・apt-show-versions -u |grep libc6の結果(/etc/apt/source.listをlennyからtestingに変えて、aptitude updateしました) libc6/testing upgradeable from 2.7-18lenny2 to 2.10.2-9 libc6-dev/testing upgradeable from 2.7-18lenny2 to 2.10.2-9 libc6-i686/testing upgradeable from 2.7-18lenny2 to 2.10.2-9