우분투 한국 커뮤니티 포럼

조린 리눅스 9을 사용중입니다. 그런데 소프트웨어 업데이트에서 에러가 걸립니다.
어떻게 에러를 해결해야 하나요?

W: Duplicate sources.list entry http://security.ubuntu.com/ubuntu/ trusty-security/main amd64 Packages (/var/lib/apt/lists/security.ubuntu.com_ubuntu_dists_trusty-security_main_binary-amd64_Packages)
W: Duplicate sources.list entry http://security.ubuntu.com/ubuntu/ trusty-security/restricted amd64 Packages (/var/lib/apt/lists/security.ubuntu.com_ubuntu_dists_trusty-security_restricted_binary-amd64_Packages)
W: Duplicate sources.list entry http://security.ubuntu.com/ubuntu/ trusty-security/universe amd64 Packages (/var/lib/apt/lists/security.ubuntu.com_ubuntu_dists_trusty-security_universe_binary-amd64_Packages)
W: Duplicate sources.list entry http://security.ubuntu.com/ubuntu/ trusty-security/multiverse amd64 Packages (/var/lib/apt/lists/security.ubuntu.com_ubuntu_dists_trusty-security_multiverse_binary-amd64_Packages)
W: Duplicate sources.list entry http://security.ubuntu.com/ubuntu/ trusty-security/main i386 Packages (/var/lib/apt/lists/security.ubuntu.com_ubuntu_dists_trusty-security_main_binary-i386_Packages)
W: Duplicate sources.list entry http://security.ubuntu.com/ubuntu/ trusty-security/restricted i386 Packages (/var/lib/apt/lists/security.ubuntu.com_ubuntu_dists_trusty-security_restricted_binary-i386_Packages)
W: Duplicate sources.list entry http://security.ubuntu.com/ubuntu/ trusty-security/universe i386 Packages (/var/lib/apt/lists/security.ubuntu.com_ubuntu_dists_trusty-security_universe_binary-i386_Packages)
W: Duplicate sources.list entry http://security.ubuntu.com/ubuntu/ trusty-security/multiverse i386 Packages (/var/lib/apt/lists/security.ubuntu.com_ubuntu_dists_trusty-security_multiverse_binary-i386_Packages)

자문자답입니다.

조린리눅스9 에러 없는 노트북에서 sources.list를 복사해서 다시 설정했습니다.

sudo gedit /etc/apt/sources.list로 복사해서 붙여넣기하고 업데이트 하니 에러가 안 걸리네요~~