aptitude로 설치하다가 나타난 경고 메시지를 기록해두면,
WARNING: untrusted versions of the following packages will be installed!Package libcap1(우분투)에서 정보를 더 찾을 수 있다.
Untrusted packages could compromise your system's security. You should only proceed with the installation if you are certain that this is what you want to do.
* libcap1 [version 1:1.10-14build1]
[Really continue] [Abort Installation]
