[OE-core] [PATCH 2/2] isoimage-isohybrid.py: change cpio generated uid&gid to root

[Ioan-Adrian Ratiu]

By default cpio preserves the uid&guid's of the original user which
leads to host contamination and boot failures because commands like
mount from initramfs expect to be run by root and the original host
user might not even exist on the target.

Signed-off-by: Ioan-Adrian Ratiu <adrian.ratiu at ni.com>
---
 scripts/lib/wic/plugins/source/isoimage-isohybrid.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts/lib/wic/plugins/source/isoimage-isohybrid.py b/scripts/lib/wic/plugins/source/isoimage-isohybrid.py
index de99ad8..bc99283 100644
--- a/scripts/lib/wic/plugins/source/isoimage-isohybrid.py
+++ b/scripts/lib/wic/plugins/source/isoimage-isohybrid.py
@@ -174,8 +174,8 @@ class IsoImagePlugin(SourcePlugin):
             else:
                 msger.error("Couldn't find or build initrd, exiting.\n")
 
-            exec_cmd("find %s | cpio -o -H newc >%s/initrd.cpio " \
-                    % (initrd_dir, cr_workdir), as_shell=True)
+            exec_cmd("cd %s && find . | cpio -o -H newc -R +0:+0 >./initrd.cpio " \
+                    % initrd_dir, as_shell=True)
             exec_cmd("gzip -f -9 -c %s/initrd.cpio > %s" \
                     % (cr_workdir, initrd), as_shell=True)
             shutil.rmtree(initrd_dir)
-- 
2.7.4