diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 1032324..7beaa2c 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -63,6 +63,14 @@ jobs:
             image: fedora:35
             typ: rhel
             allow-failure: false
+          -
+            image: ubuntu:20.04
+            typ: debian
+            allow-failure: false
+          -
+            image: ubuntu:21.10
+            typ: debian
+            allow-failure: false
     steps:
       -
         name: Checkout
diff --git a/base/test-apt.bats b/base/test-apt.bats
index c2d0318..997a9b3 100755
--- a/base/test-apt.bats
+++ b/base/test-apt.bats
@@ -9,15 +9,15 @@ load 'assert'
 }
 
 @test "native" {
-  run xx-apt info file
+  run xx-apt show file
   assert_success
   assert_line "Package: file"
 
-  run xx-apt info libc6-dev
+  run xx-apt show libc6-dev
   assert_success
   assert_line "Package: libc6-dev"
 
-  run xx-apt info gcc
+  run xx-apt show gcc
   assert_success
   assert_line "Package: gcc"
 }
@@ -26,21 +26,21 @@ load 'assert'
   export TARGETARCH=amd64
   if ! xx-info is-cross; then skip; fi
 
-  run xx-apt info file
+  run xx-apt show file
   assert_success
   assert_line "Package: file:amd64"
 
-  run xx-apt info libc6-dev
+  run xx-apt show libc6-dev
   assert_success
   assert_line "Package: libc6-dev:amd64"
 
   export XX_APT_PREFER_CROSS=1
-  run xx-apt info libc6-dev
+  run xx-apt show libc6-dev
   assert_success
   assert_line "Package: libc6-dev-amd64-cross"
   unset XX_APT_PREFER_CROSS
 
-  run xx-apt info gcc
+  run xx-apt show gcc
   assert_success
   assert_line "Package: gcc-x86-64-linux-gnu"
 }
@@ -49,21 +49,21 @@ load 'assert'
   export TARGETARCH=arm64
   if ! xx-info is-cross; then return; fi
 
-  run xx-apt info file
+  run xx-apt show file
   assert_success
   assert_line "Package: file:arm64"
 
-  run xx-apt info libc6-dev
+  run xx-apt show libc6-dev
   assert_success
   assert_line "Package: libc6-dev:arm64"
 
   export XX_APT_PREFER_CROSS=1
-  run xx-apt info libc6-dev
+  run xx-apt show libc6-dev
   assert_success
   assert_line "Package: libc6-dev-arm64-cross"
   unset XX_APT_PREFER_CROSS
 
-  run xx-apt info gcc
+  run xx-apt show gcc
   assert_success
   assert_line "Package: gcc-aarch64-linux-gnu"
 }
@@ -72,21 +72,21 @@ load 'assert'
   export TARGETARCH=arm
   if ! xx-info is-cross; then return; fi
 
-  run xx-apt info file
+  run xx-apt show file
   assert_success
   assert_line "Package: file:armhf"
 
-  run xx-apt info libc6-dev
+  run xx-apt show libc6-dev
   assert_success
   assert_line "Package: libc6-dev:armhf"
 
   export XX_APT_PREFER_CROSS=1
-  run xx-apt info libc6-dev
+  run xx-apt show libc6-dev
   assert_success
   assert_line "Package: libc6-dev-armhf-cross"
   unset XX_APT_PREFER_CROSS
 
-  run xx-apt info gcc
+  run xx-apt show gcc
   assert_success
   assert_line "Package: gcc-arm-linux-gnueabihf"
 }
@@ -95,22 +95,23 @@ load 'assert'
   export TARGETARCH=arm
   export TARGETVARIANT=v6
   if ! xx-info is-cross; then return; fi
+  if [ "$(xx-info vendor)" = "ubuntu" ]; then skip; fi
 
-  run xx-apt info file
+  run xx-apt show file
   assert_success
   assert_line "Package: file:armel"
 
-  run xx-apt info libc6-dev
+  run xx-apt show libc6-dev
   assert_success
   assert_line "Package: libc6-dev:armel"
 
   export XX_APT_PREFER_CROSS=1
-  run xx-apt info libc6-dev
+  run xx-apt show libc6-dev
   assert_success
   assert_line "Package: libc6-dev-armel-cross"
   unset XX_APT_PREFER_CROSS
 
-  run xx-apt info gcc
+  run xx-apt show gcc
   assert_success
   assert_line "Package: gcc-arm-linux-gnueabi"
   unset TARGETVARIANT
@@ -120,16 +121,16 @@ load 'assert'
   export TARGETARCH=s390x
   if ! xx-info is-cross; then return; fi
 
-  run xx-apt info file
+  run xx-apt show file
   assert_success
   assert_line "Package: file:s390x"
 
-  run xx-apt info libc6-dev
+  run xx-apt show libc6-dev
   assert_success
   assert_line "Package: libc6-dev:s390x"
 
   export XX_APT_PREFER_CROSS=1
-  run xx-apt info libc6-dev
+  run xx-apt show libc6-dev
   assert_success
   assert_line "Package: libc6-dev-s390x-cross"
   unset XX_APT_PREFER_CROSS
@@ -139,7 +140,7 @@ load 'assert'
     return
   fi
 
-  run xx-apt info gcc
+  run xx-apt show gcc
   assert_success
   assert_line "Package: gcc-s390x-linux-gnu"
 }
@@ -148,16 +149,16 @@ load 'assert'
   export TARGETARCH=ppc64le
   if ! xx-info is-cross; then return; fi
 
-  run xx-apt info file
+  run xx-apt show file
   assert_success
   assert_line "Package: file:ppc64el"
 
-  run xx-apt info libc6-dev
+  run xx-apt show libc6-dev
   assert_success
   assert_line "Package: libc6-dev:ppc64el"
 
   export XX_APT_PREFER_CROSS=1
-  run xx-apt info libc6-dev
+  run xx-apt show libc6-dev
   assert_success
   assert_line "Package: libc6-dev-ppc64el-cross"
   unset XX_APT_PREFER_CROSS
@@ -167,7 +168,7 @@ load 'assert'
     return
   fi
 
-  run xx-apt info gcc
+  run xx-apt show gcc
   assert_success
   assert_line "Package: gcc-powerpc64le-linux-gnu"
 }
@@ -176,21 +177,21 @@ load 'assert'
   export TARGETARCH=386
   if ! xx-info is-cross; then return; fi
 
-  run xx-apt info file
+  run xx-apt show file
   assert_success
   assert_line "Package: file:i386"
 
-  run xx-apt info libc6-dev
+  run xx-apt show libc6-dev
   assert_success
   assert_line "Package: libc6-dev:i386"
 
   export XX_APT_PREFER_CROSS=1
-  run xx-apt info libc6-dev
+  run xx-apt show libc6-dev
   assert_success
   assert_line "Package: libc6-dev-i386-cross"
   unset XX_APT_PREFER_CROSS
 
-  run xx-apt info gcc
+  run xx-apt show gcc
   assert_success
   assert_line "Package: gcc-i686-linux-gnu"
 }
diff --git a/base/test-clang.bats b/base/test-clang.bats
index 8e5a61e..fbef8fb 100755
--- a/base/test-clang.bats
+++ b/base/test-clang.bats
@@ -211,6 +211,7 @@ testBuildHello() {
 }
 
 @test "armv6-c-lld" {
+  if [ "$(xx-info vendor)" = "ubuntu" ]; then skip; fi
   export TARGETARCH=arm
   export TARGETVARIANT=v6
   testHelloCLLD
@@ -265,6 +266,7 @@ testBuildHello() {
 }
 
 @test "armv6-c++-lld" {
+  if [ "$(xx-info vendor)" = "ubuntu" ]; then skip; fi
   export TARGETARCH=arm
   export TARGETVARIANT=v6
   testHelloCPPLLD
diff --git a/base/test-go.bats b/base/test-go.bats
index 751edb8..a57d57e 100755
--- a/base/test-go.bats
+++ b/base/test-go.bats
@@ -149,6 +149,9 @@ testHelloGO() {
 }
 
 @test "riscv64-hellogo" {
+  if ! supportRiscVGo; then
+    skip "RISC-V GO not supported"
+  fi
   export TARGETARCH=riscv64
   testHelloGO
 }
diff --git a/base/test-info-debian.bats b/base/test-info-debian.bats
index 6314653..eb05d13 100755
--- a/base/test-info-debian.bats
+++ b/base/test-info-debian.bats
@@ -2,8 +2,14 @@
 
 load "assert"
 
+vendor="debian"
+
+if grep "Ubuntu" /etc/issue 2>/dev/null >/dev/null; then
+  vendor="ubuntu"
+fi
+
 @test "vendor" {
-  assert_equal "debian" "$(xx-info vendor)"
+  assert_equal "$vendor" "$(xx-info vendor)"
 }
 
 @test "libc" {
diff --git a/base/test-windres.bats b/base/test-windres.bats
index b06bfc7..f9e2341 100755
--- a/base/test-windres.bats
+++ b/base/test-windres.bats
@@ -12,6 +12,9 @@ load 'test_helper'
 }
 
 @test "basic" {
+  if ! supportRC; then
+    skip "llvm-rc not installed" # ubuntu 18.04
+  fi
   export XX_WINDRES_DRYRUN=1
   export TARGETPLATFORM=windows/arm
   export XX_TMP_FILE_FIXED=/tmp/foo
diff --git a/base/test_helper.bash b/base/test_helper.bash
index c87498d..f50f8b5 100644
--- a/base/test_helper.bash
+++ b/base/test_helper.bash
@@ -78,9 +78,17 @@ supportRiscV() {
   return 0
 }
 
+supportRiscVGo() {
+  go version | grep -E "1.14|1.15|1.16|1.17|1.18|1.19" >/dev/null 2>&1
+}
+
 supportRiscVCGo() {
   if ! supportRiscV; then
     return 1
   fi
-  go version | egrep "1.16|1.17|1.18" >/dev/null 2>&1
+  go version | egrep -E "1.16|1.17|1.18|1.19" >/dev/null 2>&1
+}
+
+supportRC() {
+  command -v llvm-rc >/dev/null 2>&1
 }
diff --git a/base/xx-apt b/base/xx-apt
index f2fcc36..a4c2871 100755
--- a/base/xx-apt
+++ b/base/xx-apt
@@ -49,6 +49,50 @@ else
   arg0="apt"
 fi
 
+fixubuntusources() {
+  # fix ubuntu sources
+  if grep "# generated by xx-apt" /etc/apt/sources.list >/dev/null 2>/dev/null; then
+    return
+  fi
+
+  group1="amd64,i386"
+  group2="arm64,armhf,ppc64el,s390x"
+
+  nativearch="$(TARGETPLATFORM="" TARGETPAIR="" TARGETARCH="" TARGETOS="" xx-info arch)"
+
+  while IFS="" read -r p || [ -n "$p" ]; do
+
+    if echo "$p" | grep -E "^(deb|deb-src) "; then
+      case "${nativearch}" in
+        amd64 | 386)
+          echo "$p" | sed "s/http:\/\/archive.ubuntu.com\/ubuntu\//[arch=$group2] http:\/\/ports.ubuntu.com\/ubuntu-ports\//" | sed "s/http:\/\/security.ubuntu.com\/ubuntu\//[arch=$group2] http:\/\/ports.ubuntu.com\/ubuntu-ports\//" >>/tmp/sources.xx-cross
+          echo "$p" | sed "s/ http/ [arch=$group1] http/" >>/tmp/sources.xx
+          ;;
+        *)
+          if echo "$p" | grep -E "-security "; then
+            echo "$p" | sed "s/http:\/\/ports.ubuntu.com\/ubuntu-ports\//[arch=$group1] http:\/\/security.ubuntu.com\/ubuntu\//" >>/tmp/sources.xx-cross
+          else
+            echo "$p" | sed "s/http:\/\/ports.ubuntu.com\/ubuntu-ports\//[arch=$group1] http:\/\/archive.ubuntu.com\/ubuntu\//" >>/tmp/sources.xx-cross
+          fi
+          echo "$p" | sed "s/ http/ [arch=$group2] http/" >>/tmp/sources.xx
+          ;;
+      esac
+    else
+      echo "$p" >>/tmp/sources.xx
+    fi
+
+  done \
+    < \
+    \
+    /etc/apt/sources.list
+
+  cat /tmp/sources.xx >/etc/apt/sources.list
+  echo "# generated by xx-apt" >>/etc/apt/sources.list
+  cat /tmp/sources.xx-cross >>/etc/apt/sources.list
+
+  rm /tmp/sources.xx /tmp/sources.xx-cross
+}
+
 packages=
 parsed=
 n=$#
@@ -84,13 +128,24 @@ if [ -z "${parsed}" ]; then
   exec apt "$@"
 fi
 
-if [ "$TARGETARCH" = "riscv64" ]; then
+nocross=
+if ! xx-info is-cross; then
+  nocross=1
+fi
+
+if [ "$TARGETARCH" = "riscv64" ] && [ "$(xx-info vendor)" = "debian" ]; then
   apt-get update
   apt-get install -y debian-ports-archive-keyring
   echo "deb [ arch=riscv64 ] http://ftp.ports.debian.org/debian-ports sid main" >>/etc/apt/sources.list.d/riscv64-sid.list
 fi
 
 if ! dpkg --print-foreign-architectures | grep "$XX_PKG_ARCH" >/dev/null; then
+  if [ "$(xx-info vendor)" = "ubuntu" ] && [ -z "$nocross" ]; then
+    # ubuntu uses different repositories for amd64/386 and rest of the architectures
+    # so we need to fix the sources.list and add new ones
+    fixubuntusources
+  fi
+
   dpkg --add-architecture "$XX_PKG_ARCH"
   apt-get update
 fi
@@ -100,11 +155,6 @@ if [ "$suffix" = "x86_64-linux-gnu" ]; then
   suffix="x86-64-linux-gnu"
 fi
 
-nocross=
-if ! xx-info is-cross; then
-  nocross=1
-fi
-
 packages2=
 for p in ${packages}; do
   if [ "${p}" = "xx-c-essentials" ]; then
diff --git a/base/xx-info b/base/xx-info
index bd742fe..e067e91 100755
--- a/base/xx-info
+++ b/base/xx-info
@@ -110,7 +110,7 @@ fi
 
 vendor=""
 
-if [ "$XX_VENDOR" != "unknown" ] && [ "$XX_VENDOR" != "debian" ] && [ "$XX_VENDOR" != "rhel" ] && [ "$XX_VENDOR" != "fedora" ] && [ "$XX_VENDOR" != "centos" ] && [ "$XX_VENDOR" != "rocky" ]; then
+if [ "$XX_VENDOR" != "unknown" ] && [ "$XX_VENDOR" != "debian" ] && [ "$XX_VENDOR" != "rhel" ] && [ "$XX_VENDOR" != "fedora" ] && [ "$XX_VENDOR" != "centos" ] && [ "$XX_VENDOR" != "rocky" ] && [ "$XX_VENDOR" != "ubuntu" ]; then
   vendor="-${XX_VENDOR}"
 fi
 
@@ -277,7 +277,7 @@ case "$TARGETARCH" in
 esac
 
 XX_PKG_ARCH=$TARGETARCH
-if [ "$XX_VENDOR" = "debian" ]; then
+if [ "$XX_VENDOR" = "debian" ] || [ "$XX_VENDOR" = "ubuntu" ]; then
   XX_PKG_ARCH=${XX_DEBIAN_ARCH}
 elif [ "$XX_VENDOR" = "alpine" ]; then
   XX_PKG_ARCH=${XX_ALPINE_ARCH}