Add a bind mount of /dev to the chroot.

src/scripts/enter_chroot.sh

 #!/bin/bash
 
 # Copyright (c) 2009 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # Script to enter the chroot environment
 
 # Load common constants.  This should be the first executable line.
 # The path to common.sh should be relative to your script's location.
@@ skipping 75 matching lines @@
           die "Could not mount $MOUNTED_PATH"
     fi
 
     MOUNTED_PATH="$(readlink -f "$FLAGS_chroot/sys")"
     if [ -z "$(mount | grep -F "on $MOUNTED_PATH ")" ]
     then
       sudo mount none -t sysfs "$MOUNTED_PATH" || \
           die "Could not mount $MOUNTED_PATH"
     fi
 
-    MOUNTED_PATH="$(readlink -f "$FLAGS_chroot/dev/pts")"
+    MOUNTED_PATH="$(readlink -f "${FLAGS_chroot}/dev")"
     if [ -z "$(mount | grep -F "on $MOUNTED_PATH ")" ]
     then
-      sudo mount none -t devpts "$MOUNTED_PATH" || \
+      sudo mount --bind /dev "$MOUNTED_PATH" || \
           die "Could not mount $MOUNTED_PATH"
     fi
 
     MOUNTED_PATH="$(readlink -f "${FLAGS_chroot}$CHROOT_TRUNK_DIR")"
     if [ -z "$(mount | grep -F "on $MOUNTED_PATH ")" ]
     then
       sudo mount --bind "$FLAGS_trunk" "$MOUNTED_PATH" || \
           die "Could not mount $MOUNTED_PATH"
     fi
 
@@ skipping 25 matching lines @@
         echo "Mounting depot_tools"
         DEPOT_TOOLS=$(dirname $(which gclient) )
         mkdir -p "$MOUNTED_PATH"
         if ! sudo mount --bind "$DEPOT_TOOLS" "$MOUNTED_PATH"; then
           echo "depot_tools failed to mount; perhaps it's on NFS?"
           echo "This may impact chromium build."
         fi
       fi
     fi
 
-    # Mount fuse device from host machine into chroot and copy over
-    # corresponding kernel modules.
-    MOUNTED_PATH="$(readlink -f "${FLAGS_chroot}${FUSE_DEVICE}")"
-    if [ -z "$(mount | grep -F "on ${MOUNTED_PATH} ")" ] && \
-      [ -c "${FUSE_DEVICE}" ] ; then
-      echo "Attempting to mount fuse device for gmergefs"
-      sudo touch "${MOUNTED_PATH}"
-      sudo mount --bind "${FUSE_DEVICE}" "${MOUNTED_PATH}"
+    # Install fuse module.
+    if [ -c "${FUSE_DEVICE}" ] ; then
       sudo modprobe fuse 2> /dev/null ||\
         echo "-- Note: modprobe fuse failed.  gmergefs will not work"
     fi
 
   ) 200>>"$LOCKFILE" || die "setup_env failed"
 }
 
 function teardown_env {
   # Only teardown if we're the last enter_chroot to die
   (
@@ skipping 82 matching lines @@
 
 # Run command or interactive shell.  Also include the non-chrooted path to
 # the source trunk for scripts that may need to print it (e.g.
 # build_image.sh).
 sudo chroot "$FLAGS_chroot" sudo -i -u $USER $CHROOT_PASSTHRU \
   EXTERNAL_TRUNK_PATH="${FLAGS_trunk}" LANG=C "$@"
 
 # Remove trap and explicitly unmount
 trap - EXIT
 teardown_env