Merge remote-tracking branch 'github-enterprise/master'

contrib/linux/CMakeLists.txt

@@ -8,6 +8,7 @@ if(CMAKE_SYSTEM_NAME MATCHES "Linux")
   set(CPACK_DEBIAN_PACKAGE_CONTROL_STRICT_PERMISSION TRUE)
   set(CPACK_DEBIAN_PACKAGE_CONTROL_EXTRA
     "${CMAKE_CURRENT_SOURCE_DIR}/postrm"
+    "${CMAKE_CURRENT_SOURCE_DIR}/preinst"
     "${CMAKE_CURRENT_SOURCE_DIR}/postinst"
     "${CMAKE_CURRENT_SOURCE_DIR}/conffiles"
     "${CMAKE_CURRENT_SOURCE_DIR}/templates"

contrib/linux/preinst

@@ -0,0 +1,10 @@
+#!/bin/sh
+set -e
+. /etc/lsb-release
+if ! [ "x$DISTRIB_ID" = "xUbuntu" ] || ! [ "x$DISTRIB_RELEASE" = "x20.04" ]
+then
+  echo "\n\nYou can only use this installer on Ubuntu 20.04\n\n"
+  exit 1
+fi
+
+exit 0

doc/installation-guide/linux-binaries.rst

@@ -14,7 +14,7 @@ Supported distributions
 
 Binary installation packages are available for:
 
-* Ubuntu 20 LTS
+* Ubuntu **20** LTS
 * Red Hat Enterprise Linux 8 (Enterprise Edition only, deprecated in favor of containers)
 * Rocky Linux 8 (Enterprise Edition only, deprecated in favor of containers)
 * Suse 15 (Enterprise Edition only, deprecated in favor of containers)