nano /etc/apt/sources.list.d/pmg-enterprise.list 註解掉: deb https://enterprise.proxmox.com/debian/pmg buster pmg-enterprise 進入 /etc/apt/sources.l……

cat /usr/share/doc/apt/examples/sources.list 結果: # See sources.list(5) manpage for more information # Remember that CD-ROMs, DVDs and such are ma……