image.py, rootfs.py, package_manager.py: redirect stderr to stdout when calling check_output()

If a command executed with subprocess.check_output() fails, the
subprocess.CalledProcessError.output contains only STDOUT and the user
needs to check the log.do_rootfs to see any other details.

This commit forwards stderr to stdout so that, in case of failure, the
entire error output will be displayed in terminal.

[YOCTO #5902]

(From OE-Core rev: 4661f1441429952f30e19cebd93dc42ce31fd868)

Signed-off-by: Laurentiu Palcu <laurentiu.palcu@intel.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/meta/lib/oe/image.py b/meta/lib/oe/image.py
index 488683e42a..a03b73e4c0 100644
--- a/meta/lib/oe/image.py
+++ b/meta/lib/oe/image.py
@@ -11,7 +11,7 @@ def generate_image(arg):
             (type, create_img_cmd))
 
     try:
-        subprocess.check_output(create_img_cmd)
+        subprocess.check_output(create_img_cmd, stderr=subprocess.STDOUT)
     except subprocess.CalledProcessError as e:
         return("Error: The image creation script '%s' returned %d:\n%s" %
                (e.cmd, e.returncode, e.output))