rob fccf279262 slowdisk offload: fix EXDEV - extract statics via tar --transform, not through symlinks ...

tar cannot create files through a directory symlink whose target is on
another device: open() fails with 'Invalid cross-device link' even under
--keep-directory-symlink (reproduced, GNU tar 1.34 and 1.35). This killed
the katana->uk-4 provision (place-provision-katana-EU-NorthWest-p1) and
means the slowdisk EXTRACT path never worked on hosts with a separate
/slowdisk device. Rewrite member paths with --transform so tar writes
directly into /slowdisk/rpc_<key>__data_<rel>; the symlink stays for the
container's runtime view. Also aligns restore-volumes' nested-path target
naming to the double-underscore convention clone-backup already uses.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

2026-07-11 01:50:20 +00:00

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