[kvm]: install net-tools package for debug

Signed-off-by: Guohan Lu <lguohan@gmail.com>

check_install.py

@@ -58,6 +58,8 @@ def main():
 
     # check version
     time.sleep(5)
+    p.sendline('uptime')
+    p.expect([cmd_prompt])
     p.sendline('show version')
     p.expect([cmd_prompt])
     p.sendline('show ip bgp sum')

scripts/build_kvm_image.sh

@@ -48,6 +48,7 @@ prepare_installer_disk()
     umount $tmpdir
 }
 
+apt-get install -y net-tools
 create_disk
 prepare_installer_disk