sync with archisov51

Imported changes:
f0ef2f3 (HEAD -> master, tag: v51, origin/master, origin/HEAD) Add changelog file
b588c52 build-host.sh: Style and syntax fixes
428bf47 Add build stage for continuous integration
2a24429 Add continuous integration scripts to linting
0723949 Add scripts for continuous integration
f9a7b20 configs/releng: move locale-gen from customize_airootfs.sh to a pacman hook
a46c740 config/releng: remove pacman hooks specific to ISO build process from airootfs after they run
767c095 Update my email in AUTHORS
dd51457 rm un-used set_image() dupe of check_image() in run_archiso.sh
23c5d52 add vorburger to AUTHORS.rst
0f20a11 Support setting more variables in profiledef.sh and rework the way overrides are applied
e7306a3 add cloud-init to baseline
744b8f1 make baseline have working ethernet networking, like releng
94dd194 add SSH server to baseline
221a921 use same airootfs_image_tool_options in baseline as in releng
4f4047a configs/releng: move the mirror uncommenting sed command from customize_airootfs.sh to a pacman hook
a2c8dd3 archiso_pxe_common: remove resolv.conf before copy
b30d1ca mkarchiso: add version information

Signed-off-by: David P <megver83@parabola.nu>

1 files changed, 13 insertions, 0 deletions

diff --git a/README.rst b/README.rst
index 30f73ef..8380fa3 100644
--- a/README.rst
+++ b/README.rst
@@ -119,6 +119,19 @@ Optionally install parabolaiso's mkinitcpio hooks:
 
     make install-initcpio
 
+Optional Features
+=================
+
+The iso image contains a grub environment block holding the iso version. This allows to boot the iso image from grub
+with a version specific cow directory to mitigate overlay clashes.
+
+  .. code:: grub
+      loopback loop parabola.iso
+      load_env -f (loop)/parabola/grubenv
+      linux (loop)/parabola/boot/x86_64/vmlinuz-linux-libre ... \
+          cow_directory=parabola/${VERSION} ...
+      initrd (loop)/parabola/boot/x86_64/initramfs-linux-libre-lts.img
+
 Contribute
 ==========