feat(vm): boot sandboxes from ext4 root disks#1263
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TaylorMutch
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Summary
Boot VM sandboxes from per-sandbox ext4 root disk images instead of exposing a prepared host rootfs directory to the guest.
Related Issue
N/A
Changes
rootfs.ext4images keyed by source image identity and rootfs layout version./sandboxownership inside guest filesystem metadata, and update VM docs/e2e notes.Testing
mise run pre-commitpassesmise run e2e:vmpassesChecklist