Ubuntu Focal support

incl. minor fixes

usr/local/share/bastille/bootstrap.sh

@@ -462,12 +462,52 @@ ubuntu_bionic|bionic|ubuntu-bionic)
                 ;;
         esac
     fi
+    echo "APT::Cache-Start 251658240;" > ${bastille_releasesdir}/Ubuntu_1804/etc/apt/apt.conf.d/00aptitude
+    ;;
+ubuntu_focal|focal|ubuntu-focal)
+    #check and install OS dependencies @hackacad
+    #ToDo: add function 'linux_pre' for sysrc etc.
+    if [ ! "$(sysrc -f /boot/loader.conf -n linprocfs_load)" = "YES" ] && [ ! "$(sysrc -f /boot/loader.conf -n linsysfs_load)" = "YES" ] && [ ! "$(sysrc -f /boot/loader.conf -n tmpfs_load)" = "YES" ]; then
+        warn "linprocfs_load, linsysfs_load, tmpfs_load not enabled in /boot/loader.conf or linux_enable not active. Should I do that for you?  (N|y)"
+        read  answer
+        case $answer in
+            no|No|n|N|"")
+                error_exit "Exiting."
+                ;;
+            yes|Yes|y|Y)
+                info "Loading modules"
+                kldload linux linux64 linprocfs linsysfs tmpfs
+                info "Persisting modules"
+                sysrc linux_enable=YES
+                sysrc -f /boot/loader.conf linprocfs_load=YES
+                sysrc -f /boot/loader.conf linsysfs_load=YES
+                sysrc -f /boot/loader.conf tmpfs_load=YES
+                ;;
+        esac
+    fi
+    if which -s debootstrap; then
+        debootstrap --foreign --arch=amd64 --no-check-gpg focal ${bastille_releasesdir}/Ubuntu_2004
+    else
+        warn "Debootstrap not found. Should it be installed? (N|y)"
+        read  answer
+        case $answer in
+            no|No|n|N|"")
+                error_exit "Exiting. You need to install debootstap before boostrapping a Linux jail."
+                ;;
+            yes|Yes|y|Y)
+                pkg install debootstrap -y
+                debootstrap --foreign --arch=amd64 --no-check-gpg focal ${bastille_releasesdir}/Ubuntu_2004
+                ;;
+        esac
+    fi
     ;;
 *)
     usage
     ;;
 esac
 
+
+
 case "${OPTION}" in
 update)
     bastille update "${RELEASE}"