159 lines
5.1 KiB
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159 lines
5.1 KiB
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.. _build User VM from Clearlinux:
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Build a User VM from the Clear Linux OS
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#######################################
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This document builds on :ref:`getting_started`,
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and explains how to build a User VM from Clear Linux OS.
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Build User VM image from Clear Linux OS
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***************************************
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Follow these steps to build a User VM image from the Clear Linux OS:
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#. In Clear Linux OS, install ``ister`` (a template-based
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installer for Linux) included in the Clear Linux OS bundle
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``os-installer``.
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For more information about ``ister``,
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please visit https://github.com/bryteise/ister.
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.. code-block:: none
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$ sudo swupd bundle-add os-installer
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#. After installation is complete, use ``ister.py`` to
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generate the image for a User VM with the configuration in
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``uos-image.json``:
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.. code-block:: none
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$ cd ~
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$ sudo ister.py -t uos-image.json
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An example of the configuration file ``uos-image.json``:
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.. code-block:: none
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{
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"DestinationType" : "virtual",
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"PartitionLayout" : [ { "disk" : "uos.img",
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"partition" : 1,
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"size" : "512M",
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"type" : "EFI" },
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{ "disk" : "uos.img",
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"partition" : 2,
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"size" : "1G",
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"type" : "swap" },
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{ "disk" : "uos.img",
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"partition" : 3,
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"size" : "8G",
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"type" : "linux" } ],
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"FilesystemTypes" : [ { "disk" : "uos.img",
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"partition" : 1,
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"type" : "vfat" },
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{ "disk" : "uos.img",
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"partition" : 2,
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"type" : "swap" },
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{ "disk" : "uos.img",
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"partition" : 3,
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"type" : "ext4" } ],
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"PartitionMountPoints" : [ { "disk" : "uos.img",
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"partition" : 1,
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"mount" : "/boot" },
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{ "disk" : "uos.img",
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"partition" : 3,
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"mount" : "/" } ],
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"Version": "latest",
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"Bundles": ["bootloader",
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"editors",
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"kernel-iot-lts2018",
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"network-basic",
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"os-core-update",
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"os-core",
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"openssh-server",
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"sysadmin-basic"]
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}
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.. note::
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To generate the image with a specified version,
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please modify the ``"Version"`` argument,
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and we can set ``"Version": 26550`` instead of
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``"Version": "latest"`` for example.
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Here we will use ``"Version": 26550`` for example,
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and the User VM image called ``uos.img`` will be generated
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after successful installation. An example output log is:
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.. code-block:: none
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Reading configuration
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Validating configuration
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Creating virtual disk
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Creating partitions
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Mapping loop device
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Creating file systems
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Setting up mount points
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Starting swupd. May take several minutes
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Installing 9 bundles (and dependencies)...
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Verifying version 26550
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Downloading packs...
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Extracting emacs pack for version 26550
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Extracting vim pack for version 26550
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...
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Cleaning up
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Successful installation
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#. On your target device, boot the system and select "The ACRN Service OS", as shown below:
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.. code-block:: console
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:emphasize-lines: 1
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=> The ACRN Service OS
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Clear Linux OS for Intel Architecture (Clear-linux-iot-lts2018-4.19.0-19)
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Clear Linux OS for Intel Architecture (Clear-linux-iot-lts2018-sos-4.19.0-19)
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Clear Linux OS for Intel Architecture (Clear-linux-native.4.19.1-654)
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EFI Default Loader
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Reboot Into Firmware Interface
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Start the User VM
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*****************
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#. Mount the User VM image and check the User VM kernel:
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.. code-block:: none
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# losetup -r -f -P --show ~/uos.img
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# mount /dev/loop0p3 /mnt
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# ls -l /mnt/usr/lib/kernel/
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cmdline-4.19.0-26.iot-lts2018
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config-4.19.0-26.iot-lts2018
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default-iot-lts2018 -> org.clearlinux.iot-lts2018.4.19.0-26
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install.d
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org.clearlinux.iot-lts2018.4.19.0-26
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#. Adjust the ``/usr/share/acrn/samples/nuc/launch_uos.sh``
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script to match your installation.
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These are the couple of lines you need to modify:
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.. code-block:: none
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-s 3,virtio-blk,~/uos.img \
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-k /mnt/usr/lib/kernel/default-iot-lts2018 \
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.. note::
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User VM image ``uos.img`` is in the directory ``~/``
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and User VM kernel ``default-iot-lts2018`` is in ``/mnt/usr/lib/kernel/``.
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#. You are now all set to start the User OS (User VM):
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.. code-block:: none
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$ sudo /usr/share/acrn/samples/nuc/launch_uos.sh
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You are now watching the User OS booting up!
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