LXer: Writing UDEV rules to get a SCSI scanner working on Ubuntu

LXer · 08-16-2009, 12:12 AM

Published at LXer:

I've been setting up some Ubuntu Jaunty systems for relatives as an excuse to get rid of a lot of old hardware including some SCSI scanners. I encountered an HP scanner that was supported by sane but not recognized by Ubuntu. The device ended up with the wrong permissions preventing anyone except root from scanning. This is an explanation of how to create a udev rule to automatically fix this type of problem.

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momist · 09-15-2009, 11:15 AM

Thanks LXer, I've been looking for the "right" way to solve this for my Epson GT-7000 scanner in Jaunty. It used to work in Intrepid, but the rules have moved. Most rules are now in /lib/udev/rules.d, but I made a new rule 45-scsi-scanner.rules in /etc/udev/rules.d. This works OK.

My problem now is that the system can't find the scanner unless it was switched on at boot time, if not, I still have to reboot for it to be found. Anyone know a way around this?