Use commit SHA for partition UUIDs

Signed-off-by: Pawel Langowski <pawel.langowski@3mdeb.com>
Dasharo · Feb 24, 2025 · 6e7a12c · 6e7a12c
1 parent 378ab27
commit 6e7a12c
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Showing 2 changed files with 13 additions and 2 deletions.
diff --git a/meta-dts-distro/recipes-dts/images/dts-base-image.inc b/meta-dts-distro/recipes-dts/images/dts-base-image.inc
@@ -21,6 +21,17 @@ IMAGE_INSTALL:append = " \
     lshw \
 "
 
+LAYER_COMMIT_SHA := "$(cd ${LAYERDIR} && git rev-parse HEAD)"
+
+BOOT_UUID="${@get_uuid('boot' + d.getVar('LAYER_COMMIT_SHA'))}"
+ROOT_UUID="${@get_uuid('root' + d.getVar('LAYER_COMMIT_SHA'))}"
+
+def get_uuid(string):
+    import hashlib, uuid
+    return str(uuid.UUID(hashlib.md5(string.encode()).hexdigest()))
+
+WICVARS:append = "ROOT_UUID BOOT_UUID"
+
 # Enable local auto-login of the root user (local = serial port and
 # virtual console)
 DTS_LOCAL_GETTY ?= " \

diff --git a/meta-dts-distro/wic/usb-stick-dts.wks.in b/meta-dts-distro/wic/usb-stick-dts.wks.in
@@ -1,4 +1,4 @@
 bootloader --timeout=0 --append=" rootwait"
 
-part /boot --source bootimg-biosplusefi --sourceparams="loader=grub-efi" --ondisk sda --label dts-boot --align 1024 --use-uuid --active --system-id 0xef
-part /     --source rootfs --fstype=ext4                                 --ondisk sda --label dts-root --align 1024 --use-uuid --fixed-size 1024
+part /boot --source bootimg-biosplusefi --sourceparams="loader=grub-efi" --ondisk sda --label dts-boot --align 1024 --uuid ${BOOT_UUID} --active --system-id 0xef
+part /     --source rootfs --fstype=ext4                                 --ondisk sda --label dts-root --align 1024 --uuid ${ROOT_UUID} --fixed-size 1024