Re: /dev/lp0: cannot create error

From: Bill Vermillion (bv_at_wjv.com)
Date: 10/18/05 

Date: Tue, 18 Oct 2005 11:05:01 GMT

In article <dj2eia$q2b$1@nwrdmz02.dmz.ncs.ea.ibs-infra.bt.com>,
Ian Wilson <scobloke2@infotop.co.uk> wrote:
>Gregg P. wrote:
>> Hello,
>> I have a problem on a SCO box;
>
>SCO has sold many different operating systems - Which one?
>uname -a
>
>> it suddenly stopped printing and gets an
>> error when I try to send something to
>> /dev/lp0 ( /dev/lp0: cannot create).
>
>Presumably there is no /dev/lp0 device?
>ls -l /dev/lp0
>
>> I have verified that the printer and
>> cables work;
>
>How?
>
>> I tried to remove and recreate the
>> parallel device using 'mkdev parallel'; still a no go.
>
>Any error messages?
>Any devices created in /dev?
>
>> I was also wondering how I can tell if the parallel device is really being
>> added to the kernel.
>
>on OSR5:
>grep parallel /usr/adm/messages
>%parallel 0x03BC-0x03BE 7 - unit=0
>You'll get one such line for each reboot.
>
>> When I do a 'hwconfig' I DON'T see a parallel device.
>> Any help is very much appreciated.

>It is possibly to destroy parallel ports by plugging in the cable
>without powering down both server and printer first. I've done this
>exactly once :-)

Actually you should have no problem at all >IF< the printer is
unplugged from the power circuits. Damned ground loops just love
to eat chips for breakfast.

Bill 

-- 
Bill Vermillion - bv @ wjv . com