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MonstrofilandClaude Opus 5
1afd5dd2d2
It is the one file a stock flash cannot undo, and replacing it is what left
owners with a printer that would not print. A stock package restores the other
two paths the mod points at itself -- its run.sh copies its own firmwareExe and
start.sh over them, and busybox `cp -f` unlinks a symlink rather than writing
through it. It carries no klipperDaemon at all: not in the software component,
not in its md5sum.list, no line in run.sh. So the link outlived the mod, and
stock's start.sh, whose last line is
/usr/prog/klipper/klipperDaemon start
ran our shim, whose `start` does nothing on purpose. The UI came up, klippy did
not, and flashing stock again changed nothing because there was nothing in it
to change.
The shim guarded that same line: klippy is an s6-rc longrun here, and stock's
klipperDaemon forks a second, unsupervised one that fights it for /dev/ttyS4
and /tmp/uds. But no caller is left on a modded machine. Our own start.sh
replaces stock's and asks s6-rc; FlashForge's firmwareExe execs
/usr/prog/klipper/start.sh and names no other script (`strings` on their
binary); Moonraker runs with `provider: none`, so a restart from Mainsail goes
over the API rather than through a service script; ff-startup and S70klipper
drove it once and neither exists now. What remains is a person typing
`klipperDaemon start` over ssh, who gets FlashForge's behaviour and a second
klippy -- s6-rc and s6-svc are the supported way, and that trade buys back a
printer that can be returned to stock.
test_install.py asks the machine the inverted question now: klipperDaemon is
not a link into $MODDIR, it exists, and it is FlashForge's own script.
Printers that already took an earlier release still carry the link and cannot
be repaired from here -- nothing of ours runs during a stock flash. The
package at Klipper4FlashForge/stock-recovery puts their copy back.
Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>