diff --git a/subiquity/client/controllers/mirror.py b/subiquity/client/controllers/mirror.py
index 26082660..aab2ea93 100644
--- a/subiquity/client/controllers/mirror.py
+++ b/subiquity/client/controllers/mirror.py
@@ -15,6 +15,7 @@
 
 import asyncio
 import logging
+from typing import Optional
 
 from subiquity.client.controller import SubiquityTuiController
 from subiquity.common.types import MirrorCheckStatus, MirrorGet, MirrorPost
@@ -42,6 +43,15 @@ class MirrorController(SubiquityTuiController):
             # Just in case there is no candidate at all.
             # In practise, it should seldom happen.
             url = next(iter(mirror_response.candidates), "")
+
+        if not mirror_response.use_during_installation:
+            # If the user comes back to the mirror screen after accepting to
+            # do an installation without the archive (i.e., only fetching from
+            # the pool), the call to /network/has_network will return false. We
+            # need to reset the force_offline value if we want to run another
+            # mirror test.
+            await self.endpoint.POST(MirrorPost(use_during_installation=True))
+
         has_network = await self.app.client.network.has_network.GET()
         if has_network:
             check = await self.endpoint.check_mirror.progress.GET()
@@ -69,6 +79,19 @@ class MirrorController(SubiquityTuiController):
     def cancel(self):
         self.app.prev_screen()
 
-    def done(self, mirror):
-        log.debug("MirrorController.done next_screen mirror=%s", mirror)
-        self.app.next_screen(self.endpoint.POST(MirrorPost(elected=mirror)))
+    def done(self, mirror, skip_archive: Optional[bool]):
+        if skip_archive is not None:
+            use_during_installation = not skip_archive
+        else:
+            use_during_installation = None
+
+        data = MirrorPost(
+            elected=mirror, use_during_installation=use_during_installation
+        )
+
+        log.debug(
+            "MirrorController.done next_screen mirror=%s, use_during_installation=%s",
+            mirror,
+            use_during_installation,
+        )
+        self.app.next_screen(self.endpoint.POST(data))
diff --git a/subiquity/common/types.py b/subiquity/common/types.py
index 4c5ae938..5155a0e1 100644
--- a/subiquity/common/types.py
+++ b/subiquity/common/types.py
@@ -879,6 +879,7 @@ class MirrorPost:
     elected: Optional[str] = None
     candidates: Optional[List[str]] = None
     staged: Optional[str] = None
+    use_during_installation: Optional[bool] = None
 
 
 class MirrorPostResponse(enum.Enum):
@@ -892,6 +893,9 @@ class MirrorGet:
     elected: Optional[str]
     candidates: List[str]
     staged: Optional[str]
+    # Tells whether the mirror will be used during the installation.
+    # When it is False, we will only fetch packages from the pool.
+    use_during_installation: bool
 
 
 class MirrorSelectionFallback(enum.Enum):
diff --git a/subiquity/server/controllers/mirror.py b/subiquity/server/controllers/mirror.py
index 3f85f1da..ac3a9560 100644
--- a/subiquity/server/controllers/mirror.py
+++ b/subiquity/server/controllers/mirror.py
@@ -368,7 +368,11 @@ class MirrorController(SubiquityController):
             # Skip the country-mirrors if they have not been resolved yet.
             candidates = [c.uri for c in compatibles if c.uri is not None]
         return MirrorGet(
-            relevant=relevant, elected=elected, candidates=candidates, staged=staged
+            relevant=relevant,
+            elected=elected,
+            candidates=candidates,
+            staged=staged,
+            use_during_installation=not self.app.base_model.network.force_offline,
         )
 
     async def POST(self, data: Optional[MirrorPost]) -> MirrorPostResponse:
@@ -420,6 +424,10 @@ class MirrorController(SubiquityController):
                 ensure_elected_in_candidates()
 
             await self.configured()
+
+        if data.use_during_installation is not None:
+            self.app.base_model.network.force_offline = not data.use_during_installation
+
         return MirrorPostResponse.OK
 
     async def disable_components_GET(self) -> List[str]:
diff --git a/subiquity/ui/views/mirror.py b/subiquity/ui/views/mirror.py
index 7a581aa1..28bd99b9 100644
--- a/subiquity/ui/views/mirror.py
+++ b/subiquity/ui/views/mirror.py
@@ -47,8 +47,10 @@ MIRROR_CHECK_CONFIRMATION_TEXTS = {
     MirrorCheckStatus.FAILED: (
         _("Mirror check failed"),
         _(
-            "The check of the mirror URL failed. You can continue, but it is very"
-            " likely that the installation will fail."
+            "The check of the mirror URL failed. If you decide to continue, only"
+            " packages present on the installation media will be considered for"
+            " installation. Remember to install security updates after booting"
+            " your newly installed system."
         ),
     ),
     None: (
@@ -217,7 +219,7 @@ class MirrorView(BaseView):
         self.last_status = check_state.status
 
     def done(self, result):
-        async def confirm_continue_anyway() -> None:
+        async def confirm_continue_anyway(continue_skip_archive: bool) -> None:
             title, question = MIRROR_CHECK_CONFIRMATION_TEXTS[self.last_status]
             confirmed = await self.ask_confirmation(
                 title=title,
@@ -227,7 +229,8 @@ class MirrorView(BaseView):
             )
 
             if confirmed:
-                self.controller.done(result.url.value)
+                skip_archive = True if continue_skip_archive else None
+                self.controller.done(result.url.value, skip_archive=skip_archive)
 
         log.debug("User input: {}".format(result.as_data()))
         if self.has_network and self.last_status in [
@@ -235,9 +238,10 @@ class MirrorView(BaseView):
             MirrorCheckStatus.FAILED,
             None,
         ]:
-            async_helpers.run_bg_task(confirm_continue_anyway())
+            status_is_failed = self.last_status == MirrorCheckStatus.FAILED
+            async_helpers.run_bg_task(confirm_continue_anyway(status_is_failed))
         else:
-            self.controller.done(result.url.value)
+            self.controller.done(result.url.value, skip_archive=None)
 
     def cancel(self, result=None):
         self.controller.cancel()