Document the fixup mechanism. Signed-off-by: Marco Felsch <m.felsch@xxxxxxxxxxxxxx> --- Documentation/user/booting-linux.rst | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/Documentation/user/booting-linux.rst b/Documentation/user/booting-linux.rst index 60babb513c..fd7575bbe9 100644 --- a/Documentation/user/booting-linux.rst +++ b/Documentation/user/booting-linux.rst @@ -232,6 +232,28 @@ device where the entry is found on. This makes it possible to use the same rootf image on different devices without having to specify a different root= option each time. +The following environment variables can be used to update the bootloader spec entry +values on the fly. + +.. warning:: + + In most use cases this is not necessary. Modifying the bootloader spec values on + the fly can trigger unwanted boot behaviours. + ++-----------------------------------------+ +| name | ++=========================================+ +| global.blspec.fixup.devicetree | ++-----------------------------------------+ +| global.blspec.fixup.initrd | ++-----------------------------------------+ +| global.blspec.fixup.options | ++-----------------------------------------+ +| global.blspec.fixup.linux | ++-----------------------------------------+ +| global.blspec.fixup.devicetree-overlay | ++-----------------------------------------+ + Network boot ------------ -- 2.20.1 _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
