summaryrefslogtreecommitdiffstats
path: root/Documentation/user/booting-linux.rst
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/user/booting-linux.rst')
-rw-r--r--Documentation/user/booting-linux.rst6
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/user/booting-linux.rst b/Documentation/user/booting-linux.rst
index b5e4320ef6..408f87d8e8 100644
--- a/Documentation/user/booting-linux.rst
+++ b/Documentation/user/booting-linux.rst
@@ -212,6 +212,12 @@ The entry can be listed with the -l option:
When on barebox the SD card shows up as ``mmc1`` then this entry can be booted with
``boot mmc1`` or with setting ``global.boot.default`` to ``mmc1``.
+``machine-id`` is an optional key. If ``global.boot.machine_id`` variable is set to
+non-empty value, then barebox accepts only Bootloader Spec entries with ``machine-id``
+key. In case if value of global variable and Bootloader Spec key match each other,
+barebox will choose the boot entry for booting. All other Bootloader Spec entries will
+be ignored.
+
A bootloader spec entry can also reside on an NFS server in which case a RFC2224
compatible NFS URI string must be passed to the boot command: