Include ethtool binary for debugging network configuration during network boot

This should make it possible to apply specific network speed
settings or disable auto-negotiation.

Related to https://github.com/grml/grml/issues/153

diff --git a/backend/initramfs-tools/live.hook b/backend/initramfs-tools/live.hook
index 1efa687..4039345 100755 (executable)
--- a/backend/initramfs-tools/live.hook
+++ b/backend/initramfs-tools/live.hook
@@ -264,4 +264,9 @@ then
        manual_add_modules 8021q
 fi
 
+if [ -x /sbin/ethtool ]
+then
+       copy_exec /sbin/ethtool
+fi
+
 [ "${QUIET}" ] || echo .