wic-image-tpm: Add recipe to build wic image for rootfs wit tpm stuff.

wic is nice. Using the 'wic' executable to generate the rootfs is great but integrating the whole thing with bitbake is better. This is a simple example that creates a GPT partitioned disk that boots using grub-efi. The rootfs comes from from core-image-tpm with a kernel config to boot it readonly. There's a bit of swap space too (for whatever that's worth). Signed-off-by: Philip Tricca <[email protected]>
flihp · Mar 2, 2020 · ba36c92 · ba36c92
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diff --git a/recipes-tpm/images/wic-image-tpm.bb b/recipes-tpm/images/wic-image-tpm.bb
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+SUMMARY = "a bootable image with tpm stuff using wic"
+LICENSE = "MIT"
+LIC_FILES_CHKSUM = " \
+    file://${COMMON_LICENSE_DIR}/MIT;md5=0835ade698e0bcf8506ecda2f7b4f302 \
+    "
+
+require recipes-tpm/images/core-image-tpm.inc
+
+SRC_URI = "file://${FILE_DIRNAME}/${BPN}.wks.in"
+
+IMAGE_FSTYPES = "wic"
+
+WKS_FILE = "${BPN}.wks.in"
+WKS_FILE_DEPENDS = "dosfstools-native mtools-native gptfdisk-native"
+
+RDEPENDS_wic-image-tpm = "grub-efi"
+
+IMAGE_ROOTFS_EXTRA_SPACE = "2000"
diff --git a/recipes-tpm/images/wic-image-tpm.wks.in b/recipes-tpm/images/wic-image-tpm.wks.in
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+# Create EFI disk image with tpm stuff on readonly rootfs
+
+part /boot --source bootimg-efi --sourceparams="loader=grub-efi" --ondisk sda --label boot --active --align 1024
+part / --source rootfs --rootfs-dir=${BPN} --ondisk sda --fstype=ext4 --label rootfs --align 1024 --use-uuid
+part swap --ondisk sda --size 44 --label swap --fstype=swap
+
+bootloader --ptable gpt --timeout=5 --append="ro rootfstype=ext4 console=ttyS0,115200 console=tty0"