Comment 25 for bug 65003

An alternative work around would be for debootstrap to move the log outside of the debootstrap directory, unlink, then "rm -rf" the debootstrap directory. This would leave the logs .nfs* file in the chroot root until debootstrap completes:

    if [ -e $TARGET/debootstrap/debootstrap.log ]; then
      mv $TARGET/debootstrap/debootstrap.log $TARGET/debootstrap.log
      rm $TARGET/debootstrap.log
    fi
    rm -rf "$TARGET/debootstrap"

Or just update the log copy section to move:

  if [ -e $TARGET/debootstrap/debootstrap.log ]; then
    if [ "$KEEP_DEBOOTSTRAP_DIR" = true ]; then
      cp $TARGET/debootstrap/debootstrap.log $TARGET/var/log/bootstrap.log
    else
      mv $TARGET/debootstrap/debootstrap.log $TARGET/var/log/bootstrap.log
    fi
  fi
  sync