wic: bootimg-efi: Make kernel image installation configurable

The issue with installing the kernel image to both rootfs
and boot partition is that some systems rely on the kernel image in
rootfs and not in the boot partition.
This leads to duplication of the kernel image, which can cause
unnecessary storage usage.
This patch provides a solution to the problem by adding a new
parameter "install-kernel-into-boot-dir" to the wic kickstart file.
If this parameter is set to 'true', the plugin will install the
kernel image to the boot partition. If the parameter is set to
'false', the plugin will skip installing the kernel image, avoiding
duplication.

Signed-off-by: Kareem Zarka <kareem.zarka@huawei.com>
Signed-off-by: Christian Taedcke <christian.taedcke@weidmueller.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/scripts/lib/wic/plugins/source/bootimg-efi.py b/scripts/lib/wic/plugins/source/bootimg-efi.py
index 4f30926f1ad7828a8e8c37c8086ec93c488cf32f..13a9cddf4e147a296ddf3e986a5f4b9c181d861b 100644 (file)
--- a/scripts/lib/wic/plugins/source/bootimg-efi.py
+++ b/scripts/lib/wic/plugins/source/bootimg-efi.py
@@ -400,9 +400,10 @@ class BootimgEFIPlugin(SourcePlugin):
 
                 exec_native_cmd(objcopy_cmd, native_sysroot)
         else:
-            install_cmd = "install -m 0644 %s/%s %s/%s" % \
-                (staging_kernel_dir, kernel, hdddir, kernel)
-            exec_cmd(install_cmd)
+            if source_params.get('install-kernel-into-boot-dir') != 'false':
+                install_cmd = "install -m 0644 %s/%s %s/%s" % \
+                    (staging_kernel_dir, kernel, hdddir, kernel)
+                exec_cmd(install_cmd)
 
         if get_bitbake_var("IMAGE_EFI_BOOT_FILES"):
             for src_path, dst_path in cls.install_task: