Example error:
root@tutorialspots:~# apt install nodejs Reading package lists... Done Building dependency tree... Done Reading state information... Done The following packages were automatically installed and are no longer required: libevent-pthreads-2.1-7 libmecab2 libprotobuf-lite23 mecab-ipadic mecab-ipadic-utf8 mecab-utils Use 'apt autoremove' to remove them. The following additional packages will be installed: libnode72 nodejs-doc Suggested packages: npm The following NEW packages will be installed: libnode72 nodejs nodejs-doc 0 upgraded, 3 newly installed, 0 to remove and 228 not upgraded. Need to get 13.3 MB of archives. After this operation, 51.6 MB of additional disk space will be used. Do you want to continue? [Y/n] y Ign:1 http://sg.archive.ubuntu.com/ubuntu jammy-updates/universe amd64 libnode72 amd64 12.22.9~dfsg-1ubuntu3.5 Ign:2 http://sg.archive.ubuntu.com/ubuntu jammy-updates/universe amd64 nodejs-doc all 12.22.9~dfsg-1ubuntu3.5 Ign:3 http://sg.archive.ubuntu.com/ubuntu jammy-updates/universe amd64 nodejs amd64 12.22.9~dfsg-1ubuntu3.5 Err:1 http://sg.archive.ubuntu.com/ubuntu jammy-updates/universe amd64 libnode72 amd64 12.22.9~dfsg-1ubuntu3.5 404 Not Found [IP: 202.79.180.254 80] Err:2 http://sg.archive.ubuntu.com/ubuntu jammy-updates/universe amd64 nodejs-doc all 12.22.9~dfsg-1ubuntu3.5 404 Not Found [IP: 202.79.180.254 80] Err:3 http://sg.archive.ubuntu.com/ubuntu jammy-updates/universe amd64 nodejs amd64 12.22.9~dfsg-1ubuntu3.5 404 Not Found [IP: 202.79.180.254 80] E: Failed to fetch http://sg.archive.ubuntu.com/ubuntu/pool/universe/n/nodejs/libnode72_12.22.9%7edfsg-1ubuntu3.5_amd64.deb 404 Not Found [IP: 202.79.180.254 80] E: Failed to fetch http://sg.archive.ubuntu.com/ubuntu/pool/universe/n/nodejs/nodejs-doc_12.22.9%7edfsg-1ubuntu3.5_all.deb 404 Not Found [IP: 202.79.180.254 80] E: Failed to fetch http://sg.archive.ubuntu.com/ubuntu/pool/universe/n/nodejs/nodejs_12.22.9%7edfsg-1ubuntu3.5_amd64.deb 404 Not Found [IP: 202.79.180.254 80] E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?
Solution:
Step 1: restore the default repositories:
mkdir ~/backup cd ~/backup/ cat << EOF > ~/backup/sources.list deb http://archive.ubuntu.com/ubuntu/ focal main restricted universe multiverse deb-src http://archive.ubuntu.com/ubuntu/ focal main restricted universe multiverse deb http://archive.ubuntu.com/ubuntu/ focal-updates main restricted universe multiverse deb-src http://archive.ubuntu.com/ubuntu/ focal-updates main restricted universe multiverse deb http://archive.ubuntu.com/ubuntu/ focal-security main restricted universe multiverse deb-src http://archive.ubuntu.com/ubuntu/ focal-security main restricted universe multiverse deb http://archive.ubuntu.com/ubuntu/ focal-backports main restricted universe multiverse deb-src http://archive.ubuntu.com/ubuntu/ focal-backports main restricted universe multiverse deb http://archive.canonical.com/ubuntu focal partner deb-src http://archive.canonical.com/ubuntu focal partner EOF sudo sed -i "s/focal/$(lsb_release -c -s)/" ~/backup/sources.list sudo rm /etc/apt/sources.list sudo cp ~/backup/sources.list /etc/apt/sources.list
Step 2: Move all the PPAs in your system to backup folder:
sudo mv /etc/apt/sources.list.d/* ~/backup
Step 3: Update the repositories:
sudo apt update
