>>309
klue3.0でbiobic mainのリポジトリ生きている
/etc/apt/sources.list
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://jp.archive.ubuntu.com/ubuntu/ bionic main restricted
# deb-src http://jp.archive.ubuntu.com/ubuntu/ bionic main restricted