Refactor installation script and update copyright

Updated copyright information and adjusted package installation commands. Enhanced IPv6 disabling logic and improved container customization process.

Author: MickLesk

misc/install.func

@@ -1,7 +1,8 @@
-# Copyright (c) 2021-2025 community-scripts ORG
+# Copyright (c) 2021-2025 tteck
 # Author: tteck (tteckster)
-# Co-Author: MickLesk | michelroegl-brunner
-# License: MIT | https://github.com/community-scripts/ProxmoxVED/raw/main/LICENSE
+# Co-Author: MickLesk
+# License: MIT
+# https://github.com/community-scripts/ProxmoxVE/raw/main/LICENSE
 
 # ==============================================================================
 # INSTALL.FUNC - CONTAINER INSTALLATION & SETUP
@@ -29,8 +30,8 @@
 
 if ! command -v curl >/dev/null 2>&1; then
   printf "\r\e[2K%b" '\033[93m Setup Source \033[m' >&2
-  apt-get update >/dev/null 2>&1
-  apt-get install -y curl >/dev/null 2>&1
+  apt update >/dev/null 2>&1
+  apt install -y curl >/dev/null 2>&1
 fi
 source <(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/misc/core.func)
 source <(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/misc/error_handler.func)
@@ -51,9 +52,17 @@ catch_errors
 verb_ip6() {
   set_std_mode # Set STD mode based on VERBOSE
 
-  if [ "$DISABLEIPV6" == "yes" ]; then
-    echo "net.ipv6.conf.all.disable_ipv6 = 1" >>/etc/sysctl.conf
-    $STD sysctl -p
+  if [ "$IPV6_METHOD" == "disable" ]; then
+    msg_info "Disabling IPv6 (this may affect some services)"
+    mkdir -p /etc/sysctl.d
+    $STD tee /etc/sysctl.d/99-disable-ipv6.conf >/dev/null <<EOF
+# Disable IPv6 (set by community-scripts)
+net.ipv6.conf.all.disable_ipv6 = 1
+net.ipv6.conf.default.disable_ipv6 = 1
+net.ipv6.conf.lo.disable_ipv6 = 1
+EOF
+    $STD sysctl -p /etc/sysctl.d/99-disable-ipv6.conf
+    msg_ok "Disabled IPv6"
   fi
 }
 
@@ -173,8 +182,8 @@ network_check() {
 update_os() {
   msg_info "Updating Container OS"
   if [[ "$CACHER" == "yes" ]]; then
-    echo "Acquire::http::Proxy-Auto-Detect \"/usr/local/bin/apt-proxy-detect.sh\";" >/etc/apt/apt.conf.d/00aptproxy
-    cat <<'EOF' >/usr/local/bin/apt-proxy-detect.sh
+    echo 'Acquire::http::Proxy-Auto-Detect "/usr/local/bin/apt-proxy-detect.sh";' >/etc/apt/apt.conf.d/00aptproxy
+    cat <<EOF >/usr/local/bin/apt-proxy-detect.sh
 #!/bin/bash
 if nc -w1 -z "${CACHER_IP}" 3142; then
   echo -n "http://${CACHER_IP}:3142"
@@ -188,6 +197,7 @@ EOF
   $STD apt-get -o Dpkg::Options::="--force-confold" -y dist-upgrade
   rm -rf /usr/lib/python3.*/EXTERNALLY-MANAGED
   msg_ok "Updated Container OS"
+
   source <(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/misc/tools.func)
 }
 
@@ -210,8 +220,10 @@ EOF
 # - Configures TERM environment variable for better terminal support
 # ------------------------------------------------------------------------------
 motd_ssh() {
+  # Set terminal to 256-color mode
   grep -qxF "export TERM='xterm-256color'" /root/.bashrc || echo "export TERM='xterm-256color'" >>/root/.bashrc
 
+  # Get OS information (Debian / Ubuntu)
   if [ -f "/etc/os-release" ]; then
     OS_NAME=$(grep ^NAME /etc/os-release | cut -d= -f2 | tr -d '"')
     OS_VERSION=$(grep ^VERSION_ID /etc/os-release | cut -d= -f2 | tr -d '"')
@@ -222,12 +234,14 @@ motd_ssh() {
 
   PROFILE_FILE="/etc/profile.d/00_lxc-details.sh"
   echo "echo -e \"\"" >"$PROFILE_FILE"
-  echo -e "echo -e \"${YW} OS: ${GN}${OS_NAME} - Version: ${OS_VERSION}${CL}\"" >>"$PROFILE_FILE"
-  echo -e "echo -e \"${YW} Hostname: ${GN}\$(hostname)${CL}\"" >>"$PROFILE_FILE"
-  echo -e "echo -e \"${YW} IP Address: ${GN}\$(hostname -I | awk '{print \$1}')${CL}\"" >>"$PROFILE_FILE"
-  echo -e "echo -e \"${YW} Repository: ${GN}https://github.com/community-scripts/ProxmoxVE${CL}\"" >>"$PROFILE_FILE"
+  echo -e "echo -e \"${BOLD}${APPLICATION} LXC Container${CL}"\" >>"$PROFILE_FILE"
+  echo -e "echo -e \"${TAB}${GATEWAY}${YW} Provided by: ${GN}community-scripts ORG ${YW}| GitHub: ${GN}https://github.com/community-scripts/ProxmoxVE${CL}\"" >>"$PROFILE_FILE"
   echo "echo \"\"" >>"$PROFILE_FILE"
+  echo -e "echo -e \"${TAB}${OS}${YW} OS: ${GN}${OS_NAME} - Version: ${OS_VERSION}${CL}\"" >>"$PROFILE_FILE"
+  echo -e "echo -e \"${TAB}${HOSTNAME}${YW} Hostname: ${GN}\$(hostname)${CL}\"" >>"$PROFILE_FILE"
+  echo -e "echo -e \"${TAB}${INFO}${YW} IP Address: ${GN}\$(hostname -I | awk '{print \$1}')${CL}\"" >>"$PROFILE_FILE"
 
+  # Disable default MOTD scripts
   chmod -x /etc/update-motd.d/*
 
   if [[ "${SSH_ROOT}" == "yes" ]]; then
@@ -254,17 +268,18 @@ customize() {
     msg_info "Customizing Container"
     GETTY_OVERRIDE="/etc/systemd/system/[email protected]/override.conf"
     mkdir -p $(dirname $GETTY_OVERRIDE)
-    cat <<'EOF' >$GETTY_OVERRIDE
-[Service]
-ExecStart=
-ExecStart=-/sbin/agetty --autologin root --noclear --keep-baud tty%I 115200,38400,9600 $TERM
+    cat <<EOF >$GETTY_OVERRIDE
+  [Service]
+  ExecStart=
+  ExecStart=-/sbin/agetty --autologin root --noclear --keep-baud tty%I 115200,38400,9600 \$TERM
 EOF
     systemctl daemon-reload
     systemctl restart $(basename $(dirname $GETTY_OVERRIDE) | sed 's/\.d//')
     msg_ok "Customized Container"
   fi
   echo "bash -c \"\$(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/ct/${app}.sh)\"" >/usr/bin/update
   chmod +x /usr/bin/update
+
   if [[ -n "${SSH_AUTHORIZED_KEY}" ]]; then
     mkdir -p /root/.ssh
     echo "${SSH_AUTHORIZED_KEY}" >/root/.ssh/authorized_keys