diff --git a/bin/gbuild b/bin/gbuild
index dca3f4a..b3ef463 100755
--- a/bin/gbuild
+++ b/bin/gbuild
@@ -107,7 +107,7 @@ OptionParser.new do |opts|
     @options[:skip_image] = v
   end
   opts.on("-q", "--quiet", "be quiet") do |v|
-    @options[:skip_image] = v
+    @options[:quiet] = v
   end
   opts.on("-c PAIRS", "--commit PAIRS", "comma separated list of DIRECTORY=COMMIT pairs") do |v|
     @options[:commit] = v
diff --git a/bin/make-base-vm b/bin/make-base-vm
index dffca23..407cf20 100755
--- a/bin/make-base-vm
+++ b/bin/make-base-vm
@@ -3,11 +3,11 @@ set -e
 
 SUITE=lucid
 ARCH=amd64
-MIRROR=http://${MIRROR_HOST:-`hostname`}:3142/archive.ubuntu.com/ubuntu
-SECURITY_MIRROR=http://${MIRROR_HOST:-`hostname`}:3142/security.ubuntu.com/ubuntu
+MIRROR=http://${MIRROR_HOST:-10.0.2.2}:3142/archive.ubuntu.com/ubuntu
+SECURITY_MIRROR=http://${MIRROR_HOST:-10.0.2.2}:3142/security.ubuntu.com/ubuntu
 
 usage() {
-  echo "Usage: ${0##*/} [OPTION]... <command>"
+  echo "Usage: ${0##*/} [OPTION]..."
   echo "Make a base client."
   echo
   cat << EOF
@@ -17,7 +17,8 @@ usage() {
 
   The MIRROR_HOST environment variable can be used to change the
   apt-cacher host.  It should be something that the target VM can
-  resolve (not localhost).
+  resolve (not localhost).  By default it is the IP address 10.0.2.2
+  which is the host IP as visible from the guest.
 EOF
 }
 
diff --git a/libexec/start-target b/libexec/start-target
index c91963c..06e5c63 100755
--- a/libexec/start-target
+++ b/libexec/start-target
@@ -5,7 +5,7 @@
 ARCH=qemu$1
 SUFFIX=$2
 
-kvm -cpu $ARCH -m 2000 -smp 2 -drive file=target-$SUFFIX.qcow2 -net nic,model=virtio -net user,hostfwd=tcp::$VM_SSH_PORT-:22 -vnc :16 > var/target.log 2>&1 &
+kvm -cpu $ARCH -m 256 -smp 2 -drive file=target-$SUFFIX.qcow2 -net nic,model=virtio -net user,hostfwd=tcp::$VM_SSH_PORT-:22 -vnc :16 > var/target.log 2>&1 &
 
 echo $! > var/target.pid
 wait