[oe-commits] [openembedded-core] 22/23: scripts/runqemu: provide better error message on runqemu ifup fail

[git at git.openembedded.org]

rpurdie pushed a commit to branch master-next
in repository openembedded-core.

commit 4dda0163c2e8764a444127dbd2191a42a4d16c18
Author: Stephano Cetola <stephano.cetola at linux.intel.com>
AuthorDate: Thu Sep 22 18:25:08 2016 -0700

    scripts/runqemu: provide better error message on runqemu ifup fail
    
    If runqemu-ifup fails hen running testimage, a rather cryptic error
    regarding "no tty present" is displayed. If this step fails, we
    should at least point the user at runqemu-gen-tapdevs. A quick search
    of this term in the manual will lead them to "Enabling Runtime Tests
    on QEMU" which should give them all the info they need.
    
    Signed-off-by: Stephano Cetola <stephano.cetola at linux.intel.com>
    Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
---
 scripts/runqemu | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/scripts/runqemu b/scripts/runqemu
index 5095e67..45bcad7 100755
--- a/scripts/runqemu
+++ b/scripts/runqemu
@@ -786,6 +786,9 @@ class BaseConfig(object):
             self.cleantap = True
             logger.info('Created tap: %s' % tap)
 
+        if not tap:
+            logger.error("Failed to setup tap device. Run runqemu-gen-tapdevs to manually create.")
+            return 1
         self.tap = tap
         n0 = tap[3:]
         n1 = int(n0) * 2 + 1

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