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Asked: 2020-05-28 10:45:33 +0800 CST

如何在 Ubuntu 20.04 自动服务器安装上自动安装配置“填充磁盘”选项？

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我正在尝试使用像这样的自动安装配置文件安装 20.04 ：

用户数据文件：

version: 1
identity:
    hostname: hostname
    username: username
    password: $crypted_pass

但是自动安装过程（将所有内容保留为默认值）不会对磁盘​​进行分区以使用所有空间，即使当我手动运行安装程序时这似乎是默认设置。

手动选择所有默认值后，我storage从/var/log/installer/autoinstall-user-data

  storage:
    config:
    - {ptable: gpt, serial: INTEL SSDPEKKF256G8L_BTHH85121P8H256B, wwn: eui.5cd2e42c81a42d1d,
      path: /dev/nvme0n1, wipe: superblock-recursive, preserve: false, name: '', grub_device: true,
      type: disk, id: disk-nvme0n1}
    - {device: disk-nvme0n1, size: 1048576, flag: bios_grub, number: 1, preserve: false,
      type: partition, id: partition-0}
    - {device: disk-nvme0n1, size: 256057016320, wipe: superblock, flag: '', number: 2,
      preserve: false, type: partition, id: partition-1}
    - {fstype: ext4, volume: partition-1, preserve: false, type: format, id: format-0}
    - {device: format-0, path: /, type: mount, id: mount-0}

但是，我不清楚从这里我需要在我的用户数据文件中包含什么才能选择“填充磁盘”选项？

system-installation partitioning cloud-init 20.04

2 个回答

  1. Best Answer

    我没有尝试过，但文档建议负值将“填充”。

    来源：https ://wiki.ubuntu.com/FoundationsTeam/AutomatedServerInstalls/ConfigReference#storage

    服务器安装程序允许将大小指定为包含设备的百分比。此外，可以为最终分区使用负大小，以指示该分区应使用所有剩余空间。

    编辑

    我试过了。用于size: -1最终分区确实填满了磁盘。我尝试使用LVM 逻辑卷来使用所有可用空间，但size: 100%它不起作用。安装程序在.size: -1align_downsubiquity/models/filesystem.py

    我也尝试过100%FREE，但subiquity出错了dehumanize_size

    我还尝试删除 size 属性，lvm_partition因为curtin文档说（在https://curtin.readthedocs.io/en/latest/topics/storage.html）

    如果省略 size 键，则 volgroup 上的所有剩余空间都将用于逻辑卷。

    如果没有属性，这不会作为subiquity错误起作用size

    这很不幸，因为对 LVM 卷使用百分比将是一个非常基本的用例

    我试过的完整存储配置。

      storage:
    grub:
      reorder_uefi: False
    swap:
      size: 0
    config:
    - {ptable: gpt, path: /dev/sda, preserve: false, name: '', grub_device: false,
      type: disk, id: disk-sda}
    - {device: disk-sda, size: 512M, wipe: superblock, flag: boot, number: 1,
      preserve: false, grub_device: true, type: partition, id: partition-sda1}
    - {fstype: fat32, volume: partition-sda1, preserve: false, type: format, id: format-2}
    - {device: disk-sda, size: 1G, wipe: superblock, flag: linux, number: 2,
      preserve: false, grub_device: false, type: partition, id: partition-sda2}
    - {fstype: ext4, volume: partition-sda2, preserve: false, type: format, id: format-0}
    - {device: disk-sda, size: -1, flag: linux, number: 3, preserve: false,
      grub_device: false, type: partition, id: partition-sda3}
    - name: vg-0
      devices: [partition-sda3]
      preserve: false
      type: lvm_volgroup
      id: lvm-volgroup-vg-0
    - {name: lv-root, volgroup: lvm-volgroup-vg-0, size: 100%, preserve: false,
      type: lvm_partition, id: lvm-partition-lv-root}
    - {fstype: ext4, volume: lvm-partition-lv-root, preserve: false, type: format,
      id: format-1}
    - {device: format-1, path: /, type: mount, id: mount-2}
    - {device: format-0, path: /boot, type: mount, id: mount-1}
    - {device: format-2, path: /boot/efi, type: mount, id: mount-3}

    编辑 2

    我一直在研究这个，似乎有时subiquity将磁盘大小存储为浮点数，这导致了未捕获的异常。我实际上能够通过不使用人类可读的格式来解决这个问题。例如，代替size: 512M, 使用size: 536870912.

    storage这是一个使用带有属性的自动填充选项的示例配置，size: -1还配置了一个逻辑卷以使用该属性填充卷组size: 100%

      storage:
    grub:
      reorder_uefi: False
    swap:
      size: 0
    config:
    - {ptable: gpt, path: /dev/sda, preserve: false, name: '', grub_device: false,
      type: disk, id: disk-sda}
    - {device: disk-sda, size: 536870912, wipe: superblock, flag: boot, number: 1,
      preserve: false, grub_device: true, type: partition, id: partition-sda1}
    - {fstype: fat32, volume: partition-sda1, preserve: false, type: format, id: format-2}
    - {device: disk-sda, size: 1073741824, wipe: superblock, flag: linux, number: 2,
      preserve: false, grub_device: false, type: partition, id: partition-sda2}
    - {fstype: ext4, volume: partition-sda2, preserve: false, type: format, id: format-0}
    - {device: disk-sda, size: -1, flag: linux, number: 3, preserve: false,
      grub_device: false, type: partition, id: partition-sda3}
    - name: vg-0
      devices: [partition-sda3]
      preserve: false
      type: lvm_volgroup
      id: lvm-volgroup-vg-0
    - {name: lv-root, volgroup: lvm-volgroup-vg-0, size: 100%, preserve: false,
      type: lvm_partition, id: lvm-partition-lv-root}
    - {fstype: ext4, volume: lvm-partition-lv-root, preserve: false, type: format,
      id: format-1}
    - {device: format-1, path: /, type: mount, id: mount-2}
    - {device: format-0, path: /boot, type: mount, id: mount-1}
    - {device: format-2, path: /boot/efi, type: mount, id: mount-3}

    看起来浮动错误可能已通过此提交修复，如果使用自动安装程序更新功能，可能会避免

    https://github.com/CanonicalLtd/subiquity/commit/8a84e470c59e292138482a0b1bd7144fbb4644db#diff-1ca44bce35f59e931cbe850119e630db

    • 6

  2. 负尺寸确实有效。第二个分区设置为大小 -1 并使用所有可用空间。

      storage:
    config:
    - grub_device: true
      id: disk-sda
      path: /dev/sda
      ptable: gpt
      type: disk
      wipe: superblock-recursive
    - device: disk-sda
      flag: bios_grub
      id: partition-0
      number: 1
      size: 1048576
      type: partition
    - device: disk-sda
      id: partition-1
      number: 2
      size: -1
      type: partition
      wipe: superblock
    - fstype: ext4
      id: format-0
      type: format
      volume: partition-1
    - device: format-0
      id: mount-0
      path: /
      type: mount
    • 2

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