如何修复 Incus 错误：Failed detecting root disk device: No root device could be found

问题

当你尝试使用 Incus 启动容器时，你看到如下错误消息

incus_error.txt

Launching my-opensuse
Error: Failed instance creation: Failed creating instance record: Failed initializing instance: Invalid devices: Failed detecting root disk device: No root device could be found

Launching my-opensuse
Error: Failed instance creation: Failed creating instance record: Failed initializing instance: Invalid devices: Failed detecting root disk device: No root device could be found

解决方案

你使用 incus admin init 初始化了 Incus，它使用 btrfs 作为默认存储后端。虽然这对生产应用是合理的选择，但正确设置可能有点棘手，因为你需要手动配置 BTRFS 回环设备。

相反，我建议使用 dir 存储后端用于测试和轻度生产目的。

要使用 dir 存储后端重新初始化 Incus，运行以下命令：

reinit_incus_dir.sh

incus storage delete default
incus admin init --auto --storage-backend dir

incus storage delete default
incus admin init --auto --storage-backend dir

现在，重试运行 inucs launch ...，它应该按预期工作。

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