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9a389ae535
mkosi switch to the newer -blockdev qemu option in systemd/mkosi#3557 [1], but cache=unsafe is an option only -drive supports. Since the qemu-system_x86-64 man page [2] says this, cache.writeback=on is the default and mkosi setting the other two options to the values corresponding to unsafe, it should be fine to drop the cache=unsafe option. ┌─────────────┬─────────────────┬──────────────┬────────────────┐ │ │ cache.writeback │ cache.direct │ cache.no-flush │ ├─────────────┼─────────────────┼──────────────┼────────────────┤ │writeback │ on │ off │ off │ ├─────────────┼─────────────────┼──────────────┼────────────────┤ │none │ on │ on │ off │ ├─────────────┼─────────────────┼──────────────┼────────────────┤ │writethrough │ off │ off │ off │ ├─────────────┼─────────────────┼──────────────┼────────────────┤ │directsync │ off │ on │ off │ ├─────────────┼─────────────────┼──────────────┼────────────────┤ │unsafe │ on │ off │ on │ └─────────────┴─────────────────┴──────────────┴────────────────┘ [1] https://github.com/systemd/mkosi/pull/3557 [2] https://manpages.ubuntu.com/manpages/noble/en/man1/qemu-system-x86_64.1.html (cherry picked from commit 759fdb3a35f96906de471b2c6c2bc2864dc25564)