Warn if kernel.unprivileged_userns_clone not set

1 files changed, 19 insertions, 0 deletions

diff --git a/install.sh b/install.sh
new file mode 100644
index 000000000000..a0ac241d9fbf
--- /dev/null
+++ b/install.sh
@@ -0,0 +1,19 @@
+_pkgname="skypeforlinux"
+_userns="kernel.unprivileged_userns_clone"
+
+post_install() {
+    userns="$(sysctl -n $_userns 2>/dev/null)"
+    if [[ $? -ne 0 || $userns -ne 1 ]]; then
+	echo -ne "\e[34;1m"
+	echo ===
+	echo === !!! WARNING !!!
+	echo ===
+	echo === $_userns is not set on this system.
+	echo === You will need to set it manually so $_pkgname can start.
+	echo ===
+    fi
+}
+
+post_upgrade() {
+    post_install
+}