[K12OSN] CentOS + USB devices

[Marc Fromm]

On our working LTSP server the entry use-host-decl-names is commented
out in the dhcpd.conf file. I uncommented the entry on the LTSP server
that is not printing and set it to on. I then restarted dhcpd and cups,
but printing still does not work to a locally attached printer.

-----Original Message-----
From: k12osn-bounces at redhat.com [mailto:k12osn-bounces at redhat.com] On
Behalf Of Rob Owens
Sent: Friday, May 23, 2008 3:50 AM
To: Support list for open source software in schools.
Subject: Re: [K12OSN] CentOS + USB devices

On my system, I needed to set:

use-host-decl-names on;

in dhcpd.conf for the section where the printer-attached workstations 
reside.  Give that a try and restart dhcp.

-Rob

Marc Fromm wrote:
> All my systems have a DHCP reservation, as listed in the example
below.
> My setup is a frsh install of the latest K12LTSP CentOS 5 EL.
> Was there something to select during the install?
> vi dhcpd-k12ltsp.conf
> host finaid70 {
>                 hardware ethernet 00:B0:D0:C3:0C:A6;
>                 fixed-address 140.160.xxx.xxx;
>                 filename "/lts/pxe/pxelinux.0";
>         }
> 
> -----Original Message-----
> From: k12osn-bounces at redhat.com [mailto:k12osn-bounces at redhat.com] On
> Behalf Of David Hopkins
> Sent: Thursday, May 22, 2008 12:03 PM
> To: Support list for open source software in schools.
> Subject: Re: [K12OSN] CentOS + USB devices
> 
> On Thu, May 22, 2008 at 2:17 PM, Marc Fromm <Marc.Fromm at wwu.edu>
wrote:
>> I'm setting up a new k12ltsp server. Our current server (not setup by
>> me) has USB printer directly attached to a client and it is setup in
>> CUPS using Device URI socket://finaid76:9100 since that client is
> always
>> logged on with user account finaid76.
>>
>> The lts.conf file has an entry
>> [finaid76]
>>        PRINTER_0_DEVICE        =/dev/usb/lp0
>>        PRINTER_0_TYPE          = U
>>
>> Since there are no clear instructions with printers I am duplicating
>> configurations that currently work.
> 
> Ah ... a beginning point for printers is
> http://www.ltsp.org/twiki/bin/view/Ltsp/Printers
> 
> The 'trick' is that you need to add a DHCP reservation for each thin
> client that will have a printer attached to ensure that the thin
> client always has the same IP address and hostname.
> 
>> For USB thumb drives, what is the Fuse group?
> 
> In looking at the latest docs for ltsp on ltsp.org's wiki, it seems
> that this might not be needed.  but for my systems, I had to create a
> user group called fuse and add all my users to it so that the drives
> were automounted correctly. Since it worked, I've kept adding users to
> this group.
> 
> Fuse should be part of the main kernel now, but if not CentOS should
> be similar to
>
http://www.ltsp.org/twiki/bin/view/Ltsp/LtspFS#Installing_FUSE_on_Fedora
> _Core
> 
> Sincerely,
> Dave Hopkins
> 
>> -----Original Message-----
>> From: k12osn-bounces at redhat.com [mailto:k12osn-bounces at redhat.com] On
>> Behalf Of David Hopkins
>> Sent: Thursday, May 22, 2008 11:07 AM
>> To: Support list for open source software in schools.
>> Subject: Re: [K12OSN] CentOS + USB devices
>>
>>> Are the usb ports disabled on the client machines in k12ltsp CentOS?
>>> I have plugged in a usb thumb drive and a printer into a client and
>>> neither are detected. I plugged the same usb thumb drive into the
>> server
>>> box and it was detected.
>>>
>> They work for me, but users need to be in the Fuse group.
>>
>>> I added the printer using the CUPS web interface localhots:631.
>>> I used Device URI: socket://finaid70:9100
>> Is this correct? Isn't it socket://IP_address_thin_client:9100 or
>> socket://hostname_of_thin_client:9100 (which are typically
192.168.x.y
>> and ws###.ltsp for the base install).  We have 80+ printers connected
>> to thin clients and they work fine but we are using the parallel port
>> for the printers, not the usb port.
>>
>> Sincerely,
>> Dave Hopkins
>>
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