diff --git a/pkgs/build-support/vm/default.nix b/pkgs/build-support/vm/default.nix
index 95923cace296..fe2e42855e0e 100644
--- a/pkgs/build-support/vm/default.nix
+++ b/pkgs/build-support/vm/default.nix
@@ -984,277 +984,11 @@ rec {
 
   # The set of supported RPM-based distributions.
 
-  rpmDistros = {
-
-    # Note: no i386 release for Fedora >= 26
-    fedora26x86_64 =
-      let
-        version = "26";
-      in
-      {
-        name = "fedora-${version}-x86_64";
-        fullName = "Fedora ${version} (x86_64)";
-        packagesList = fetchurl rec {
-          url = "mirror://fedora/linux/releases/${version}/Everything/x86_64/os/repodata/${sha256}-primary.xml.gz";
-          sha256 = "880055a50c05b20641530d09b23f64501a000b2f92fe252417c530178730a95e";
-        };
-        urlPrefix = "mirror://fedora/linux/releases/${version}/Everything/x86_64/os";
-        archs = [
-          "noarch"
-          "x86_64"
-        ];
-        packages = commonFedoraPackages ++ [
-          "cronie"
-          "util-linux"
-        ];
-        unifiedSystemDir = true;
-      };
-
-    fedora27x86_64 =
-      let
-        version = "27";
-      in
-      {
-        name = "fedora-${version}-x86_64";
-        fullName = "Fedora ${version} (x86_64)";
-        packagesList = fetchurl rec {
-          url = "mirror://fedora/linux/releases/${version}/Everything/x86_64/os/repodata/${sha256}-primary.xml.gz";
-          sha256 = "48986ce4583cd09825c6d437150314446f0f49fa1a1bd62dcfa1085295030fe9";
-        };
-        urlPrefix = "mirror://fedora/linux/releases/${version}/Everything/x86_64/os";
-        archs = [
-          "noarch"
-          "x86_64"
-        ];
-        packages = commonFedoraPackages ++ [
-          "cronie"
-          "util-linux"
-        ];
-        unifiedSystemDir = true;
-      };
-
-    centos6i386 =
-      let
-        version = "6.9";
-      in
-      rec {
-        name = "centos-${version}-i386";
-        fullName = "CentOS ${version} (i386)";
-        urlPrefix = "mirror://centos/${version}/os/i386";
-        packagesList = fetchurl rec {
-          url = "${urlPrefix}/repodata/${sha256}-primary.xml.gz";
-          sha256 = "b826a45082ef68340325c0855f3d2e5d5a4d0f77d28ba3b871791d6f14a97aeb";
-        };
-        archs = [
-          "noarch"
-          "i386"
-        ];
-        packages = commonCentOSPackages ++ [ "procps" ];
-      };
-
-    centos6x86_64 =
-      let
-        version = "6.9";
-      in
-      rec {
-        name = "centos-${version}-x86_64";
-        fullName = "CentOS ${version} (x86_64)";
-        urlPrefix = "mirror://centos/${version}/os/x86_64";
-        packagesList = fetchurl rec {
-          url = "${urlPrefix}/repodata/${sha256}-primary.xml.gz";
-          sha256 = "ed2b2d4ac98d774d4cd3e91467e1532f7e8b0275cfc91a0d214b532dcaf1e979";
-        };
-        archs = [
-          "noarch"
-          "x86_64"
-        ];
-        packages = commonCentOSPackages ++ [ "procps" ];
-      };
-
-    # Note: no i386 release for 7.x
-    centos7x86_64 =
-      let
-        version = "7.4.1708";
-      in
-      rec {
-        name = "centos-${version}-x86_64";
-        fullName = "CentOS ${version} (x86_64)";
-        urlPrefix = "mirror://centos/${version}/os/x86_64";
-        packagesList = fetchurl rec {
-          url = "${urlPrefix}/repodata/${sha256}-primary.xml.gz";
-          sha256 = "b686d3a0f337323e656d9387b9a76ce6808b26255fc3a138b1a87d3b1cb95ed5";
-        };
-        archs = [
-          "noarch"
-          "x86_64"
-        ];
-        packages = commonCentOSPackages ++ [ "procps-ng" ];
-      };
-  };
+  rpmDistros = { };
 
   # The set of supported Dpkg-based distributions.
 
   debDistros = {
-    ubuntu1404i386 = {
-      name = "ubuntu-14.04-trusty-i386";
-      fullName = "Ubuntu 14.04 Trusty (i386)";
-      packagesLists = [
-        (fetchurl {
-          url = "mirror://ubuntu/dists/trusty/main/binary-i386/Packages.bz2";
-          sha256 = "1d5y3v3v079gdq45hc07ja0bjlmzqfwdwwlq0brwxi8m75k3iz7x";
-        })
-        (fetchurl {
-          url = "mirror://ubuntu/dists/trusty/universe/binary-i386/Packages.bz2";
-          sha256 = "03x9w92by320rfklrqhcl3qpwmnxds9c8ijl5zhcb21d6dcz5z1a";
-        })
-      ];
-      urlPrefix = "mirror://ubuntu";
-      packages = commonDebPackages ++ [
-        "diffutils"
-        "libc-bin"
-      ];
-    };
-
-    ubuntu1404x86_64 = {
-      name = "ubuntu-14.04-trusty-amd64";
-      fullName = "Ubuntu 14.04 Trusty (amd64)";
-      packagesLists = [
-        (fetchurl {
-          url = "mirror://ubuntu/dists/trusty/main/binary-amd64/Packages.bz2";
-          sha256 = "1hhzbyqfr5i0swahwnl5gfp5l9p9hspywb1vpihr3b74p1z935bh";
-        })
-        (fetchurl {
-          url = "mirror://ubuntu/dists/trusty/universe/binary-amd64/Packages.bz2";
-          sha256 = "04560ba8s4z4v5iawknagrkn9q1nzvpn081ycmqvhh73p3p3g1jm";
-        })
-      ];
-      urlPrefix = "mirror://ubuntu";
-      packages = commonDebPackages ++ [
-        "diffutils"
-        "libc-bin"
-      ];
-    };
-
-    ubuntu1604i386 = {
-      name = "ubuntu-16.04-xenial-i386";
-      fullName = "Ubuntu 16.04 Xenial (i386)";
-      packagesLists = [
-        (fetchurl {
-          url = "mirror://ubuntu/dists/xenial/main/binary-i386/Packages.xz";
-          sha256 = "13r75sp4slqy8w32y5dnr7pp7p3cfvavyr1g7gwnlkyrq4zx4ahy";
-        })
-        (fetchurl {
-          url = "mirror://ubuntu/dists/xenial/universe/binary-i386/Packages.xz";
-          sha256 = "14fid1rqm3sc0wlygcvn0yx5aljf51c2jpd4x0zxij4019316hsh";
-        })
-      ];
-      urlPrefix = "mirror://ubuntu";
-      packages = commonDebPackages ++ [
-        "diffutils"
-        "libc-bin"
-      ];
-    };
-
-    ubuntu1604x86_64 = {
-      name = "ubuntu-16.04-xenial-amd64";
-      fullName = "Ubuntu 16.04 Xenial (amd64)";
-      packagesLists = [
-        (fetchurl {
-          url = "mirror://ubuntu/dists/xenial/main/binary-amd64/Packages.xz";
-          sha256 = "110qnkhjkkwm316fbig3aivm2595ydz6zskc4ld5cr8ngcrqm1bn";
-        })
-        (fetchurl {
-          url = "mirror://ubuntu/dists/xenial/universe/binary-amd64/Packages.xz";
-          sha256 = "0mm7gj491yi6q4v0n4qkbsm94s59bvqir6fk60j73w7y4la8rg68";
-        })
-      ];
-      urlPrefix = "mirror://ubuntu";
-      packages = commonDebPackages ++ [
-        "diffutils"
-        "libc-bin"
-      ];
-    };
-
-    ubuntu1804i386 = {
-      name = "ubuntu-18.04-bionic-i386";
-      fullName = "Ubuntu 18.04 Bionic (i386)";
-      packagesLists = [
-        (fetchurl {
-          url = "mirror://ubuntu/dists/bionic/main/binary-i386/Packages.xz";
-          sha256 = "0f0v4131kwf7m7f8j3288rlqdxk1k3vqy74b7fcfd6jz9j8d840i";
-        })
-        (fetchurl {
-          url = "mirror://ubuntu/dists/bionic/universe/binary-i386/Packages.xz";
-          sha256 = "1v75c0dqr0wp0dqd4hnci92qqs4hll8frqdbpswadgxm5chn91bw";
-        })
-      ];
-      urlPrefix = "mirror://ubuntu";
-      packages = commonDebPackages ++ [
-        "diffutils"
-        "libc-bin"
-      ];
-    };
-
-    ubuntu1804x86_64 = {
-      name = "ubuntu-18.04-bionic-amd64";
-      fullName = "Ubuntu 18.04 Bionic (amd64)";
-      packagesLists = [
-        (fetchurl {
-          url = "mirror://ubuntu/dists/bionic/main/binary-amd64/Packages.xz";
-          sha256 = "1ls81bjyvmfz6i919kszl7xks1ibrh1xqhsk6698ackndkm0wp39";
-        })
-        (fetchurl {
-          url = "mirror://ubuntu/dists/bionic/universe/binary-amd64/Packages.xz";
-          sha256 = "1832nqpn4ap95b3sj870xqayrza9in4kih9jkmjax27pq6x15v1r";
-        })
-      ];
-      urlPrefix = "mirror://ubuntu";
-      packages = commonDebPackages ++ [
-        "diffutils"
-        "libc-bin"
-      ];
-    };
-
-    ubuntu2004i386 = {
-      name = "ubuntu-20.04-focal-i386";
-      fullName = "Ubuntu 20.04 Focal (i386)";
-      packagesLists = [
-        (fetchurl {
-          url = "mirror://ubuntu/dists/focal/main/binary-i386/Packages.xz";
-          sha256 = "sha256-7RAYURoN3RKYQAHpwBS9TIV6vCmpURpphyMJQmV4wLc=";
-        })
-        (fetchurl {
-          url = "mirror://ubuntu/dists/focal/universe/binary-i386/Packages.xz";
-          sha256 = "sha256-oA551xVE80volUPgkMyvzpQ1d+GhuZd4DAe7dXZnULM=";
-        })
-      ];
-      urlPrefix = "mirror://ubuntu";
-      packages = commonDebPackages ++ [
-        "diffutils"
-        "libc-bin"
-      ];
-    };
-
-    ubuntu2004x86_64 = {
-      name = "ubuntu-20.04-focal-amd64";
-      fullName = "Ubuntu 20.04 Focal (amd64)";
-      packagesLists = [
-        (fetchurl {
-          url = "mirror://ubuntu/dists/focal/main/binary-amd64/Packages.xz";
-          sha256 = "sha256-d1eSH/j+7Zw5NKDJk21EG6SiOL7j6myMHfXLzUP8mGE=";
-        })
-        (fetchurl {
-          url = "mirror://ubuntu/dists/focal/universe/binary-amd64/Packages.xz";
-          sha256 = "sha256-RqdG2seJvZU3rKVNsWgLnf9RwkgVMRE1A4IZnX2WudE=";
-        })
-      ];
-      urlPrefix = "mirror://ubuntu";
-      packages = commonDebPackages ++ [
-        "diffutils"
-        "libc-bin"
-      ];
-    };
-
     ubuntu2204i386 = {
       name = "ubuntu-22.04-jammy-i386";
       fullName = "Ubuntu 22.04 Jammy (i386)";
@@ -1315,28 +1049,6 @@ rec {
       ];
     };
 
-    debian10i386 = {
-      name = "debian-10.13-buster-i386";
-      fullName = "Debian 10.13 Buster (i386)";
-      packagesList = fetchurl {
-        url = "https://snapshot.debian.org/archive/debian/20221126T084953Z/dists/buster/main/binary-i386/Packages.xz";
-        hash = "sha256-n9JquhtZgxw3qr9BX0MQoY3ZTIHN0dit+iru3DC31UY=";
-      };
-      urlPrefix = "https://snapshot.debian.org/archive/debian/20221126T084953Z";
-      packages = commonDebianPackages;
-    };
-
-    debian10x86_64 = {
-      name = "debian-10.13-buster-amd64";
-      fullName = "Debian 10.13 Buster (amd64)";
-      packagesList = fetchurl {
-        url = "https://snapshot.debian.org/archive/debian/20221126T084953Z/dists/buster/main/binary-amd64/Packages.xz";
-        hash = "sha256-YukIIB3u87jgp9oudwklsxyKVKjSL618wFgDSXiFmjU=";
-      };
-      urlPrefix = "https://snapshot.debian.org/archive/debian/20221126T084953Z";
-      packages = commonDebianPackages;
-    };
-
     debian11i386 = {
       name = "debian-11.8-bullseye-i386";
       fullName = "Debian 11.8 Bullseye (i386)";