/dev/lp0 not detected in redhat 6.1

/dev/lp0 not detected in redhat 6.1

Post by Frans A. van der Hoor » Sun, 31 Dec 1899 09:00:00



Hi,
I have just upgraded from redHat 6 to 6.1 (in fact I had to re-install:
the upgrade option didn't detect my previous installation?!) and now
when using the printer tool to add a HP laserjet 6P, I get the error
mesage that /dev/lp0, /dev/lp1 and /dev/lp2 are not detected (LPT1 was
detcted just fine under Redhat 6.0 as /dev/lp0).
In /proc/devices the "lp" is not loaded, but insmod tells me that lp.o
is there.

How can I force the system to activate lp, and /dev/lp0?
(note: priniting works just fine under OS/2 and w98 on the same machine,
and in BIOS plug-and-play is disabled: LPT1 is referred to as I/O 378,
irq 7).
Thanks for any help.
Frans

  fvdhoorn.vcf
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/dev/lp0 not detected in redhat 6.1

Post by John Wunderlic » Sun, 31 Dec 1899 09:00:00


Hi;

I just had the same problem and someone from this list pointed me in the
right direction. I added:

alias parport_lowlevel parport_pc

to my /etc/conf.modules and then the autodetect worked fine.

John


Quote:> Hi,
> I have just upgraded from redHat 6 to 6.1 (in fact I had to re-install:
> the upgrade option didn't detect my previous installation?!) and now
> when using the printer tool to add a HP laserjet 6P, I get the error
> mesage that /dev/lp0, /dev/lp1 and /dev/lp2 are not detected (LPT1 was
> detcted just fine under Redhat 6.0 as /dev/lp0).
> In /proc/devices the "lp" is not loaded, but insmod tells me that lp.o
> is there.

> How can I force the system to activate lp, and /dev/lp0?
> (note: priniting works just fine under OS/2 and w98 on the same machine,
> and in BIOS plug-and-play is disabled: LPT1 is referred to as I/O 378,
> irq 7).
> Thanks for any help.
> Frans


 
 
 

/dev/lp0 not detected in redhat 6.1

Post by Hal Burgi » Sun, 31 Dec 1899 09:00:00


On Wed, 17 Nov 1999 22:42:33 +0000, Frans A. van der Hoorn


>I have just upgraded from redHat 6 to 6.1 (in fact I had to re-install:
>the upgrade option didn't detect my previous installation?!) and now
>when using the printer tool to add a HP laserjet 6P, I get the error
>mesage that /dev/lp0, /dev/lp1 and /dev/lp2 are not detected (LPT1 was
>detcted just fine under Redhat 6.0 as /dev/lp0).  In /proc/devices the
>"lp" is not loaded, but insmod tells me that lp.o is there.

>How can I force the system to activate lp, and /dev/lp0?  (note:
>priniting works just fine under OS/2 and w98 on the same machine, and
>in BIOS plug-and-play is disabled: LPT1 is referred to as I/O 378, irq
>7).

You need

 alias parport_lowlevel parport_pc

in /etc/conf.modules, then reboot, and run 'printtool'. This seems to do
the trick for most.

--
Hal B

--
            Linux helps those who help themselves

 
 
 

1. /dev/lp0 works fine in redhat 6.1, but now the queue has become evil..

*** Warning: Major boring technodweeb HP700 series owner's territory
ahead. Save yourself while you can and skip to the next post unless
you've got a working hp700 series printer using T Norman's PPA protocol
converter. ***

------------------------ the thin red
line-------------------------------------

I've noticed some posts about /dev/lp0 not functioning, and when I
upgraded from rh5.2 -> 6.1, mine didn't work until I dl'd kernel 2.2.13
and rebuilt the kernel to load modules parport.o and parport_pc.o. With
that out of the way, I installed the latest version of the ppa
(hp700,800 series ppa printers) code contributed by Tim N. and created
two command files.

The first lpa (print an ascii file) to /dev/lp0 and the second lpp
(print a postscript file) to /dev/lp0 both work fine. Then I tried the
printool and the hp700 series showed up and I inserted the ghostscript
--pp..... - - filter option at the end as I'd had it working before and
here's what happens..

1) the queue is named lp. (the default) so -- I do: lpr
testasciifile.txt.
2) an lpq shows that the queue is printing and the job is in there..
3) an lpc status lp shows that everything is pretty much where it should
be.
4) it's all a damned lie because it's not printing.

          so................ I looked all  over , deleted all the spool
dir files and lock files, removed the queue, emptied /etc/printcap, and
made it again and it happened again, so I read a few readme's and
howto's and learned nothing of use. Then I happened to do a df -v and
realized that I was about a gig shorter than a few minutes ago so I did
a find on huge files and found about oh ...... 25 or 30,  34mb files in
the /tmp dir all called lplsdkflk.jYU.,yueu or some such thing. In fact,
I got another one with each print.

         I RTFM, the readme's , the howto's,  the should's and searched
deja news. I know it's some stupid simple insipid thing that'll make me
feel like a weasel when it's found or told me but at this point, I'd
love to be told.

       does any of this make sense to you folks?

                     tia,

             Mick

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