Merge pull request #86 from JedMeister/18.x-container-improvements

remove more packages when building containers

patches/container/conf

@@ -31,8 +31,16 @@ apt-get -y purge "$OLD_META_KERNEL" "$OLD_KERNEL"
 # stop auto-secupdates complaining
 mkdir -p /lib/modules
 
-# remove ntp, jitterentropy & acpi daemons
-apt-get purge -y ntpsec jitterentropy-rngd acpid  || true
+# remove packages that are problematic, redundant and/or not usable in a
+# container
+apt-get purge -y \
+    ntpsec \
+    jitterentropy-rngd \
+    acpid \
+    fdisk webmin-fdisk \
+    lvm2 webmin-lvm \
+    webmin-raid webmin-mount \
+    || true
 
 # disable ssh.socket so that sshd runs reliably - closes #1722
 systemctl mask ssh.socket