Invoke bg-update via bash so bookworm noexec on runtime tmpfs does not block updates#7
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Bookworm defaults the runtime tmpfs to noexec, so systemd-run cannot execute the staged copy of bg-update.sh on the 2025 Pi-OS fleet. Invoke via bash so noexec does not block; the script only needs to be readable. Bullseye unaffected.
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On bookworm (Debian 12, the current and 2025 Pi-OS-based feeder image base), the runtime tmpfs is mounted noexec by default.
run-update.shcopies bg-update.sh to that tmpfs and asks systemd-run to execute it directly, which fails withPermission denied— the Update Feeder button is unusable on the entire bookworm-based fleet.Invoke bg-update.sh via bash so the noexec mount option does not apply; the script only needs to be readable. Bullseye is unaffected (its runtime tmpfs is exec-allowed by default).
Reproduced on a 2025 image; same flow runs cleanly on a bullseye 2023 image.