diff --git a/man/systemctl.xml b/man/systemctl.xml
index a4023349d5..bd64e430c3 100644
--- a/man/systemctl.xml
+++ b/man/systemctl.xml
@@ -2012,10 +2012,18 @@ Jan 12 10:46:45 example.com bluetoothd[8900]: gatt-time-server: Input/output err
         <term><option>--no-warn</option></term>
 
         <listitem>
-          <para>Don't generate the warning shown by default when using
-          <command>enable</command> or <command>disable</command> on units
-          without install information (i.e. don't have or have an empty
-          [Install] section).</para>
+          <para>Don't generate the warnings shown by default in the following cases:
+          <itemizedlist>
+            <listitem>
+              <para>when <command>systemctl</command> is invoked without procfs mounted on
+              <filename>/proc/</filename>,</para>
+            </listitem>
+            <listitem>
+              <para>when using <command>enable</command> or <command>disable</command> on units without
+              install information (i.e. don't have or have an empty [Install] section).</para>
+            </listitem>
+          </itemizedlist>
+          </para>
         </listitem>
       </varlistentry>
 
diff --git a/shell-completion/bash/systemctl.in b/shell-completion/bash/systemctl.in
index f935960c77..3c64467e2f 100644
--- a/shell-completion/bash/systemctl.in
+++ b/shell-completion/bash/systemctl.in
@@ -128,7 +128,7 @@ _systemctl () {
         [STANDALONE]='--all -a --reverse --after --before --defaults --force -f --full -l --global
                              --help -h --no-ask-password --no-block --legend=no --no-pager --no-reload --no-wall --now
                              --quiet -q --system --user --version --runtime --recursive -r --firmware-setup
-                             --show-types --plain --failed --value --fail --dry-run --wait'
+                             --show-types --plain --failed --value --fail --dry-run --wait --no-warn'
         [ARG]='--host -H --kill-whom --property -p --signal -s --type -t --state --job-mode --root
                              --preset-mode -n --lines -o --output -M --machine --message --timestamp --check-inhibitors'
     )
diff --git a/shell-completion/zsh/_systemctl.in b/shell-completion/zsh/_systemctl.in
index d471743030..2811582236 100644
--- a/shell-completion/zsh/_systemctl.in
+++ b/shell-completion/zsh/_systemctl.in
@@ -480,6 +480,7 @@ _arguments -s \
     '--show-types[When showing sockets, show socket type]' \
     '--check-inhibitors[Specify if inhibitors should be checked]:mode:_systemctl_check_inhibitors' \
     {-q,--quiet}'[Suppress output]' \
+    '--no-warn[Suppress several warnings shown by default]' \
     '--no-block[Do not wait until operation finished]' \
     '--legend=no[Do not print a legend, i.e. the column headers and the footer with hints]' \
     '--no-pager[Do not pipe output into a pager]' \
diff --git a/src/systemctl/systemctl.c b/src/systemctl/systemctl.c
index ae9b95620e..4e7fd0460c 100644
--- a/src/systemctl/systemctl.c
+++ b/src/systemctl/systemctl.c
@@ -281,8 +281,7 @@ static int systemctl_help(void) {
                "                             kexec, suspend, hibernate, suspend-then-hibernate,\n"
                "                             hybrid-sleep, default, rescue, emergency, and exit.\n"
                "  -q --quiet             Suppress output\n"
-               "     --no-warn           Don't generate warning when trying to enable/disable\n"
-               "                         units without install information\n"
+               "     --no-warn           Suppress several warnings shown by default\n"
                "     --wait              For (re)start, wait until service stopped again\n"
                "                         For is-system-running, wait until startup is completed\n"
                "     --no-block          Do not wait until operation finished\n"
@@ -1168,11 +1167,12 @@ static int run(int argc, char *argv[]) {
                 goto finish;
 
         if (proc_mounted() == 0)
-                log_warning("%s%s/proc/ is not mounted. This is not a supported mode of operation. Please fix\n"
-                            "your invocation environment to mount /proc/ and /sys/ properly. Proceeding anyway.\n"
-                            "Your mileage may vary.",
-                            emoji_enabled() ? special_glyph(SPECIAL_GLYPH_WARNING_SIGN) : "",
-                            emoji_enabled() ? " " : "");
+                log_full(arg_no_warn ? LOG_DEBUG : LOG_WARNING,
+                         "%s%s/proc/ is not mounted. This is not a supported mode of operation. Please fix\n"
+                         "your invocation environment to mount /proc/ and /sys/ properly. Proceeding anyway.\n"
+                         "Your mileage may vary.",
+                         emoji_enabled() ? special_glyph(SPECIAL_GLYPH_WARNING_SIGN) : "",
+                         emoji_enabled() ? " " : "");
 
         if (arg_action != ACTION_SYSTEMCTL && running_in_chroot() > 0) {
                 if (!arg_quiet)