feat(plg): stage driver pre-reboot via Unraid os_update event#1
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Replace the per-boot-only download with an event/os_update hook that fires during an Unraid OS update, before the reboot prompt, and stages the rtw88 bundle matching the incoming kernel ($3) - so a reboot never lands on a kernel without a WiFi driver. Alerts if no build is published. Synchronous, so the update's reboot prompt only appears once WiFi is ready. Consumer of webgui os_update event (OS-486 / unraid/webgui#2683). On Unraid releases without the event there is no pre-reboot staging; the boot-time installer fetches the driver after reboot as before. Bump to 2026.06.27.3.
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Replaces the per-boot-only download with an
event/os_updatehook so the rtw88 driver for the incoming kernel is staged during an Unraid OS update, before the reboot prompt — so a reboot never lands on a kernel with no WiFi driver.How
&emhttp;/event/os_updatehook: stagesrtw88-<incoming-kernel>.tar.gz(from$3, falling back to parsing/boot/changes.txt), md5-verifies it, prints progress into the Update-OS dialog, and raises an Unraid alert if no build is published.pre-reboot-check.sh(never released).Dependency
Consumer of the generic
os_updateevent added in webgui — Linear OS-486, unraid/webgui#2683. On Unraid releases without that event there is no pre-reboot staging; the boot-time installer fetches the driver after reboot as before (accepted coverage gap for now).Test
xmllintclean;bash -nclean on all resolved blocks.$3empty → falls back tochanges.txt.