apt-get update;
Hit:1 http://security.ubuntu.com/ubuntu xenial-security InRelease
Hit:2 http://us.archive.ubuntu.com/ubuntu xenial InRelease
Hit:3 http://us.archive.ubuntu.com/ubuntu xenial-updates InRelease
Ign:4 http://archive.mmjgroup.com/ppa xenial InRelease
Get:5 http://archive.mmjgroup.com/ppa xenial Release [17.1 kB]
Get:6 http://archive.mmjgroup.com/ppa xenial Release.gpg [316 B]
Hit:7 http://ppa.launchpad.net/lamont/prairie-net/ubuntu xenial InRelease
Ign:8 http://archive.mmjgroup.com/ppa xenial/main amd64 Packages
Ign:9 http://archive.mmjgroup.com/ppa xenial/main i386 Packages
Ign:10 http://archive.mmjgroup.com/ppa xenial/main Translation-en
Get:8 http://archive.mmjgroup.com/ppa xenial/main amd64 Packages [2,747 B]
Get:9 http://archive.mmjgroup.com/ppa xenial/main i386 Packages [2,745 B]
Ign:10 http://archive.mmjgroup.com/ppa xenial/main Translation-en
Err:10 http://archive.mmjgroup.com/ppa xenial/main Translation-en
404 Not Found [IP: 192.34.35.51 80]
Fetched 23.0 kB in 0s (49.5 kB/s)
Reading package lists... Done
E: Failed to fetch http://archive.mmjgroup.com/ppa/dists/xenial/main/i18n/Translation-en 404 Not Found [IP: 192.34.35.51 80]
E: Some index files failed to download. They have been ignored, or old ones used instead.
on the web server:
192.34.35.60 - - [03/Apr/2016:19:35:48 -0600] "GET /ppa/dists/xenial/InRelease HTTP/1.1" 404 469 "-" "Debian APT-HTTP/1.3 (1.2.9)"
192.34.35.60 - - [03/Apr/2016:19:35:48 -0600] "GET /ppa/dists/xenial/Release HTTP/1.1" 200 17440 "-" "Debian APT-HTTP/1.3 (1.2.9)"
192.34.35.60 - - [03/Apr/2016:19:35:48 -0600] "GET /ppa/dists/xenial/Release.gpg HTTP/1.1" 200 603 "-" "Debian APT-HTTP/1.3 (1.2.9)"
192.34.35.60 - - [03/Apr/2016:19:35:48 -0600] "GET /ppa/dists/xenial/main/binary-amd64/Packages.xz HTTP/1.1" 404 489 "-" "Debian APT-HTTP/1.3 (1.2.9)"
192.34.35.60 - - [03/Apr/2016:19:35:48 -0600] "GET /ppa/dists/xenial/main/binary-i386/Packages.xz HTTP/1.1" 404 0 "-" "Debian APT-HTTP/1.3 (1.2.9)"
192.34.35.60 - - [03/Apr/2016:19:35:48 -0600] "GET /ppa/dists/xenial/main/i18n/Translation-en.xz HTTP/1.1" 404 975 "-" "Debian APT-HTTP/1.3 (1.2.9)"
192.34.35.60 - - [03/Apr/2016:19:35:48 -0600] "GET /ppa/dists/xenial/main/binary-amd64/Packages.gz HTTP/1.1" 200 0 "-" "Debian APT-HTTP/1.3 (1.2.9)"
192.34.35.60 - - [03/Apr/2016:19:35:48 -0600] "GET /ppa/dists/xenial/main/binary-i386/Packages.gz HTTP/1.1" 200 6136 "-" "Debian APT-HTTP/1.3 (1.2.9)"
192.34.35.60 - - [03/Apr/2016:19:35:48 -0600] "GET /ppa/dists/xenial/main/i18n/Translation-en.gz HTTP/1.1" 404 487 "-" "Debian APT-HTTP/1.3 (1.2.9)"
192.34.35.60 - - [03/Apr/2016:19:35:48 -0600] "GET /ppa/dists/xenial/main/i18n/Translation-en HTTP/1.1" 404 484 "-" "Debian APT-HTTP/1.3 (1.2.9)"
on the machine:
ls /var/lib/apt/lists
lock
partial
ppa.launchpad.net_lamont_prairie-net_ubuntu_dists_xenial_InRelease
ppa.launchpad.net_lamont_prairie-net_ubuntu_dists_xenial_main_binary-amd64_Packages
ppa.launchpad.net_lamont_prairie-net_ubuntu_dists_xenial_main_binary-i386_Packages
ppa.launchpad.net_lamont_prairie-net_ubuntu_dists_xenial_main_i18n_Translation-en
ppa.launchpad.net_lamont_prairie-net_ubuntu_dists_xenial_main_source_Sources
security.ubuntu.com_ubuntu_dists_xenial-security_InRelease
security.ubuntu.com_ubuntu_dists_xenial-security_main_binary-amd64_Packages
security.ubuntu.com_ubuntu_dists_xenial-security_main_binary-i386_Packages
security.ubuntu.com_ubuntu_dists_xenial-security_main_i18n_Translation-en
security.ubuntu.com_ubuntu_dists_xenial-security_universe_binary-amd64_Packages
security.ubuntu.com_ubuntu_dists_xenial-security_universe_binary-i386_Packages
security.ubuntu.com_ubuntu_dists_xenial-security_universe_i18n_Translation-en
us.archive.ubuntu.com_ubuntu_dists_xenial_InRelease
us.archive.ubuntu.com_ubuntu_dists_xenial_main_binary-amd64_Packages
us.archive.ubuntu.com_ubuntu_dists_xenial_main_binary-i386_Packages
us.archive.ubuntu.com_ubuntu_dists_xenial_main_i18n_Translation-en
us.archive.ubuntu.com_ubuntu_dists_xenial_universe_binary-amd64_Packages
us.archive.ubuntu.com_ubuntu_dists_xenial_universe_binary-i386_Packages
us.archive.ubuntu.com_ubuntu_dists_xenial_universe_i18n_Translation-en
us.archive.ubuntu.com_ubuntu_dists_xenial-updates_InRelease
us.archive.ubuntu.com_ubuntu_dists_xenial-updates_main_binary-amd64_Packages
us.archive.ubuntu.com_ubuntu_dists_xenial-updates_main_binary-i386_Packages
us.archive.ubuntu.com_ubuntu_dists_xenial-updates_main_i18n_Translation-en
us.archive.ubuntu.com_ubuntu_dists_xenial-updates_universe_binary-amd64_Packages
us.archive.ubuntu.com_ubuntu_dists_xenial-updates_universe_binary-i386_Packages
us.archive.ubuntu.com_ubuntu_dists_xenial-updates_universe_i18n_Translation-en
# ls /var/lib/apt/lists/partial/
archive.mmjgroup.com_ppa_dists_xenial_main_binary-amd64_Packages
archive.mmjgroup.com_ppa_dists_xenial_main_binary-amd64_Packages.gz
archive.mmjgroup.com_ppa_dists_xenial_main_binary-i386_Packages.gz
archive.mmjgroup.com_ppa_dists_xenial_Release
archive.mmjgroup.com_ppa_dists_xenial_Release.gpg