WIP installation on a disk with a Dell utility partition

tests/install/conftest.py

@@ -112,7 +112,19 @@ def installer_iso(request):
 @pytest.fixture(scope='function')
 def install_disk(request):
     firmware = request.getfixturevalue("firmware")
-    yield {"uefi": "nvme0n1", "bios": "sda"}[firmware]
+    if firmware.startswith("uefi"):
+        yield "nvme0n1"
+    elif firmware.startswith("bios"):
+        yield "sda"
+    else:
+        assert False, f"unknown firmware {firmware!r}"
+
+@pytest.fixture(scope='function')
+def answerfile_maybe_tweak_parttable(request, answerfile):
+    firmware = request.getfixturevalue("firmware")
+    if firmware.endswith("+dell"):
+        answerfile.top_append(dict(TAG="script", stage="installation-start",
+                                   type="url", CONTENTS="file:///root/preinstall-utilitypart.sh"))
 
 # Remasters the ISO sepecified by `installer_iso` mark, with:
 # - network and ssh support activated, and .ssh/authorized_key so tests can
@@ -127,7 +139,7 @@ def install_disk(request):
 #     in contexts where the same IP is reused by successively different MACs
 #     (when cloning VMs from cache)
 @pytest.fixture(scope='function')
-def remastered_iso(installer_iso, answerfile):
+def remastered_iso(installer_iso, answerfile, install_disk):
     iso_file = installer_iso['iso']
     unsigned = installer_iso['unsigned']
 
@@ -223,6 +235,18 @@ def remastered_iso(installer_iso, answerfile):
     chmod +x "$INSTALLIMG/etc/init.d/S12test-pingpxe"
 fi
 
+cat > "$INSTALLIMG/root/preinstall-utilitypart.sh" <<'EOF'
+#!/bin/sh
+set -ex
+
+# Dell utility partition
+sgdisk --zap-all /dev/{install_disk}
+sfdisk /dev/{install_disk} << 'EOP'
+unit: sectors
+p1 : start=     2048, size=    32768, Id=de
+EOP
+EOF
+
 cat > "$INSTALLIMG/root/postinstall.sh" <<'EOF'
 #!/bin/sh
 set -ex

tests/install/test.py

@@ -32,7 +32,7 @@ class TestNested:
         "xs8", "ch821.1",
         "xs70",
     ))
-    @pytest.mark.parametrize("firmware", ("uefi", "bios"))
+    @pytest.mark.parametrize("firmware", ("uefi", "bios", "bios+dell"))
     @pytest.mark.vm_definitions(
         lambda firmware: dict(
             name="vm1",
@@ -52,6 +52,7 @@ class TestNested:
                     dict(param_name="platform", key="device-model", value="qemu-upstream-uefi"),
                 ),
                 "bios": (),
+                "bios+dell": (),
             }[firmware],
             vdis=[dict(name="vm1 system disk", size="100GiB", device="xvda", userdevice="0")],
             cd_vbd=dict(device="xvdd", userdevice="3"),
@@ -69,7 +70,8 @@ class TestNested:
              "guest-storage": "no" if local_sr == "nosr" else "yes",
              "CONTENTS": install_disk},
         ))
-    def test_install(self, vm_booted_with_installer, install_disk,
+    def test_install(self, answerfile_maybe_tweak_parttable,
+                     vm_booted_with_installer, install_disk,
                      firmware, iso_version, package_source, local_sr):
         host_vm = vm_booted_with_installer
         installer.monitor_install(ip=host_vm.ip)
@@ -107,7 +109,7 @@ def helper_vm_with_plugged_disk(running_vm, create_vms):
         "ch821.1", "xs8",
         "xs70",
     ))
-    @pytest.mark.parametrize("firmware", ("uefi", "bios"))
+    @pytest.mark.parametrize("firmware", ("uefi", "bios", "bios+dell"))
     @pytest.mark.continuation_of(
         lambda version, firmware, local_sr, package_source: [dict(
             vm="vm1",
@@ -117,7 +119,9 @@ def test_tune_firstboot(self, create_vms, helper_vm_with_plugged_disk,
                             firmware, version, machine, local_sr, package_source):
         helper_vm = helper_vm_with_plugged_disk
 
-        helper_vm.ssh(["mount /dev/xvdb1 /mnt"])
+        main_part = "/dev/xvdb2" if firmware.endswith("+dell") else "/dev/xvdb1"
+
+        helper_vm.ssh(["mount", main_part, "/mnt"])
         try:
             # hostname
             logging.info("Setting hostname to %r", machine)
@@ -138,7 +142,7 @@ def test_tune_firstboot(self, create_vms, helper_vm_with_plugged_disk,
                  '/mnt/etc/xensource-inventory'])
             helper_vm.ssh(["grep UUID /mnt/etc/xensource-inventory"])
         finally:
-            helper_vm.ssh(["umount /dev/xvdb1"])
+            helper_vm.ssh(["umount", main_part])
 
     def _test_firstboot(self, create_vms, mode, *, machine='DEFAULT'):
         host_vm = create_vms[0]
@@ -298,7 +302,7 @@ def _test_firstboot(self, create_vms, mode, *, machine='DEFAULT'):
         "ch821.1", "xs8",
         "xs70",
     ))
-    @pytest.mark.parametrize("firmware", ("uefi", "bios"))
+    @pytest.mark.parametrize("firmware", ("uefi", "bios", "bios+dell"))
     @pytest.mark.continuation_of(
         lambda firmware, version, machine, local_sr, package_source: [
             dict(vm="vm1",
@@ -327,7 +331,7 @@ def test_boot_inst(self, create_vms,
         ("821.1", "821.1"),
         ("75", "821.1"),
     ])
-    @pytest.mark.parametrize("firmware", ("uefi", "bios"))
+    @pytest.mark.parametrize("firmware", ("uefi", "bios", "bios+dell"))
     @pytest.mark.continuation_of(
         lambda firmware, orig_version, machine, package_source, local_sr: [dict(
             vm="vm1",
@@ -362,7 +366,7 @@ def test_upgrade(self, vm_booted_with_installer, install_disk,
         "821.1-821.1",
         "75-821.1",
     ))
-    @pytest.mark.parametrize("firmware", ("uefi", "bios"))
+    @pytest.mark.parametrize("firmware", ("uefi", "bios", "bios+dell"))
     @pytest.mark.continuation_of(
         lambda firmware, mode, machine, package_source, local_sr: [dict(
             vm="vm1",
@@ -387,7 +391,7 @@ def test_boot_upg(self, create_vms,
         ("83rcnet-83rcnet", "83rcnet"), # FIXME
         ("821.1-821.1", "821.1"),
     ])
-    @pytest.mark.parametrize("firmware", ("uefi", "bios"))
+    @pytest.mark.parametrize("firmware", ("uefi", "bios", "bios+dell"))
     @pytest.mark.continuation_of(
         lambda firmware, orig_version, local_sr, package_source: [dict(
             vm="vm1",
@@ -418,7 +422,7 @@ def test_restore(self, vm_booted_with_installer, install_disk,
         "83rcnet-83rcnet", "83rcnet-83rcnet-83rcnet", # FIXME
         "821.1-821.1-821.1",
     ))
-    @pytest.mark.parametrize("firmware", ("uefi", "bios"))
+    @pytest.mark.parametrize("firmware", ("uefi", "bios", "bios+dell"))
     @pytest.mark.continuation_of(
         lambda firmware, mode, package_source, local_sr: [dict(
             vm="vm1",