,12 @@
<refsect1>
<title>Description</title>
- <para>The kernel, the initial RAM disk (initrd) and
- basic userspace functionality may be configured at boot via
- kernel command line arguments.</para>
+ <para>The kernel, the initial RAM disk (initrd) and basic userspace functionality may be configured at
+ boot via kernel command line arguments. In addition, various systemd tools look at the EFI variable
+ <literal>SystemdOptions</literal> (if available). Both sources are combined, but the kernel command line
+ has higher priority. Please note that <emphasis>the EFI variable is only used by systemd tools, and is
+ ignored by the kernel and other user space tools</emphasis>, so it is not a replacement for the kernel
+ command line.</para>
<para>For command line parameters understood by the kernel, please
see