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Ubuntu 12.10 seems to have changed some peripheral security defaults
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Reece Arnott  
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 More options Nov 9 2012, 1:07 am
From: Reece Arnott <reece.arn...@gmail.com>
Date: Fri, 09 Nov 2012 19:07:46 +1300
Local: Fri, Nov 9 2012 1:07 am
Subject: Ubuntu 12.10 seems to have changed some peripheral security defaults
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I tried to connect my new Ubuntu 12.10 to my Makerbot 3D printer (using
ReplicatorG version 25) and it couldn't find the printer which was
connected to /dev/ttyUSB0. Running it as sudo worked so I thought it was
a security issue.

ls -l /dev/ttyUSB0 gave the following:
crw-rw---- 1 root dialout 188, 0 Nov  9 19:05 /dev/ttyUSB0

So, in the end all it took was adding my user to the dialout group:
"sudo adduser reece dialout" but the catch was that it didn't appear to
work initially, only *after* a reboot.

I don't recall that I had to do this when my laptop was Ubuntu 12.04 so
be aware that there may be subtle differences in default settings.

--
Reece Arnott
Dunedin
New Zealand


 
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