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#1331 applies rootfs.tmpfiles at build time only, on the premise that the root is read-only at runtime. /var/lib is a writable overlay, though, so systemd-tmpfiles-setup re-applies tpm2-tss-fapi.conf at every boot and the keystore comes back as 2775 tss:tss. Ship a boot-time entry that sorts before the package's and restores the image's mode. Signed-off-by: Kevin Wang <wy721@qq.com>
This was referenced Sep 25, 2026
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#1331 applies
rootfs.tmpfilesat build time only, assuming the root stays read-only at runtime./var/libis a writable overlay, though (dstack-volatile-binds.sh), sosystemd-tmpfiles-setupre-appliestpm2-tss-fapi.confon every boot and/var/lib/tpm2-tss/system/keystorecomes back as2775 tss:tssinstead of the image's0755 root:root, the package defaultrootfs.tmpfilesexists to override.Ship a boot-time entry for that one path that sorts before the package's file (the earliest file wins for a path). No other
rootfs.tmpfilesentry is on a writable overlay or conflicts with a package tmpfiles file.Found by the PR 841 acceptance suite (
tc-gos-platform-005).Verification
Rootless mkosi dev image on a TDX host, booted under dstack-vmm:
stat -c %a /var/lib/tpm2-tss/system/keystoreis2775on next and755with this change; the squashfs content is0755 0/0in both.