diff --git a/install/almalinux-install.sh b/install/almalinux-install.sh
index 0547e7dd7..af557ad4b 100644
--- a/install/almalinux-install.sh
+++ b/install/almalinux-install.sh
@@ -15,3 +15,4 @@ update_os
 
 motd_ssh
 customize
+cleanup_lxc
diff --git a/install/centos-install.sh b/install/centos-install.sh
index 0caa30f9a..ed5d24f2e 100644
--- a/install/centos-install.sh
+++ b/install/centos-install.sh
@@ -15,3 +15,4 @@ update_os
 
 motd_ssh
 customize
+cleanup_lxc
diff --git a/install/devuan-install.sh b/install/devuan-install.sh
index 768e30cb3..366f394fd 100644
--- a/install/devuan-install.sh
+++ b/install/devuan-install.sh
@@ -15,3 +15,4 @@ update_os
 
 motd_ssh
 customize
+cleanup_lxc
diff --git a/install/fedora-install.sh b/install/fedora-install.sh
index a705a6296..d59592745 100644
--- a/install/fedora-install.sh
+++ b/install/fedora-install.sh
@@ -15,3 +15,4 @@ update_os
 
 motd_ssh
 customize
+cleanup_lxc
diff --git a/install/gentoo-install.sh b/install/gentoo-install.sh
index 6a3a0380b..025226dfd 100644
--- a/install/gentoo-install.sh
+++ b/install/gentoo-install.sh
@@ -15,3 +15,4 @@ update_os
 
 motd_ssh
 customize
+cleanup_lxc
diff --git a/install/openeuler-install.sh b/install/openeuler-install.sh
index 257481c8f..2335cbab5 100644
--- a/install/openeuler-install.sh
+++ b/install/openeuler-install.sh
@@ -15,3 +15,4 @@ update_os
 
 motd_ssh
 customize
+cleanup_lxc
diff --git a/install/opensuse-install.sh b/install/opensuse-install.sh
index 2401d9d05..a144ca238 100644
--- a/install/opensuse-install.sh
+++ b/install/opensuse-install.sh
@@ -15,3 +15,4 @@ update_os
 
 motd_ssh
 customize
+cleanup_lxc
diff --git a/install/rockylinux-install.sh b/install/rockylinux-install.sh
index 83f45a4b9..4922bd520 100644
--- a/install/rockylinux-install.sh
+++ b/install/rockylinux-install.sh
@@ -15,3 +15,4 @@ update_os
 
 motd_ssh
 customize
+cleanup_lxc
diff --git a/misc/build.func b/misc/build.func
index b98629ad7..5c4cb6327 100644
--- a/misc/build.func
+++ b/misc/build.func
@@ -2419,11 +2419,9 @@ build_container() {
 
   TEMP_DIR=$(mktemp -d)
   pushd "$TEMP_DIR" >/dev/null
-  if [ "$var_os" == "alpine" ]; then
-    export FUNCTIONS_FILE_PATH="$(curl -fsSL https://git.community-scripts.org/community-scripts/ProxmoxVED/raw/branch/main/misc/alpine-install.func)"
-  else
-    export FUNCTIONS_FILE_PATH="$(curl -fsSL https://git.community-scripts.org/community-scripts/ProxmoxVED/raw/branch/main/misc/install.func)"
-  fi
+
+  # Unified install.func automatically detects OS type (debian, alpine, fedora, etc.)
+  export FUNCTIONS_FILE_PATH="$(curl -fsSL https://git.community-scripts.org/community-scripts/ProxmoxVED/raw/branch/main/misc/install.func)"
 
   # Core exports for install.func
   export DIAGNOSTICS="$DIAGNOSTICS"
@@ -2826,39 +2824,78 @@ EOF
   #   install_gpu_userland "NVIDIA"
   # fi
 
-  # Continue with standard container setup
-  if [ "$var_os" == "alpine" ]; then
-    sleep 3
+  # Continue with standard container setup - install core dependencies based on OS
+  sleep 3
+
+  case "$var_os" in
+  alpine)
     pct exec "$CTID" -- /bin/sh -c 'cat <<EOF >/etc/apk/repositories
 http://dl-cdn.alpinelinux.org/alpine/latest-stable/main
 http://dl-cdn.alpinelinux.org/alpine/latest-stable/community
 EOF'
     pct exec "$CTID" -- ash -c "apk add bash newt curl openssh nano mc ncurses jq >/dev/null"
-  else
-    sleep 3
-    pct exec "$CTID" -- bash -c "sed -i '/$LANG/ s/^# //' /etc/locale.gen"
-    pct exec "$CTID" -- bash -c "locale_line=\$(grep -v '^#' /etc/locale.gen | grep -E '^[a-zA-Z]' | awk '{print \$1}' | head -n 1) && \
-    echo LANG=\$locale_line >/etc/default/locale && \
-    locale-gen >/dev/null && \
-    export LANG=\$locale_line"
+    ;;
 
+  debian | ubuntu | devuan)
+    # Locale setup for Debian-based
+    pct exec "$CTID" -- bash -c "sed -i '/$LANG/ s/^# //' /etc/locale.gen 2>/dev/null || true"
+    pct exec "$CTID" -- bash -c "locale_line=\$(grep -v '^#' /etc/locale.gen 2>/dev/null | grep -E '^[a-zA-Z]' | awk '{print \$1}' | head -n 1) && \
+      [[ -n \"\$locale_line\" ]] && echo LANG=\$locale_line >/etc/default/locale && \
+      locale-gen >/dev/null 2>&1 && \
+      export LANG=\$locale_line || true"
+
+    # Timezone setup
     if [[ -z "${tz:-}" ]]; then
       tz=$(timedatectl show --property=Timezone --value 2>/dev/null || echo "Etc/UTC")
     fi
-
     if pct exec "$CTID" -- test -e "/usr/share/zoneinfo/$tz"; then
-      # Set timezone using symlink (Debian 13+ compatible)
-      # Create /etc/timezone for backwards compatibility with older scripts
       pct exec "$CTID" -- bash -c "tz='$tz'; ln -sf \"/usr/share/zoneinfo/\$tz\" /etc/localtime && echo \"\$tz\" >/etc/timezone || true"
     else
       msg_warn "Skipping timezone setup – zone '$tz' not found in container"
     fi
 
+    # Core dependencies
     pct exec "$CTID" -- bash -c "apt-get update >/dev/null && apt-get install -y sudo curl mc gnupg2 jq >/dev/null" || {
       msg_error "apt-get base packages installation failed"
       exit 1
     }
-  fi
+    ;;
+
+  fedora | rockylinux | almalinux | centos)
+    # RHEL-based: Fedora, Rocky, AlmaLinux, CentOS
+    pct exec "$CTID" -- bash -c "dnf install -y curl sudo mc jq procps-ng >/dev/null 2>&1 || yum install -y curl sudo mc jq procps-ng >/dev/null 2>&1" || {
+      msg_error "dnf/yum base packages installation failed"
+      exit 1
+    }
+    ;;
+
+  opensuse)
+    # openSUSE
+    pct exec "$CTID" -- bash -c "zypper --non-interactive install curl sudo mc jq >/dev/null" || {
+      msg_error "zypper base packages installation failed"
+      exit 1
+    }
+    ;;
+
+  gentoo)
+    # Gentoo - emerge is slow, only install essentials
+    pct exec "$CTID" -- bash -c "emerge --quiet app-misc/jq net-misc/curl app-misc/mc >/dev/null 2>&1" || {
+      msg_warn "Gentoo base packages installation incomplete - may need manual setup"
+    }
+    ;;
+
+  openeuler)
+    # openEuler (RHEL-compatible)
+    pct exec "$CTID" -- bash -c "dnf install -y curl sudo mc jq >/dev/null" || {
+      msg_error "dnf base packages installation failed"
+      exit 1
+    }
+    ;;
+
+  *)
+    msg_warn "Unknown OS '$var_os' - skipping core dependency installation"
+    ;;
+  esac
 
   msg_ok "Customized LXC Container"
 
@@ -3394,11 +3431,15 @@ create_lxc_container() {
 
   # ------------------------------------------------------------------------------
   # Template discovery & validation
+  # Supported OS types (pveam available): alpine, almalinux, centos, debian,
+  #   devuan, fedora, gentoo, openeuler, opensuse, rockylinux, ubuntu
   # ------------------------------------------------------------------------------
   TEMPLATE_SEARCH="${PCT_OSTYPE}-${PCT_OSVERSION:-}"
   case "$PCT_OSTYPE" in
-  debian | ubuntu) TEMPLATE_PATTERN="-standard_" ;;
-  alpine | fedora | rocky | centos) TEMPLATE_PATTERN="-default_" ;;
+  debian | ubuntu | devuan) TEMPLATE_PATTERN="-standard_" ;;
+  alpine | fedora | rocky | rockylinux | centos | almalinux | openeuler) TEMPLATE_PATTERN="-default_" ;;
+  gentoo) TEMPLATE_PATTERN="-current_" ;;
+  opensuse) TEMPLATE_PATTERN="-default_" ;;
   *) TEMPLATE_PATTERN="" ;;
   esac
 
diff --git a/misc/core.func b/misc/core.func
index a5668f820..f33e34134 100644
--- a/misc/core.func
+++ b/misc/core.func
@@ -795,7 +795,6 @@ is_verbose_mode() {
 # ------------------------------------------------------------------------------
 cleanup_lxc() {
   msg_info "Cleaning up"
-
   # OS-specific package manager cleanup
   if is_alpine; then
     $STD apk cache clean 2>/dev/null || true
diff --git a/misc/install.func b/misc/install.func
index f41c0812d..12edea009 100644
--- a/misc/install.func
+++ b/misc/install.func
@@ -24,7 +24,7 @@
 # Features:
 #   - Automatic OS detection
 #   - Unified package manager abstraction
-#   - Init system abstraction (systemd/OpenRC/runit/sysvinit)
+#   - Init system abstraction (systemd/OpenRC/sysvinit)
 #   - Network connectivity verification
 #   - MOTD and SSH configuration
 #   - Container customization
@@ -39,8 +39,8 @@
 OS_TYPE=""     # debian, ubuntu, devuan, alpine, fedora, rocky, alma, centos, opensuse, gentoo, openeuler
 OS_FAMILY=""   # debian, alpine, rhel, suse, gentoo
 OS_VERSION=""  # Version number
-PKG_MANAGER="" # apt, apk, dnf, yum, pacman, zypper, emerge, nix-env
-INIT_SYSTEM="" # systemd, openrc, runit, sysvinit
+PKG_MANAGER="" # apt, apk, dnf, yum, zypper, emerge
+INIT_SYSTEM="" # systemd, openrc, sysvinit
 
 # ------------------------------------------------------------------------------
 # detect_os()
@@ -143,8 +143,6 @@ detect_os() {
     INIT_SYSTEM="systemd"
   elif command -v rc-service &>/dev/null || [[ -d /etc/init.d && -f /sbin/openrc ]]; then
     INIT_SYSTEM="openrc"
-  elif command -v sv &>/dev/null && [[ -d /etc/sv ]]; then
-    INIT_SYSTEM="runit"
   elif [[ -f /etc/inittab ]]; then
     INIT_SYSTEM="sysvinit"
   else
@@ -167,8 +165,6 @@ _bootstrap() {
       dnf install -y curl &>/dev/null
     elif command -v yum &>/dev/null; then
       yum install -y curl &>/dev/null
-    elif command -v pacman &>/dev/null; then
-      pacman -Sy --noconfirm curl &>/dev/null
     elif command -v zypper &>/dev/null; then
       zypper install -y curl &>/dev/null
     elif command -v emerge &>/dev/null; then
@@ -210,18 +206,12 @@ pkg_update() {
   yum)
     $STD yum makecache
     ;;
-  pacman)
-    $STD pacman -Sy
-    ;;
   zypper)
     $STD zypper refresh
     ;;
   emerge)
     $STD emerge --sync
     ;;
-  nix-env)
-    $STD nix-channel --update
-    ;;
   *)
     msg_error "Unknown package manager: $PKG_MANAGER"
     return 1
@@ -248,18 +238,12 @@ pkg_upgrade() {
   yum)
     $STD yum -y update
     ;;
-  pacman)
-    $STD pacman -Syu --noconfirm
-    ;;
   zypper)
     $STD zypper -n update
     ;;
   emerge)
     $STD emerge --quiet --update --deep @world
     ;;
-  nix-env)
-    $STD nix-env -u
-    ;;
   *)
     msg_error "Unknown package manager: $PKG_MANAGER"
     return 1
@@ -291,20 +275,12 @@ pkg_install() {
   yum)
     $STD yum install -y "${packages[@]}"
     ;;
-  pacman)
-    $STD pacman -S --noconfirm "${packages[@]}"
-    ;;
   zypper)
     $STD zypper install -y "${packages[@]}"
     ;;
   emerge)
     $STD emerge --quiet "${packages[@]}"
     ;;
-  nix-env)
-    for pkg in "${packages[@]}"; do
-      $STD nix-env -iA "nixos.$pkg"
-    done
-    ;;
   *)
     msg_error "Unknown package manager: $PKG_MANAGER"
     return 1
@@ -334,20 +310,12 @@ pkg_remove() {
   yum)
     $STD yum remove -y "${packages[@]}"
     ;;
-  pacman)
-    $STD pacman -Rs --noconfirm "${packages[@]}"
-    ;;
   zypper)
     $STD zypper remove -y "${packages[@]}"
     ;;
   emerge)
     $STD emerge --quiet --unmerge "${packages[@]}"
     ;;
-  nix-env)
-    for pkg in "${packages[@]}"; do
-      $STD nix-env -e "$pkg"
-    done
-    ;;
   *)
     msg_error "Unknown package manager: $PKG_MANAGER"
     return 1
@@ -376,18 +344,12 @@ pkg_clean() {
   yum)
     $STD yum clean all
     ;;
-  pacman)
-    $STD pacman -Scc --noconfirm
-    ;;
   zypper)
     $STD zypper clean
     ;;
   emerge)
     $STD emerge --quiet --depclean
     ;;
-  nix-env)
-    $STD nix-collect-garbage -d
-    ;;
   *)
     return 0
     ;;
@@ -414,9 +376,6 @@ svc_enable() {
   openrc)
     $STD rc-update add "$service" default
     ;;
-  runit)
-    [[ -d "/etc/sv/$service" ]] && ln -sf "/etc/sv/$service" "/var/service/"
-    ;;
   sysvinit)
     if command -v update-rc.d &>/dev/null; then
       $STD update-rc.d "$service" defaults
@@ -447,9 +406,6 @@ svc_disable() {
   openrc)
     $STD rc-update del "$service" default 2>/dev/null || true
     ;;
-  runit)
-    rm -f "/var/service/$service"
-    ;;
   sysvinit)
     if command -v update-rc.d &>/dev/null; then
       $STD update-rc.d "$service" remove
@@ -479,9 +435,6 @@ svc_start() {
   openrc)
     $STD rc-service "$service" start
     ;;
-  runit)
-    $STD sv start "$service"
-    ;;
   sysvinit)
     $STD /etc/init.d/"$service" start
     ;;
@@ -507,9 +460,6 @@ svc_stop() {
   openrc)
     $STD rc-service "$service" stop
     ;;
-  runit)
-    $STD sv stop "$service"
-    ;;
   sysvinit)
     $STD /etc/init.d/"$service" stop
     ;;
@@ -535,9 +485,6 @@ svc_restart() {
   openrc)
     $STD rc-service "$service" restart
     ;;
-  runit)
-    $STD sv restart "$service"
-    ;;
   sysvinit)
     $STD /etc/init.d/"$service" restart
     ;;
@@ -563,9 +510,6 @@ svc_status() {
   openrc)
     rc-service "$service" status &>/dev/null
     ;;
-  runit)
-    sv status "$service" | grep -q "^run:"
-    ;;
   sysvinit)
     /etc/init.d/"$service" status &>/dev/null
     ;;
@@ -846,6 +790,30 @@ EOF
 
   # Configure SSH root access if requested
   if [[ "${SSH_ROOT:-}" == "yes" ]]; then
+    # Ensure SSH server is installed
+    if [[ ! -f /etc/ssh/sshd_config ]]; then
+      msg_info "Installing SSH server"
+      case "$PKG_MANAGER" in
+      apt)
+        pkg_install openssh-server
+        ;;
+      apk)
+        pkg_install openssh
+        rc-update add sshd default 2>/dev/null || true
+        ;;
+      dnf | yum)
+        pkg_install openssh-server
+        ;;
+      zypper)
+        pkg_install openssh
+        ;;
+      emerge)
+        pkg_install net-misc/openssh
+        ;;
+      esac
+      msg_ok "Installed SSH server"
+    fi
+
     local sshd_config="/etc/ssh/sshd_config"
     if [[ -f "$sshd_config" ]]; then
       sed -i "s/#PermitRootLogin prohibit-password/PermitRootLogin yes/g" "$sshd_config"