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scripts: aarch64: replace guestmount for image modification

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Replace the use of `guestmount and `guestunmount` with standard tools
(losetup, mount) to modify cloud disk image. This eliminates
dependency on guestmount which requires /dev/kvm and is not available
in MSHV root partition.

Signed-off-by: Aastha Rawat <aastharawat@microsoft.com>
This commit is contained in:
Aastha Rawat
2025-11-06 15:04:12 +00:00
committed by Bo Chen
parent e302d50b09
commit c4cce38631
3 changed files with 115 additions and 8 deletions
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9
scripts/run_integration_tests_aarch64.sh
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@@ -134,11 +134,12 @@ update_workloads() {
FOCAL_OS_RAW_IMAGE_UPDATE_KERNEL_NAME="focal-server-cloudimg-arm64-custom-20210929-0-update-kernel.raw"
cp "$WORKLOADS_DIR/$FOCAL_OS_RAW_IMAGE_NAME" "$WORKLOADS_DIR/$FOCAL_OS_RAW_IMAGE_UPDATE_KERNEL_NAME"
FOCAL_OS_RAW_IMAGE_UPDATE_KERNEL_ROOT_DIR="$WORKLOADS_DIR/focal-server-cloudimg-root"
NEW_KERNEL="$WORKLOADS_DIR/Image-arm64.gz"
DST_KERNEL_PATH="boot/vmlinuz"
mkdir -p "$FOCAL_OS_RAW_IMAGE_UPDATE_KERNEL_ROOT_DIR"
# Mount the 'raw' image, replace the compressed kernel file and umount the working folder
guestmount -a "$WORKLOADS_DIR/$FOCAL_OS_RAW_IMAGE_UPDATE_KERNEL_NAME" -m /dev/sda1 "$FOCAL_OS_RAW_IMAGE_UPDATE_KERNEL_ROOT_DIR" || exit 1
cp "$WORKLOADS_DIR"/Image-arm64.gz "$FOCAL_OS_RAW_IMAGE_UPDATE_KERNEL_ROOT_DIR"/boot/vmlinuz
guestunmount "$FOCAL_OS_RAW_IMAGE_UPDATE_KERNEL_ROOT_DIR"
IMG="$WORKLOADS_DIR/$FOCAL_OS_RAW_IMAGE_UPDATE_KERNEL_NAME"
# Mount image partition, copy kernel, and unmount
copy_to_image "$IMG" "$FOCAL_OS_RAW_IMAGE_UPDATE_KERNEL_ROOT_DIR" "$NEW_KERNEL" "$DST_KERNEL_PATH" || exit 1
# Build virtiofsd
build_virtiofsd