If /dev/net/tun is either not present or is not writable by the user, then show an appropriate error message. (QEMU needs access to this device in order to enable networking; it may be missing if it is not enabled or loaded into the kernel, and some distributions such as CentOS 5.x set restrictive permissions upon it.)
Signed-off-by: Paul Eggleton <[email protected]> --- scripts/runqemu | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-) diff --git a/scripts/runqemu b/scripts/runqemu index 4adeace..bed6a29 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 -- 1.7.5.4 _______________________________________________ Openembedded-core mailing list [email protected] http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-core
