Merge "recovery just takes a filename as an argument now (do not merge)" into gingerbread

     * Requires the {@link android.Manifest.permission#REBOOT} permission.

     *

     * @param context      the Context to use

     * @param packageFile  the update package to install.  Currently

     * must be on the /cache or /data partitions.

     * @param packageFile  the update package to install.  Must be on

     * a partition mountable by recovery.  (The set of partitions

     * known to recovery may vary from device to device.  Generally,

     * /cache and /data are safe.)

     *

     * @throws IOException  if writing the recovery command file

     * fails, or if the reboot itself fails.

    public static void installPackage(Context context, File packageFile)

        throws IOException {

        String filename = packageFile.getCanonicalPath();

        if (filename.startsWith("/cache/")) {

            filename = "CACHE:" + filename.substring(7);

        } else if (filename.startsWith("/data/")) {

            filename = "DATA:" + filename.substring(6);

        } else {

            throw new IllegalArgumentException(

                "Must start with /cache or /data: " + filename);

        }

        Log.w(TAG, "!!! REBOOTING TO INSTALL " + filename + " !!!");

        String arg = "--update_package=" + filename;

        bootCommand(context, arg);