Add a brief doc section for common build problems.

Also add a helpful hint for the oe-selftest grub problem.

2 files changed, 12 insertions, 1 deletions

diff --git a/README.adoc b/README.adoc
index 0917e45..a85be18 100644
--- a/README.adoc
+++ b/README.adoc
@@ -44,6 +44,16 @@ and get as a result an "ostree_repo" folder in your images directory (tmp/deploy
 
 Although aglsetup.sh hooks provide reasonable defaults for SOTA-related variables, you may want to tune some of them.
 
+=== Build problems
+
+Multilib systems may require adding this line to `local.conf`:
+
+....
+HOSTTOOLS += "x86_64-linux-gnu-gcc"
+....
+
+Ubuntu users that encounter an error due to missing `Python.h` should install `libpython2.7-dev` on their host machine.
+
 == Supported boards
 
 Currently supported platforms are
diff --git a/lib/oeqa/selftest/cases/updater.py b/lib/oeqa/selftest/cases/updater.py
index 253320d..9264616 100644
--- a/lib/oeqa/selftest/cases/updater.py
+++ b/lib/oeqa/selftest/cases/updater.py
@@ -165,7 +165,8 @@ class GrubTests(OESelftestTestCase):
         # Strip off line ending.
         value_str = value.decode()[:-1]
         self.assertEqual(value_str, machine,
-                         'MACHINE does not match hostname: ' + machine + ', ' + value_str)
+                         'MACHINE does not match hostname: ' + machine + ', ' + value_str +
+                         '\nIs tianocore ovmf installed?')
         print(value_str)