debian apt updateはDVDを許可しません

Question

髪の毛を抜いていきます。私はdebian 9システムなしインターネットアクセスを持っていて、適切な更新を試みます。しかし、常に同じエラーメッセージが表示されます（以下を参照）。安全でないリポジトリを許可するためにいくつかのオプションを試しましたが、何も機能しないようです。どんな助けにも感謝します。

# apt update Ign:1 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch InRelease Err:2 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch Release Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs Reading package lists... Done E: The repository 'cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch Release' does not have a Release file. N: Updating from such a repository can't be done securely, and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details.

Sources.listの内容：

# cat /etc/apt/sources.list deb cdrom:[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25]/ stretch contrib main

これが私のapt-configです。多分、これに少し光を当てることができます。

# apt-config dump APT ""; APT::Architecture "AMD64"; APT::Build-Essential ""; APT::Build-Essential:: "build-essential"; APT::Install-Recommends "1"; APT::Install-Suggests "0"; APT::Sandbox ""; APT::Sandbox::User "_apt"; APT::Authentication ""; APT::Authentication::TrustCDROM "true"; APT::NeverAutoRemove ""; APT::NeverAutoRemove:: "^firmware-linux.*"; APT::NeverAutoRemove:: "^linux-firmware$"; APT::NeverAutoRemove:: "^linux-image-3\.16\.0-4-AMD64$"; APT::NeverAutoRemove:: "^linux-image-4\.9\.0-4-AMD64$"; APT::NeverAutoRemove:: "^linux-headers-3\.16\.0-4-AMD64$"; APT::NeverAutoRemove:: "^linux-headers-4\.9\.0-4-AMD64$"; APT::NeverAutoRemove:: "^linux-image-extra-3\.16\.0-4-AMD64$"; APT::NeverAutoRemove:: "^linux-image-extra-4\.9\.0-4-AMD64$"; APT::NeverAutoRemove:: "^linux-signed-image-3\.16\.0-4-AMD64$"; APT::NeverAutoRemove:: "^linux-signed-image-4\.9\.0-4-AMD64$"; APT::NeverAutoRemove:: "^kfreebsd-image-3\.16\.0-4-AMD64$"; APT::NeverAutoRemove:: "^kfreebsd-image-4\.9\.0-4-AMD64$"; APT::NeverAutoRemove:: "^kfreebsd-headers-3\.16\.0-4-AMD64$"; APT::NeverAutoRemove:: "^kfreebsd-headers-4\.9\.0-4-AMD64$"; APT::NeverAutoRemove:: "^gnumach-image-3\.16\.0-4-AMD64$"; APT::NeverAutoRemove:: "^gnumach-image-4\.9\.0-4-AMD64$"; APT::NeverAutoRemove:: "^.*-modules-3\.16\.0-4-AMD64$"; APT::NeverAutoRemove:: "^.*-modules-4\.9\.0-4-AMD64$"; APT::NeverAutoRemove:: "^.*-kernel-3\.16\.0-4-AMD64$"; APT::NeverAutoRemove:: "^.*-kernel-4\.9\.0-4-AMD64$"; APT::NeverAutoRemove:: "^linux-backports-modules-.*-3\.16\.0-4-AMD64$"; APT::NeverAutoRemove:: "^linux-backports-modules-.*-4\.9\.0-4-AMD64$"; APT::NeverAutoRemove:: "^linux-tools-3\.16\.0-4-AMD64$"; APT::NeverAutoRemove:: "^linux-tools-4\.9\.0-4-AMD64$"; APT::VersionedKernelPackages ""; APT::VersionedKernelPackages:: "linux-image"; APT::VersionedKernelPackages:: "linux-headers"; APT::VersionedKernelPackages:: "linux-image-extra"; APT::VersionedKernelPackages:: "linux-signed-image"; APT::VersionedKernelPackages:: "kfreebsd-image"; APT::VersionedKernelPackages:: "kfreebsd-headers"; APT::VersionedKernelPackages:: "gnumach-image"; APT::VersionedKernelPackages:: ".*-modules"; APT::VersionedKernelPackages:: ".*-kernel"; APT::VersionedKernelPackages:: "linux-backports-modules-.*"; APT::VersionedKernelPackages:: "linux-tools"; APT::Never-MarkAuto-Sections ""; APT::Never-MarkAuto-Sections:: "metapackages"; APT::Never-MarkAuto-Sections:: "contrib/metapackages"; APT::Never-MarkAuto-Sections:: "non-free/metapackages"; APT::Never-MarkAuto-Sections:: "restricted/metapackages"; APT::Never-MarkAuto-Sections:: "universe/metapackages"; APT::Never-MarkAuto-Sections:: "multiverse/metapackages"; APT::Move-Autobit-Sections ""; APT::Move-Autobit-Sections:: "oldlibs"; APT::Move-Autobit-Sections:: "contrib/oldlibs"; APT::Move-Autobit-Sections:: "non-free/oldlibs"; APT::Move-Autobit-Sections:: "restricted/oldlibs"; APT::Move-Autobit-Sections:: "universe/oldlibs"; APT::Move-Autobit-Sections:: "multiverse/oldlibs"; APT::Architectures ""; APT::Architectures:: "AMD64"; APT::Architectures:: "i386"; APT::Compressor ""; APT::Compressor::. ""; APT::Compressor::.::Name "."; APT::Compressor::.::Extension ""; APT::Compressor::.::Binary ""; APT::Compressor::.::Cost "0"; APT::Compressor::lz4 ""; APT::Compressor::lz4::Name "lz4"; APT::Compressor::lz4::Extension ".lz4"; APT::Compressor::lz4::Binary "false"; APT::Compressor::lz4::Cost "50"; APT::Compressor::gzip ""; APT::Compressor::gzip::Name "gzip"; APT::Compressor::gzip::Extension ".gz"; APT::Compressor::gzip::Binary "gzip"; APT::Compressor::gzip::Cost "100"; APT::Compressor::gzip::CompressArg ""; APT::Compressor::gzip::CompressArg:: "-6n"; APT::Compressor::gzip::UncompressArg ""; APT::Compressor::gzip::UncompressArg:: "-d"; APT::Compressor::xz ""; APT::Compressor::xz::Name "xz"; APT::Compressor::xz::Extension ".xz"; APT::Compressor::xz::Binary "xz"; APT::Compressor::xz::Cost "200"; APT::Compressor::xz::CompressArg ""; APT::Compressor::xz::CompressArg:: "-6"; APT::Compressor::xz::UncompressArg ""; APT::Compressor::xz::UncompressArg:: "-d"; APT::Compressor::bzip2 ""; APT::Compressor::bzip2::Name "bzip2"; APT::Compressor::bzip2::Extension ".bz2"; APT::Compressor::bzip2::Binary "bzip2"; APT::Compressor::bzip2::Cost "300"; APT::Compressor::bzip2::CompressArg ""; APT::Compressor::bzip2::CompressArg:: "-6"; APT::Compressor::bzip2::UncompressArg ""; APT::Compressor::bzip2::UncompressArg:: "-d"; APT::Compressor::lzma ""; APT::Compressor::lzma::Name "lzma"; APT::Compressor::lzma::Extension ".lzma"; APT::Compressor::lzma::Binary "xz"; APT::Compressor::lzma::Cost "400"; APT::Compressor::lzma::CompressArg ""; APT::Compressor::lzma::CompressArg:: "--format=lzma"; APT::Compressor::lzma::CompressArg:: "-6"; APT::Compressor::lzma::UncompressArg ""; APT::Compressor::lzma::UncompressArg:: "--format=lzma"; APT::Compressor::lzma::UncompressArg:: "-d"; Dir "/"; Dir::State "var/lib/apt"; Dir::State::lists "lists/"; Dir::State::cdroms "cdroms.list"; Dir::State::mirrors "mirrors/"; Dir::State::extended_states "extended_states"; Dir::State::status "/var/lib/dpkg/status"; Dir::Cache "var/cache/apt"; Dir::Cache::archives "archives/"; Dir::Cache::srcpkgcache "srcpkgcache.bin"; Dir::Cache::pkgcache "pkgcache.bin"; Dir::Etc "etc/apt"; Dir::Etc::sourcelist "sources.list"; Dir::Etc::sourceparts "sources.list.d"; Dir::Etc::main "apt.conf"; Dir::Etc::netrc "auth.conf"; Dir::Etc::parts "apt.conf.d"; Dir::Etc::preferences "preferences"; Dir::Etc::preferencesparts "preferences.d"; Dir::Etc::trusted "trusted.gpg"; Dir::Etc::trustedparts "trusted.gpg.d"; Dir::Bin ""; Dir::Bin::methods "/usr/lib/apt/methods"; Dir::Bin::solvers ""; Dir::Bin::solvers:: "/usr/lib/apt/solvers"; Dir::Bin::planners ""; Dir::Bin::planners:: "/usr/lib/apt/planners"; Dir::Bin::dpkg "/usr/bin/dpkg"; Dir::Bin::gzip "/bin/gzip"; Dir::Bin::bzip2 "/bin/bzip2"; Dir::Bin::xz "/usr/bin/xz"; Dir::Bin::lz4 "/usr/bin/lz4"; Dir::Bin::lzma "/usr/bin/xz"; Dir::Media ""; Dir::Media::MountPath "/media/cdrom"; Dir::Log "var/log/apt"; Dir::Log::Terminal "term.log"; Dir::Log::History "history.log"; Dir::Log::Planner "eipp.log.xz"; Dir::Ignore-Files-Silently ""; Dir::Ignore-Files-Silently:: "~$"; Dir::Ignore-Files-Silently:: "\.disabled$"; Dir::Ignore-Files-Silently:: "\.bak$"; Dir::Ignore-Files-Silently:: "\.dpkg-[a-z]+$"; Dir::Ignore-Files-Silently:: "\.ucf-[a-z]+$"; Dir::Ignore-Files-Silently:: "\.save$"; Dir::Ignore-Files-Silently:: "\.orig$"; Dir::Ignore-Files-Silently:: "\.distUpgrade$"; Acquire ""; Acquire::AllowInsecureRepositories "0"; Acquire::AllowWeakRepositories "0"; Acquire::AllowDowngradeToInsecureRepositories "0"; Acquire::cdrom ""; Acquire::cdrom::mount "/media/cdrom"; Acquire::IndexTargets ""; Acquire::IndexTargets::deb ""; Acquire::IndexTargets::deb::Packages ""; Acquire::IndexTargets::deb::Packages::MetaKey "$(COMPONENT)/binary-$(ARCHITECTURE)/Packages"; Acquire::IndexTargets::deb::Packages::flatMetaKey "Packages"; Acquire::IndexTargets::deb::Packages::ShortDescription "Packages"; Acquire::IndexTargets::deb::Packages::Description "$(RELEASE)/$(COMPONENT) $(ARCHITECTURE) Packages"; Acquire::IndexTargets::deb::Packages::flatDescription "$(RELEASE) Packages"; Acquire::IndexTargets::deb::Packages::Optional "0"; Acquire::IndexTargets::deb::Translations ""; Acquire::IndexTargets::deb::Translations::MetaKey "$(COMPONENT)/i18n/Translation-$(LANGUAGE)"; Acquire::IndexTargets::deb::Translations::flatMetaKey "$(LANGUAGE)"; Acquire::IndexTargets::deb::Translations::ShortDescription "Translation-$(LANGUAGE)"; Acquire::IndexTargets::deb::Translations::Description "$(RELEASE)/$(COMPONENT) Translation-$(LANGUAGE)"; Acquire::IndexTargets::deb::Translations::flatDescription "$(RELEASE) Translation-$(LANGUAGE)"; Acquire::IndexTargets::deb-src ""; Acquire::IndexTargets::deb-src::Sources ""; Acquire::IndexTargets::deb-src::Sources::MetaKey "$(COMPONENT)/source/Sources"; Acquire::IndexTargets::deb-src::Sources::flatMetaKey "Sources"; Acquire::IndexTargets::deb-src::Sources::ShortDescription "Sources"; Acquire::IndexTargets::deb-src::Sources::Description "$(RELEASE)/$(COMPONENT) Sources"; Acquire::IndexTargets::deb-src::Sources::flatDescription "$(RELEASE) Sources"; Acquire::IndexTargets::deb-src::Sources::Optional "0"; Acquire::Changelogs ""; Acquire::Changelogs::URI ""; Acquire::Changelogs::URI::Origin ""; Acquire::Changelogs::URI::Origin::Debian "http://metadata.ftp-master.debian.org/changelogs/@CHANGEPATH@_changelog"; Acquire::Changelogs::URI::Origin::Tanglu "http://metadata.tanglu.org/changelogs/@CHANGEPATH@_changelog"; Acquire::Changelogs::URI::Origin::Ubuntu "http://changelogs.ubuntu.com/changelogs/pool/@CHANGEPATH@/changelog"; Acquire::Changelogs::URI::Origin::Ultimedia "http://packages.ultimediaos.com/changelogs/pool/@CHANGEPATH@/changelog.txt"; Acquire::Changelogs::AlwaysOnline ""; Acquire::Changelogs::AlwaysOnline::Origin ""; Acquire::Changelogs::AlwaysOnline::Origin::Ubuntu "1"; Acquire::Languages ""; Acquire::Languages:: "en_US"; Acquire::Languages:: "en"; Acquire::Languages:: "none"; Acquire::CompressionTypes ""; Acquire::CompressionTypes::xz "xz"; Acquire::CompressionTypes::bz2 "bzip2"; Acquire::CompressionTypes::lzma "lzma"; Acquire::CompressionTypes::gz "gzip"; Acquire::CompressionTypes::lz4 "lz4"; DPkg ""; DPkg::Pre-Install-Pkgs ""; DPkg::Pre-Install-Pkgs:: "/usr/bin/apt-listchanges --apt || test $? -lt 10"; DPkg::Pre-Install-Pkgs:: "/usr/sbin/dpkg-preconfigure --apt || true"; DPkg::Tools ""; DPkg::Tools::Options ""; DPkg::Tools::Options::/usr/bin/apt-listchanges ""; DPkg::Tools::Options::/usr/bin/apt-listchanges::Version "2"; DPkg::Tools::Options::/usr/bin/apt-listchanges::InfoFD "20"; Dpkg:Progress-Fancy "1"; Binary "apt-config"; Binary::apt ""; Binary::apt::APT ""; Binary::apt::APT::Color "1"; Binary::apt::APT::Cache ""; Binary::apt::APT::Cache::Show ""; Binary::apt::APT::Cache::Show::Version "2"; Binary::apt::APT::Cache::AllVersions "0"; Binary::apt::APT::Cache::ShowVirtuals "1"; Binary::apt::APT::Cache::Search ""; Binary::apt::APT::Cache::Search::Version "2"; Binary::apt::APT::Cache::ShowDependencyType "1"; Binary::apt::APT::Cache::ShowVersion "1"; Binary::apt::APT::Get ""; Binary::apt::APT::Get::Upgrade-Allow-New "1"; Binary::apt::APT::Cmd ""; Binary::apt::APT::Cmd::Show-Update-Stats "1"; Binary::apt::APT::Keep-Downloaded-Packages "0"; Binary::apt::DPkg ""; Binary::apt::DPkg::Progress-Fancy "1"; Binary::apt-get ""; Binary::apt-get::Acquire ""; Binary::apt-get::Acquire::AllowInsecureRepositories "1"; CommandLine ""; CommandLine::AsString "apt-config dump";

apt --allow-unauthenticated update

Ign:1 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch InRelease Err:2 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch Release Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs Reading package lists... Done E: The repository 'cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch Release' does not have a Release file. N: Updating from such a repository can't be done securely, and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details.

apt-get --allow-unauthenticated update

Ign:1 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch InRelease Ign:2 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch Release Ign:3 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib i386 Packages Ign:4 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib AMD64 Packages Ign:5 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib all Packages Ign:6 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib Translation-en Ign:7 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib Translation-en_US Ign:8 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main i386 Packages Ign:9 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main all Packages Ign:10 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main AMD64 Packages Ign:11 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main Translation-en_US Ign:12 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main Translation-en Ign:3 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib i386 Packages Ign:4 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib AMD64 Packages Ign:5 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib all Packages Ign:6 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib Translation-en Ign:7 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib Translation-en_US Ign:8 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main i386 Packages Ign:9 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main all Packages Ign:10 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main AMD64 Packages Ign:11 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main Translation-en_US Ign:12 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main Translation-en Ign:3 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib i386 Packages Ign:4 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib AMD64 Packages Ign:5 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib all Packages Ign:6 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib Translation-en Ign:7 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib Translation-en_US Ign:8 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main i386 Packages Ign:9 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main all Packages Ign:10 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main AMD64 Packages Ign:11 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main Translation-en_US Ign:12 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main Translation-en Ign:3 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib i386 Packages Ign:4 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib AMD64 Packages Ign:5 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib all Packages Ign:6 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib Translation-en Ign:7 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib Translation-en_US Ign:8 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main i386 Packages Ign:9 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main all Packages Ign:10 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main AMD64 Packages Ign:11 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main Translation-en_US Ign:12 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main Translation-en Ign:3 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib i386 Packages Ign:4 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib AMD64 Packages Ign:5 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib all Packages Ign:6 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib Translation-en Ign:7 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib Translation-en_US Ign:8 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main i386 Packages Ign:9 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main all Packages Ign:10 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main AMD64 Packages Ign:11 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main Translation-en_US Ign:12 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main Translation-en Err:3 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib i386 Packages Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs Ign:4 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib AMD64 Packages Reading package lists... Done W: The repository 'cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch Release' does not have a Release file. N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use. N: See apt-secure(8) manpage for repository creation and user configuration details. E: Failed to fetch cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25]/dists/stretch/contrib/binary-i386/Packages Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs E: Some index files failed to download. They have been ignored, or old ones used instead.

アップデート1

sources.listchangedを使用すると、apt updateの最後の出力が異なります。

sources.list

deb [ trusted=yes ] cdrom:[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25]/ stretch contrib main

適切な更新

Ign:1 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch InRelease Ign:2 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch Release Ign:3 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib AMD64 Packages Ign:4 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib all Packages Ign:5 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib i386 Packages Ign:6 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib Translation-en Ign:7 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib Translation-en_US Ign:8 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main all Packages Ign:9 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main i386 Packages Ign:10 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main AMD64 Packages Ign:11 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main Translation-en Ign:12 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main Translation-en_US Ign:3 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib AMD64 Packages Ign:4 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib all Packages Ign:5 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib i386 Packages Ign:6 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib Translation-en Ign:7 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib Translation-en_US Ign:8 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main all Packages Ign:9 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main i386 Packages Ign:10 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main AMD64 Packages Ign:11 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main Translation-en Ign:12 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main Translation-en_US Ign:3 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib AMD64 Packages Ign:4 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib all Packages Ign:5 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib i386 Packages Ign:6 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib Translation-en Ign:7 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib Translation-en_US Ign:8 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main all Packages Ign:9 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main i386 Packages Ign:10 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main AMD64 Packages Ign:11 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main Translation-en Ign:12 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main Translation-en_US Ign:3 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib AMD64 Packages Ign:4 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib all Packages Ign:5 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib i386 Packages Ign:6 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib Translation-en Ign:7 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib Translation-en_US Ign:8 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main all Packages Ign:9 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main i386 Packages Ign:10 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main AMD64 Packages Ign:11 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main Translation-en Ign:12 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main Translation-en_US Ign:3 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib AMD64 Packages Ign:4 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib all Packages Ign:5 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib i386 Packages Ign:6 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib Translation-en Ign:7 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib Translation-en_US Ign:8 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main all Packages Ign:9 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main i386 Packages Ign:10 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main AMD64 Packages Ign:11 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main Translation-en Ign:12 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/main Translation-en_US Err:3 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib AMD64 Packages Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs Ign:4 cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25] stretch/contrib all Packages Reading package lists... Done E: Failed to fetch cdrom://[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25]/dists/stretch/contrib/binary-AMD64/Packages Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs E: Some index files failed to download. They have been ignored, or old ones used instead.

アップデート2

私はi386でmultiarchをセットアップしたことに気づきました。 dpkg --remove-architecture i386で削除しました。インストールされているi386パッケージはありませんでした。次に、sources.listからDVDを取り出し、apt-cdrom.を使用して再度追加しました。結果は同じままです。

Konrad Botor · Accepted Answer

質問とコメントで私が見たことから、あなたが間違って使用している唯一のものはtrustedオプションです。

きみの sources.listは1行スタイルの形式（ドキュメントを参照）を使用しているため、cdromを信頼できるものにする正しいエントリは次のようになります。

deb [ trusted=yes ] cdrom:[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25]/ stretch contrib main

編集：リポジトリのセキュリティに関連する他のオプションがいくつかあります。

deb [ trusted=yes allow-insecure=yes allow-weak=yes allow-downgrade-to-insecure=yes ] cdrom:[Debian GNU/Linux 9.5.0 _Stretch_ - Official AMD64 DVD Binary-1 20180714-10:25]/ stretch contrib main