Repository: osbuild/osbuild-composer (go)

Issue:
RHEL 9.0: use `C.UTF-8` for images that only have `glibc-minimal-langpack`
We currently set `en_US.UTF-8` for all images:
https://github.com/osbuild/osbuild-composer/blob/1c2c97c90023edb699b4f98d39ba5a275df1fcf2/internal/distro/rhel90/distro.go#L60

According to the glib team, if `glibc-minimal-langpack` is installed, only `C.UTF-8` is available.

The following images should be affected:
  * [qcow2](https://github.com/osbuild/osbuild-composer/blob/1c2c97c90023edb699b4f98d39ba5a275df1fcf2/internal/distro/rhel90/package_sets.go#L400)
  * [edge commit](https://github.com/osbuild/osbuild-composer/blob/1c2c97c90023edb699b4f98d39ba5a275df1fcf2/internal/distro/rhel90/package_sets.go#L693)
 * [bare metal](https://github.com/osbuild/osbuild-composer/blob/1c2c97c90023edb699b4f98d39ba5a275df1fcf2/internal/distro/rhel90/package_sets.go#L824)
 * [edge simplified installer](https://github.com/osbuild/osbuild-composer/blob/1c2c97c90023edb699b4f98d39ba5a275df1fcf2/internal/distro/rhel90/package_sets.go#L1119)

Images that install `langpacks-en`:
 * [vhd](https://github.com/osbuild/osbuild-composer/blob/1c2c97c90023edb699b4f98d39ba5a275df1fcf2/internal/distro/rhel90/package_sets.go#L460)
 * [vmdk](https://github.com/osbuild/osbuild-composer/blob/1c2c97c90023edb699b4f98d39ba5a275df1fcf2/internal/distro/rhel90/package_sets.go#L509)
 * [openstack](https://github.com/osbuild/osbuild-composer/blob/1c2c97c90023edb699b4f98d39ba5a275df1fcf2/internal/distro/rhel90/package_sets.go#L546)
 * [ec2](https://github.com/osbuild/osbuild-composer/blob/1c2c97c90023edb699b4f98d39ba5a275df1fcf2/internal/distro/rhel90/package_sets.go#L597)
 * [anacond](https://github.com/osbuild/osbuild-composer/blob/1c2c97c90023edb699b4f98d39ba5a275df1fcf2/internal/distro/rhel90/package_sets.go#L939)

I took this info from the package sets. Maybe need to verify it by looking at the fully dep-solved package list.

Downstream bug: [rhbz#2000878](https://bugzilla.redhat.com/show_bug.cgi?id=2000878)

Pull request description:
RHEL-90: use C.UTF-8 for images that only have glibc-minimal-langpack
Change the default locale to `C.UTF-8` for RHEL-9.0.
For all the images which install `langpack-en`, keep using the
`en_US.UTF-8` locale. `C.UTF-8` is used as the default for:
 - edge-commit
 - edge-container
 - image-installer
 - qcow2
 - tar

Also change the default locale for the edge-simplified-installer
installer-tree pipeline, since its package set contains only
`glibc-minimal-langpack`.

Regenerate RHEL-90 and c9s image tests.

Fix #2206

Signed-off-by: Tomas Hozza <thozza@redhat.com>

TODO:

- [x] regenerate image tests

This pull request includes:

- [ ] adequate testing for the new functionality or fixed issue
- [ ] adequate documentation informing people about the change such as
  - [ ] submit a PR for the [guides](https://github.com/osbuild/guides) repository if this PR changed any behavior described there: https://www.osbuild.org/guides/

<!--
Thanks for proposing a change to osbuild-composer!

Please don't remove the above check list. These are things that each pull
request must have before it is merged. It helps maintainers to not forget
anything.

If the reason for ticking any of the boxes is ambiguous, please add a short
note explaining why.

In addition, if this pull request fixes a downstream issue, please refer to
test/README.md and add these additional items:

- [ ] 1st commit of any `rhbz#` related PR contains bug reproducer; CI reports FAIL or
- [ ] PR contains automated tests for new functionality and
- [ ] QE has approved reproducer/new tests and
- [ ] Subsequent commits provide bug fixes without modifying the reproducer; CI reports PASS and
- [ ] QE approves this PR; RHBZ status is set to `MODIFIED + Verified=Tested`
-->


Patch:
diff --git a/internal/distro/rhel90/distro.go b/internal/distro/rhel90/distro.go
index 40f6422f6..1025e86f0 100644
--- a/internal/distro/rhel90/distro.go
+++ b/internal/distro/rhel90/distro.go
@@ -57,7 +57,7 @@ type distribution struct {
 // RHEL-based OS image configuration defaults
 var defaultDistroImageConfig = &distro.ImageConfig{
 	Timezone: "America/New_York",
-	Locale:   "en_US.UTF-8",
+	Locale:   "C.UTF-8",
 	Sysconfig: []*osbuild.SysconfigStageOptions{
 		{
 			Kernel: &osbuild.SysconfigKernelOptions{
@@ -695,6 +695,9 @@ func newDistro(distroName string) distro.Distro {
 		packageSets: map[string]packageSetFunc{
 			buildPkgsKey: edgeRawImageBuildPackageSet,
 		},
+		defaultImageConfig: &distro.ImageConfig{
+			Locale: "en_US.UTF-8",
+		},
 		defaultSize:         10 * GigaByte,
 		rpmOstree:           true,
 		bootable:            true,
@@ -724,6 +727,7 @@ func newDistro(distroName string) distro.Distro {
 			installerPkgsKey: edgeInstallerPackageSet,
 		},
 		defaultImageConfig: &distro.ImageConfig{
+			Locale:          "en_US.UTF-8",
 			EnabledServices: edgeServices,
 		},
 		rpmOstree:        true,
@@ -806,6 +810,7 @@ func newDistro(distroName string) distro.Distro {
 			osPkgsKey:    vhdCommonPackageSet,
 		},
 		defaultImageConfig: &distro.ImageConfig{
+			Locale: "en_US.UTF-8",
 			EnabledServices: []string{
 				"sshd",
 				"waagent",
@@ -830,6 +835,9 @@ func newDistro(distroName string) distro.Distro {
 			buildPkgsKey: distroBuildPackageSet,
 			osPkgsKey:    vmdkCommonPackageSet,
 		},
+		defaultImageConfig: &distro.ImageConfig{
+			Locale: "en_US.UTF-8",
+		},
 		kernelOptions:       "ro net.ifnames=0",
 		bootable:            true,
 		defaultSize:         4 * GigaByte,
@@ -848,6 +856,9 @@ func newDistro(distroName string) distro.Distro {
 			buildPkgsKey: distroBuildPackageSet,
 			osPkgsKey:    openstackCommonPackageSet,
 		},
+		defaultImageConfig: &distro.ImageConfig{
+			Locale: "en_US.UTF-8",
+		},
 		kernelOptions:       "ro net.ifnames=0",
 		bootable:            true,
 		defaultSize:         4 * GigaByte,
@@ -860,6 +871,7 @@ func newDistro(distroName string) distro.Distro {
 
 	// default EC2 images config (common for all architectures)
 	defaultEc2ImageConfig := &distro.ImageConfig{
+		Locale:   "en_US.UTF-8",
 		Timezone: "UTC",
 		TimeSynchronization: &osbuild.ChronyStageOptions{
 			Servers: []osbuild.ChronyConfigServer{
diff --git a/internal/distro/rhel90/pipelines.go b/internal/distro/rhel90/pipelines.go
index c35b38fbb..578707994 100644
--- a/internal/distro/rhel90/pipelines.go
+++ b/internal/distro/rhel90/pipelines.go
@@ -795,7 +795,7 @@ func simplifiedInstallerTreePipeline(repos []rpmmd.RepoConfig, packages []rpmmd.
 	p.Build = "name:build"
 	p.AddStage(osbuild.NewRPMStage(rpmStageOptions(repos), osbuild.NewRpmStageSourceFilesInputs(packages)))
 	p.AddStage(osbuild.NewBuildstampStage(buildStampStageOptions(arch, product, osVersion, variant)))
-	p.AddStage(osbuild.NewLocaleStage(&osbuild.LocaleStageOptions{Language: "en_US.UTF-8"}))
+	p.AddStage(osbuild.NewLocaleStage(&osbuild.LocaleStageOptions{Language: "C.UTF-8"}))
 	dracutStageOptions := dracutStageOptions(kernelVer, arch, []string{
 		"coreos-installer",
 		"fdo",


Test patch:
diff --git a/test/data/manifests/centos_9-aarch64-edge_commit-boot.json b/test/data/manifests/centos_9-aarch64-edge_commit-boot.json
index bd265db53..9dd53a414 100644
--- a/test/data/manifests/centos_9-aarch64-edge_commit-boot.json
+++ b/test/data/manifests/centos_9-aarch64-edge_commit-boot.json
@@ -767,7 +767,7 @@
           {
             "type": "org.osbuild.locale",
             "options": {
-              "language": "en_US.UTF-8"
+              "language": "C.UTF-8"
             }
           },
           {
@@ -9028,7 +9028,7 @@
       "::1         localhost localhost.localdomain localhost6 localhost6.localdomain6"
     ],
     "locale": {
-      "LANG": "en_US.UTF-8"
+      "LANG": "C.UTF-8"
     },
     "machine-id": "",
     "os-release": {
diff --git a/test/data/manifests/centos_9-aarch64-edge_container-boot.json b/test/data/manifests/centos_9-aarch64-edge_container-boot.json
index 39ce9112a..8e3a0c642 100644
--- a/test/data/manifests/centos_9-aarch64-edge_container-boot.json
+++ b/test/data/manifests/centos_9-aarch64-edge_container-boot.json
@@ -767,7 +767,7 @@
           {
             "type": "org.osbuild.locale",
             "options": {
-              "language": "en_US.UTF-8"
+              "language": "C.UTF-8"
             }
           },
           {
diff --git a/test/data/manifests/centos_9-aarch64-image_installer-boot.json b/test/data/manifests/centos_9-aarch64-image_installer-boot.json
index 8d4034aba..2c2bb0fb3 100644
--- a/test/data/manifests/centos_9-aarch64-image_installer-boot.json
+++ b/test/data/manifests/centos_9-aarch64-image_installer-boot.json
@@ -918,7 +918,7 @@
           {
             "type": "org.osbuild.locale",
             "options": {
-              "language": "en_US.UTF-8"
+              "language": "C.UTF-8"
             }
           },
           {
diff --git a/test/data/manifests/centos_9-aarch64-qcow2-boot.json b/test/data/manifests/centos_9-aarch64-qcow2-boot.json
index 3d5f5ba53..38657ee20 100644
--- a/test/data/manifests/centos_9-aarch64-qcow2-boot.json
+++ b/test/data/manifests/centos_9-aarch64-qcow2-boot.json
@@ -828,7 +828,7 @@
           {
             "type": "org.osbuild.locale",
             "options": {
-              "language": "en_US.UTF-8"
+              "language": "C.UTF-8"
             }
           },
           {
@@ -9885,7 +9885,7 @@
       "type": "qcow2"
     },
     "locale": {
-      "LANG": "en_US.UTF-8"
+      "LANG": "C.UTF-8"
     },
     "machine-id": "",
     "modprobe": {
diff --git a/test/data/manifests/centos_9-aarch64-tar-boot.json b/test/data/manifests/centos_9-aarch64-tar-boot.json
index c8e85b33c..fdd49f289 100644
--- a/test/data/manifests/centos_9-aarch64-tar-boot.json
+++ b/test/data/manifests/centos_9-aarch64-tar-boot.json
@@ -565,7 +565,7 @@
           {
             "type": "org.osbuild.locale",
             "options": {
-              "language": "en_US.UTF-8"
+              "language": "C.UTF-8"
             }
           },
           {
@@ -5977,7 +5977,7 @@
       "::1         localhost localhost.localdomain localhost6 localhost6.localdomain6"
     ],
     "locale": {
-      "LANG": "en_US.UTF-8"
+      "LANG": "C.UTF-8"
     },
     "machine-id": "",
     "os-release": {
diff --git a/test/data/manifests/centos_9-ppc64le-qcow2-boot.json b/test/data/manifests/centos_9-ppc64le-qcow2-boot.json
index 984358002..22700bccf 100644
--- a/test/data/manifests/centos_9-ppc64le-qcow2-boot.json
+++ b/test/data/manifests/centos_9-ppc64le-qcow2-boot.json
@@ -890,7 +890,7 @@
           {
             "type": "org.osbuild.locale",
             "options": {
-              "language": "en_US.UTF-8"
+              "language": "C.UTF-8"
             }
           },
           {
@@ -10710,7 +10710,7 @@
       "type": "qcow2"
     },
     "locale": {
-      "LANG": "en_US.UTF-8"
+      "LANG": "C.UTF-8"
     },
     "machine-id": "",
     "modprobe": {
diff --git a/test/data/manifests/centos_9-ppc64le-tar-boot.json b/test/data/manifests/centos_9-ppc64le-tar-boot.json
index 57ff761fa..05ad5d446 100644
--- a/test/data/manifests/centos_9-ppc64le-tar-boot.json
+++ b/test/data/manifests/centos_9-ppc64le-tar-boot.json
@@ -578,7 +578,7 @@
           {
             "type": "org.osbuild.locale",
             "options": {
-              "language": "en_US.UTF-8"
+              "language": "C.UTF-8"
             }
           },
           {
@@ -6153,7 +6153,7 @@
       "::1         localhost localhost.localdomain localhost6 localhost6.localdomain6"
     ],
     "locale": {
-      "LANG": "en_US.UTF-8"
+      "LANG": "C.UTF-8"
     },
     "machine-id": "",
     "os-release": {
diff --git a/test/data/manifests/centos_9-s390x-qcow2-boot.json b/test/data/manifests/centos_9-s390x-qcow2-boot.json
index ff82b6d1a..bda4bf590 100644
--- a/test/data/manifests/centos_9-s390x-qcow2-boot.json
+++ b/test/data/manifests/centos_9-s390x-qcow2-boot.json
@@ -976,7 +976,7 @@
           {
             "type": "org.osbuild.locale",
             "options": {
-              "language": "en_US.UTF-8"
+              "language": "C.UTF-8"
             }
           },
           {
@@ -11718,7 +11718,7 @@
       "type": "qcow2"
     },
     "locale": {
-      "LANG": "en_US.UTF-8"
+      "LANG": "C.UTF-8"
     },
     "machine-id": "",
     "modprobe": {
diff --git a/test/data/manifests/centos_9-s390x-tar-boot.json b/test/data/manifests/centos_9-s390x-tar-boot.json
index be3813be7..2f85fa15f 100644
--- a/test/data/manifests/centos_9-s390x-tar-boot.json
+++ b/test/data/manifests/centos_9-s390x-tar-boot.json
@@ -679,7 +679,7 @@
           {
             "type": "org.osbuild.locale",
             "options": {
-              "language": "en_US.UTF-8"
+              "language": "C.UTF-8"
             }
           },
           {
@@ -7570,7 +7570,7 @@
       "::1         localhost localhost.localdomain localhost6 localhost6.localdomain6"
     ],
     "locale": {
-      "LANG": "en_US.UTF-8"
+      "LANG": "C.UTF-8"
     },
     "machine-id": "",
     "os-release": {
diff --git a/test/data/manifests/centos_9-x86_64-edge_commit-boot.json b/test/data/manifests/centos_9-x86_64-edge_commit-boot.json
index 1ab3f5fee..9607f113e 100644
--- a/test/data/manifests/centos_9-x86_64-edge_commit-boot.json
+++ b/test/data/manifests/centos_9-x86_64-edge_commit-boot.json
@@ -803,7 +803,7 @@
           {
             "type": "org.osbuild.locale",
             "options": {
-              "language": "en_US.UTF-8"
+              "language": "C.UTF-8"
             }
           },
           {
@@ -9401,7 +9401,7 @@
       "::1         localhost localhost.localdomain localhost6 localhost6.localdomain6"
     ],
     "locale": {
-      "LANG": "en_US.UTF-8"
+      "LANG": "C.UTF-8"
     },
     "machine-id": "",
     "os-release": {
diff --git a/test/data/manifests/centos_9-x86_64-edge_commit_rt-boot.json b/test/data/manifests/centos_9-x86_64-edge_commit_rt-boot.json
index f4b8a9e6d..78499a7cd 100644
--- a/test/data/manifests/centos_9-x86_64-edge_commit_rt-boot.json
+++ b/test/data/manifests/centos_9-x86_64-edge_commit_rt-boot.json
@@ -917,7 +917,7 @@
           {
             "type": "org.osbuild.locale",
             "options": {
-              "language": "en_US.UTF-8"
+              "language": "C.UTF-8"
             }
           },
           {
@@ -10655,7 +10655,7 @@
       "::1         localhost localhost.localdomain localhost6 localhost6.localdomain6"
     ],
     "locale": {
-      "LANG": "en_US.UTF-8"
+      "LANG": "C.UTF-8"
     },
     "machine-id": "",
     "os-release": {
diff --git a/test/data/manifests/centos_9-x86_64-edge_container-boot.json b/test/data/manifests/centos_9-x86_64-edge_container-boot.json
index b10f9cb42..9d792accf 100644
--- a/test/data/manifests/centos_9-x86_64-edge_container-boot.json
+++ b/test/data/manifests/centos_9-x86_64-edge_container-boot.json
@@ -803,7 +803,7 @@
           {
             "type": "org.osbuild.locale",
             "options": {
-              "language": "en_US.UTF-8"
+              "language": "C.UTF-8"
             }
           },
           {
diff --git a/test/data/manifests/centos_9-x86_64-image_installer-boot.json b/test/data/manifests/centos_9-x86_64-image_installer-boot.json
index 9c5af02b1..1904ce1df 100644
--- a/test/data/manifests/centos_9-x86_64-image_installer-boot.json
+++ b/test/data/manifests/centos_9-x86_64-image_installer-boot.json
@@ -941,7 +941,7 @@
           {
             "type": "org.osbuild.locale",
             "options": {
-              "language": "en_US.UTF-8"
+              "language": "C.UTF-8"
             }
           },
           {
diff --git a/test/data/manifests/centos_9-x86_64-qcow2-boot.json b/test/data/manifests/centos_9-x86_64-qcow2-boot.json
index e5d0eaab9..ee8cdc1a8 100644
--- a/test/data/manifests/centos_9-x86_64-qcow2-boot.json
+++ b/test/data/manifests/centos_9-x86_64-qcow2-boot.json
@@ -855,7 +855,7 @@
           {
             "type": "org.osbuild.locale",
             "options": {
-              "language": "en_US.UTF-8"
+              "language": "C.UTF-8"
             }
           },
           {
@@ -10156,7 +10156,7 @@
       "type": "qcow2"
     },
     "locale": {
-      "LANG": "en_US.UTF-8"
+      "LANG": "C.UTF-8"
     },
     "machine-id": "",
     "modprobe": {
diff --git a/test/data/manifests/centos_9-x86_64-tar-boot.json b/test/data/manifests/centos_9-x86_64-tar-boot.json
index 75d5f7392..58266025e 100644
--- a/test/data/manifests/centos_9-x86_64-tar-boot.json
+++ b/test/data/manifests/centos_9-x86_64-tar-boot.json
@@ -587,7 +587,7 @@
           {
             "type": "org.osbuild.locale",
             "options": {
-              "language": "en_US.UTF-8"
+              "language": "C.UTF-8"
             }
           },
           {
@@ -6181,7 +6181,7 @@
       "::1         localhost localhost.localdomain localhost6 localhost6.localdomain6"
     ],
     "locale": {
-      "LANG": "en_US.UTF-8"
+      "LANG": "C.UTF-8"
     },
     "machine-id": "",
     "os-release": {
diff --git a/test/data/manifests/rhel_90-aarch64-edge_commit-boot.json b/test/data/manifests/rhel_90-aarch64-edge_commit-boot.json
index 49ceecc5c..dcf3d12ea 100644
--- a/test/data/manifests/rhel_90-aarch64-edge_commit-boot.json
+++ b/test/data/manifests/rhel_90-aarch64-edge_commit-boot.json
@@ -763,7 +763,7 @@
           {
             "type": "org.osbuild.locale",
             "options": {
-              "language": "en_US.UTF-8"
+              "language": "C.UTF-8"
             }
           },
           {
@@ -8318,7 +8318,7 @@
       "::1         localhost localhost.localdomain localhost6 localhost6.localdomain6"
     ],
     "locale": {
-      "LANG": "en_US.UTF-8"
+      "LANG": "C.UTF-8"
     },
     "machine-id": "",
     "os-release": {
diff --git a/test/data/manifests/rhel_90-aarch64-edge_container-boot.json b/test/data/manifests/rhel_90-aarch64-edge_container-boot.json
index 1aee1463e..786c2ee5c 100644
--- a/test/data/manifests/rhel_90-aarch64-edge_container-boot.json
+++ b/test/data/manifests/rhel_90-aarch64-edge_container-boot.json
@@ -763,7 +763,7 @@
           {
             "type": "org.osbuild.locale",
             "options": {
-              "language": "en_US.UTF-8"
+              "language": "C.UTF-8"
             }
           },
           {
diff --git a/test/data/manifests/rhel_90-aarch64-image_installer-boot.json b/test/data/manifests/rhel_90-aarch64-image_installer-boot.json
index fc163f7c8..90461e372 100644
--- a/test/data/manifests/rhel_90-aarch64-image_installer-boot.json
+++ b/test/data/manifests/rhel_90-aarch64-image_installer-boot.json
@@ -927,7 +927,7 @@
           {
             "type": "org.osbuild.locale",
             "options": {
-              "language": "en_US.UTF-8"
+              "language": "C.UTF-8"
             }
           },
           {
diff --git a/test/data/manifests/rhel_90-aarch64-qcow2-boot.json b/test/data/manifests/rhel_90-aarch64-qcow2-boot.json
index 99f4eb66a..572db46de 100644
--- a/test/data/manifests/rhel_90-aarch64-qcow2-boot.json
+++ b/test/data/manifests/rhel_90-aarch64-qcow2-boot.json
@@ -843,7 +843,7 @@
           {
             "type": "org.osbuild.locale",
             "options": {
-              "language": "en_US.UTF-8"
+              "language": "C.UTF-8"
             }
           },
           {
@@ -9387,7 +9387,7 @@
       "type": "qcow2"
     },
     "locale": {
-      "LANG": "en_US.UTF-8"
+      "LANG": "C.UTF-8"
     },
     "machine-id": "",
     "modprobe": {
diff --git a/test/data/manifests/rhel_90-aarch64-tar-boot.json b/test/data/manifests/rhel_90-aarch64-tar-boot.json
index e2d04fd28..81a5144ff 100644
--- a/test/data/manifests/rhel_90-aarch64-tar-boot.json
+++ b/test/data/manifests/rhel_90-aarch64-tar-boot.json
@@ -562,7 +562,7 @@
           {
             "type": "org.osbuild.locale",
             "options": {
-              "language": "en_US.UTF-8"
+              "language": "C.UTF-8"
             }
           },
           {
@@ -5504,7 +5504,7 @@
       "::1         localhost localhost.localdomain localhost6 localhost6.localdomain6"
     ],
     "locale": {
-      "LANG": "en_US.UTF-8"
+      "LANG": "C.UTF-8"
     },
     "machine-id": "",
     "os-release": {
diff --git a/test/data/manifests/rhel_90-ppc64le-qcow2-boot.json b/test/data/manifests/rhel_90-ppc64le-qcow2-boot.json
index 488d1e63b..0f5873299 100644
--- a/test/data/manifests/rhel_90-ppc64le-qcow2-boot.json
+++ b/test/data/manifests/rhel_90-ppc64le-qcow2-boot.json
@@ -907,7 +907,7 @@
           {
             "type": "org.osbuild.locale",
             "options": {
-              "language": "en_US.UTF-8"
+              "language": "C.UTF-8"
             }
           },
           {
@@ -10176,7 +10176,7 @@
       "type": "qcow2"
     },
     "locale": {
-      "LANG": "en_US.UTF-8"
+      "LANG": "C.UTF-8"
     },
     "machine-id": "",
     "modprobe": {
diff --git a/test/data/manifests/rhel_90-ppc64le-tar-boot.json b/test/data/manifests/rhel_90-ppc64le-tar-boot.json
index c78f52fc6..920363e32 100644
--- a/test/data/manifests/rhel_90-ppc64le-tar-boot.json
+++ b/test/data/manifests/rhel_90-ppc64le-tar-boot.json
@@ -575,7 +575,7 @@
           {
             "type": "org.osbuild.locale",
             "options": {
-              "language": "en_US.UTF-8"
+              "language": "C.UTF-8"
             }
           },
           {
@@ -5667,7 +5667,7 @@
       "::1         localhost localhost.localdomain localhost6 localhost6.localdomain6"
     ],
     "locale": {
-      "LANG": "en_US.UTF-8"
+      "LANG": "C.UTF-8"
     },
     "machine-id": "",
     "os-release": {
diff --git a/test/data/manifests/rhel_90-s390x-qcow2-boot.json b/test/data/manifests/rhel_90-s390x-qcow2-boot.json
index 74eba0fe1..ae9bf8fbb 100644
--- a/test/data/manifests/rhel_90-s390x-qcow2-boot.json
+++ b/test/data/manifests/rhel_90-s390x-qcow2-boot.json
@@ -992,7 +992,7 @@
           {
             "type": "org.osbuild.locale",
             "options": {
-              "language": "en_US.UTF-8"
+              "language": "C.UTF-8"
             }
           },
           {
@@ -11085,7 +11085,7 @@
       "type": "qcow2"
     },
     "locale": {
-      "LANG": "en_US.UTF-8"
+      "LANG": "C.UTF-8"
     },
     "machine-id": "",
     "modprobe": {
diff --git a/test/data/manifests/rhel_90-s390x-tar-boot.json b/test/data/manifests/rhel_90-s390x-tar-boot.json
index 803068c96..fa159bf11 100644
--- a/test/data/manifests/rhel_90-s390x-tar-boot.json
+++ b/test/data/manifests/rhel_90-s390x-tar-boot.json
@@ -676,7 +676,7 @@
           {
             "type": "org.osbuild.locale",
             "options": {
-              "language": "en_US.UTF-8"
+              "language": "C.UTF-8"
             }
           },
           {
@@ -6983,7 +6983,7 @@
       "::1         localhost localhost.localdomain localhost6 localhost6.localdomain6"
     ],
     "locale": {
-      "LANG": "en_US.UTF-8"
+      "LANG": "C.UTF-8"
     },
     "machine-id": "",
     "os-release": {
diff --git a/test/data/manifests/rhel_90-x86_64-edge_commit-boot.json b/test/data/manifests/rhel_90-x86_64-edge_commit-boot.json
index 3cde49787..e9fb3243b 100644
--- a/test/data/manifests/rhel_90-x86_64-edge_commit-boot.json
+++ b/test/data/manifests/rhel_90-x86_64-edge_commit-boot.json
@@ -801,7 +801,7 @@
           {
             "type": "org.osbuild.locale",
             "options": {
-              "language": "en_US.UTF-8"
+              "language": "C.UTF-8"
             }
           },
           {
@@ -8665,7 +8665,7 @@
       "::1         localhost localhost.localdomain localhost6 localhost6.localdomain6"
     ],
     "locale": {
-      "LANG": "en_US.UTF-8"
+      "LANG": "C.UTF-8"
     },
     "machine-id": "",
     "os-release": {
diff --git a/test/data/manifests/rhel_90-x86_64-edge_commit_rt-boot.json b/test/data/manifests/rhel_90-x86_64-edge_commit_rt-boot.json
index cd7945c20..555a9999f 100644
--- a/test/data/manifests/rhel_90-x86_64-edge_commit_rt-boot.json
+++ b/test/data/manifests/rhel_90-x86_64-edge_commit_rt-boot.json
@@ -1000,7 +1000,7 @@
           {
             "type": "org.osbuild.locale",
             "options": {
-              "language": "en_US.UTF-8"
+              "language": "C.UTF-8"
             }
           },
           {
@@ -10711,7 +10711,7 @@
       "::1         localhost localhost.localdomain localhost6 localhost6.localdomain6"
     ],
     "locale": {
-      "LANG": "en_US.UTF-8"
+      "LANG": "C.UTF-8"
     },
     "machine-id": "",
     "os-release": {
diff --git a/test/data/manifests/rhel_90-x86_64-edge_container-boot.json b/test/data/manifests/rhel_90-x86_64-edge_container-boot.json
index 42d09e72e..67cde0030 100644
--- a/test/data/manifests/rhel_90-x86_64-edge_container-boot.json
+++ b/test/data/manifests/rhel_90-x86_64-edge_container-boot.json
@@ -791,7 +791,7 @@
           {
             "type": "org.osbuild.locale",
             "options": {
-              "language": "en_US.UTF-8"
+              "language": "C.UTF-8"
             }
           },
           {
diff --git a/test/data/manifests/rhel_90-x86_64-image_installer-boot.json b/test/data/manifests/rhel_90-x86_64-image_installer-boot.json
index 638476610..1974f4e06 100644
--- a/test/data/manifests/rhel_90-x86_64-image_installer-boot.json
+++ b/test/data/manifests/rhel_90-x86_64-image_installer-boot.json
@@ -943,7 +943,7 @@
           {
             "type": "org.osbuild.locale",
             "options": {
-              "language": "en_US.UTF-8"
+              "language": "C.UTF-8"
             }
           },
           {
diff --git a/test/data/manifests/rhel_90-x86_64-qcow2-boot.json b/test/data/manifests/rhel_90-x86_64-qcow2-boot.json
index 75e94aa2c..9da8f9af7 100644
--- a/test/data/manifests/rhel_90-x86_64-qcow2-boot.json
+++ b/test/data/manifests/rhel_90-x86_64-qcow2-boot.json
@@ -863,7 +863,7 @@
           {
             "type": "org.osbuild.locale",
             "options": {
-              "language": "en_US.UTF-8"
+              "language": "C.UTF-8"
             }
           },
           {
@@ -9644,7 +9644,7 @@
       "type": "qcow2"
     },
     "locale": {
-      "LANG": "en_US.UTF-8"
+      "LANG": "C.UTF-8"
     },
     "machine-id": "",
     "modprobe": {
diff --git a/test/data/manifests/rhel_90-x86_64-tar-boot.json b/test/data/manifests/rhel_90-x86_64-tar-boot.json
index 103352065..2585ff195 100644
--- a/test/data/manifests/rhel_90-x86_64-tar-boot.json
+++ b/test/data/manifests/rhel_90-x86_64-tar-boot.json
@@ -576,7 +576,7 @@
           {
             "type": "org.osbuild.locale",
             "options": {
-              "language": "en_US.UTF-8"
+              "language": "C.UTF-8"
             }
           },
           {
@@ -5686,7 +5686,7 @@
       "::1         localhost localhost.localdomain localhost6 localhost6.localdomain6"
     ],
     "locale": {
-      "LANG": "en_US.UTF-8"
+      "LANG": "C.UTF-8"
     },
     "machine-id": "",
     "os-release": {