Description of problem: A comment in /etc/hotplug/usb/libusbscanner says # If the scanner is "cold plugged," this event will likely occur # before the root filesystem is writeable, but no-one seems to # know how to fix that. What about the attached patch? It seems to work for me just fine. OTOH this may be only important when nobody is actually logged on a console but a scanner can be used by remote logins. Not a "normal" situation but not unheard of either. After a console login pam reapplies permission given in /etc/security/console.perms with a link which already exists. Version-Relesase number of selected component (if applicable): sane-backends-1.0.15-1.4
Created attachment 109454 [details] proposed patch to fix "no-one seems to know how" case
This sounds related to bug #142727
"Long, long time ago..." sane-backends-1.0.17-0.fc4.2 which includes your patch (thanks!) is building right now and should hit FC4 updates-testing shortly.