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| author | Paul Eggleton <paul.eggleton@linux.intel.com> | 2011-12-14 16:37:24 +0000 |
|---|---|---|
| committer | Richard Purdie <richard.purdie@linuxfoundation.org> | 2011-12-15 14:17:18 +0000 |
| commit | a00b94900d437828f25debce1c30ffcc0bbf29e9 (patch) | |
| tree | fd0026e606604f8852d524b36ea1794f813db968 /scripts | |
| parent | 8c21c71f005b601f58925e9912f2cf44127e291d (diff) | |
| download | openembedded-core-a00b94900d437828f25debce1c30ffcc0bbf29e9.tar.gz openembedded-core-a00b94900d437828f25debce1c30ffcc0bbf29e9.tar.bz2 openembedded-core-a00b94900d437828f25debce1c30ffcc0bbf29e9.tar.xz openembedded-core-a00b94900d437828f25debce1c30ffcc0bbf29e9.zip | |
scripts/runqemu: show an error if /dev/net/tun is unusable
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 <paul.eggleton@linux.intel.com>
Diffstat (limited to 'scripts')
| -rwxr-xr-x | scripts/runqemu | 8 |
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 |