우성님꺼 보고 늘 서버세팅하는데 오류가 발생합니다.

음 패키지 업데이트 서버가 다운됐나봅니다.

국내 것으로 바꾸면 될 듯 합니다.

https://www.google.com/amp/s/extrememanual.net/31309?amp

# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://us.archive.ubuntu.com/ubuntu groovy main restricted
# deb-src http://us.archive.ubuntu.com/ubuntu groovy main restricted

## Major bug fix updates produced after the final release of the
## distribution.
deb http://us.archive.ubuntu.com/ubuntu groovy-updates main restricted
# deb-src http://us.archive.ubuntu.com/ubuntu groovy-updates main restricted

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://us.archive.ubuntu.com/ubuntu groovy universe
# deb-src http://us.archive.ubuntu.com/ubuntu groovy universe
deb http://us.archive.ubuntu.com/ubuntu groovy-updates universe
# deb-src http://us.archive.ubuntu.com/ubuntu groovy-updates universe

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://us.archive.ubuntu.com/ubuntu groovy multiverse
# deb-src http://us.archive.ubuntu.com/ubuntu groovy multiverse
deb http://us.archive.ubuntu.com/ubuntu groovy-updates multiverse
# deb-src http://us.archive.ubuntu.com/ubuntu groovy-updates multiverse

## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb http://us.archive.ubuntu.com/ubuntu groovy-backports main restricted universe multiverse
# deb-src http://us.archive.ubuntu.com/ubuntu groovy-backports main restricted universe multiverse

## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
# deb http://archive.canonical.com/ubuntu groovy partner
# deb-src http://archive.canonical.com/ubuntu groovy partner

deb http://us.archive.ubuntu.com/ubuntu groovy-security main restricted
# deb-src http://us.archive.ubuntu.com/ubuntu groovy-security main restricted
deb http://us.archive.ubuntu.com/ubuntu groovy-security universe
# deb-src http://us.archive.ubuntu.com/ubuntu groovy-security universe
deb http://us.archive.ubuntu.com/ubuntu groovy-security multiverse
# deb-src http://us.archive.ubuntu.com/ubuntu groovy-security multiverse
~
~
~
~
~

http://us.archive.ubuntu.com 이주소를 다른것으로 바꿔야한다는 말씀인지 궁금하빈다.

넵 해당 부분을 카카오 쪽으로 바꾸면 될거예요