Add test for partitioning with alternate sector size

parted will return an error code if the partition
table is not found, and will print the message:
"unrecognised disk label"

Signed-off-by: Julien Massot <julien.massot@collabora.com>

.github/workflows/ci.yaml

@@ -176,6 +176,10 @@ jobs:
             test: { name: "arch", case: "arch" }
           - backend: kvm
             test: { name: "apertis", case: "apertis" }
+          - backend: kvm
+            test: { name: "512 sector size GPT partition table", case: "partitioning-sector-size", variables: "-t sectorsize:512" }
+          - backend: kvm
+            test: { name: "4096 sector size GPT partition table", case: "partitioning-sector-size", variables: "-t sectorsize:4096" }
     name: ${{matrix.test.name}} on ${{matrix.backend}}
     runs-on: 'ubuntu-latest'
     steps:

tests/partitioning-sector-size/test.yaml

@@ -0,0 +1,23 @@
+{{ $sectorsize := or .sectorsize 512 }}
+architecture: amd64
+sectorsize: {{ $sectorsize }}
+actions:
+  - action: image-partition
+    description: Create a {{ $sectorsize }} sector size image
+    imagename: test.img
+    imagesize: 10M
+    partitiontype: gpt
+    partitions:
+      - name: system
+        fs: ext4
+        start: 2m
+        end: 100%
+#
+# Would more elegant to check the sector size with
+# sfdisk --sector-size {{ $sectorsize }} -J test.img | jq .partitiontable.sectorsize
+# once we have an updated sfdisk that supports this option see:
+# https://www.kernel.org/pub/linux/utils/util-linux/v2.41/v2.41-ReleaseNotes
+  - action: run
+    description: Print partition table
+    chroot: false
+    command: bash -c 'PARTED_SECTOR_SIZE={{ $sectorsize }} parted -s ${ARTIFACTDIR}/test.img print'