apt-get 으로 install 할때 403 에러 (apt source list를 바꾸자)

swift build를 위해 clang을 설치해야 하는데 403에러가 발생했습니다.

$ sudo apt-get install clang
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages were automatically installed and are no longer required:
  linux-headers-4.10.0-28 linux-headers-4.10.0-28-generic linux-headers-4.10.0-35 linux-headers-4.10.0-35-generic linux-headers-4.10.0-37
  linux-headers-4.10.0-37-generic linux-headers-4.10.0-38 linux-headers-4.10.0-38-generic linux-headers-4.10.0-40 linux-headers-4.10.0-40-generic
  linux-headers-4.13.0-26 linux-headers-4.13.0-26-generic linux-headers-4.13.0-31 linux-headers-4.13.0-31-generic linux-image-4.10.0-28-generic
  linux-image-4.10.0-35-generic linux-image-4.10.0-37-generic linux-image-4.10.0-38-generic linux-image-4.10.0-40-generic
  linux-image-4.13.0-26-generic linux-image-4.13.0-31-generic linux-image-extra-4.10.0-28-generic linux-image-extra-4.10.0-35-generic
  linux-image-extra-4.10.0-37-generic linux-image-extra-4.10.0-38-generic linux-image-extra-4.10.0-40-generic linux-image-extra-4.13.0-26-generic
  linux-image-extra-4.13.0-31-generic
Use 'sudo apt autoremove' to remove them.
The following additional packages will be installed:
  binfmt-support clang-3.8 libclang-common-3.8-dev libclang1-3.8 libffi-dev libjsoncpp1 libobjc-5-dev libobjc4 libtinfo-dev llvm-3.8 llvm-3.8-dev
  llvm-3.8-runtime
Suggested packages:
  gnustep gnustep-devel clang-3.8-doc llvm-3.8-doc
The following NEW packages will be installed:
  binfmt-support clang clang-3.8 libclang-common-3.8-dev libclang1-3.8 libffi-dev libjsoncpp1 libobjc-5-dev libobjc4 libtinfo-dev llvm-3.8
  llvm-3.8-dev llvm-3.8-runtime
0 upgraded, 13 newly installed, 0 to remove and 101 not upgraded.
Need to get 26.9 MB/46.0 MB of archives.
After this operation, 244 MB of additional disk space will be used.
Do you want to continue? [Y/n] Y
Err:1 http://kr.archive.ubuntu.com/ubuntu xenial-updates/universe amd64 libclang1-3.8 amd64 1:3.8-2ubuntu4
  403  Forbidden
Err:2 http://kr.archive.ubuntu.com/ubuntu xenial-updates/universe amd64 libclang-common-3.8-dev amd64 1:3.8-2ubuntu4
  403  Forbidden
Err:3 http://kr.archive.ubuntu.com/ubuntu xenial-updates/universe amd64 clang-3.8 amd64 1:3.8-2ubuntu4
  403  Forbidden
Err:4 http://kr.archive.ubuntu.com/ubuntu xenial-updates/universe amd64 clang amd64 1:3.8-33ubuntu3.1
  403  Forbidden
E: Failed to fetch http://kr.archive.ubuntu.com/ubuntu/pool/universe/l/llvm-toolchain-3.8/libclang1-3.8_3.8-2ubuntu4_amd64.deb  403  Forbidden

E: Failed to fetch http://kr.archive.ubuntu.com/ubuntu/pool/universe/l/llvm-toolchain-3.8/libclang-common-3.8-dev_3.8-2ubuntu4_amd64.deb  403  Forbidden

E: Failed to fetch http://kr.archive.ubuntu.com/ubuntu/pool/universe/l/llvm-toolchain-3.8/clang-3.8_3.8-2ubuntu4_amd64.deb  403  Forbidden

E: Failed to fetch http://kr.archive.ubuntu.com/ubuntu/pool/universe/l/llvm-defaults/clang_3.8-33ubuntu3.1_amd64.deb  403  Forbidden

E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

이럴때는 source list를 바꿔줘야 합니다.

에러를 보면 http://kr.archive.ubuntu.com 이쪽에서 403 에러가 나네요. (한국 서버 관리가 안되나 봅니다.)

vim으로 source list 파일을 열어봅니다.

$ sudo vim /etc/apt/sources.list

source.list 안에있는 링크를 주석처리하고 새로운 url을 추가합니다.

#+ Ubuntu Main Repos

deb http://01.archive.ubuntu.com/ubuntu/ trusty main restricted universe multiverse 

deb-src http://01.archive.ubuntu.com/ubuntu/ trusty main restricted universe multiverse 

#+ Ubuntu Update Repos

deb http://01.archive.ubuntu.com/ubuntu/ trusty-security main restricted universe multiverse 

deb http://01.archive.ubuntu.com/ubuntu/ trusty-updates main restricted universe multiverse 

deb http://01.archive.ubuntu.com/ubuntu/ trusty-proposed main restricted universe multiverse 

deb http://01.archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiverse 

deb-src http://01.archive.ubuntu.com/ubuntu/ trusty-security main restricted universe multiverse 

deb-src http://01.archive.ubuntu.com/ubuntu/ trusty-updates main restricted universe multiverse 

deb-src http://01.archive.ubuntu.com/ubuntu/ trusty-proposed main restricted universe multiverse 

deb-src http://01.archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiverse 

그리고 apt-update를 해줍니다.

$ sudo apt-get update

이제 다시 clang을 설치하면 새로운 source url에서 받아집니다.

$ sudo apt-get install clang

여기까지 입니다.