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-rwxr-xr-xscripts/runqemu8
1 files changed, 8 insertions, 0 deletions
diff --git a/scripts/runqemu b/scripts/runqemu
index 4adeacece..bed6a2948 100755
--- a/scripts/runqemu
+++ b/scripts/runqemu
@@ -194,6 +194,14 @@ while [ $i -le $# ]; do
i=$((i + 1))
done
+if [ ! -c /dev/net/tun ] ; then
+ echo "TUN control device /dev/net/tun is unavailable; you may need to enable TUN (e.g. sudo modprobe tun)"
+ exit 1
+elif [ ! -w /dev/net/tun ] ; then
+ echo "TUN control device /dev/net/tun is not writable, please fix (e.g. sudo chmod 666 /dev/net/tun)"
+ exit 1
+fi
+
YOCTO_KVM_WIKI="https://wiki.yoctoproject.org/wiki/How_to_enable_KVM_for_Poky_qemu"
# Detect KVM configuration
if [[ "x$KVM_ENABLED" == "xyes" ]]; then