Missing module char-major-188

Nils Philippsen nphilipp at redhat.com
Tue Sep 30 14:23:30 UTC 2003

On Tue, 2003-09-30 at 15:56, Charles Curley wrote:
> On Tue, Sep 30, 2003 at 09:18:28AM +0200, Nils Philippsen wrote:
> > It's a pity that cups tries to randomly probe stuff like USB at all when
> > I only have one locally attached parallel printer. I finally filed a
> > separate report for it:
> > 
> > https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=105986
> I agree. I have no USB devices attached to my system, and no printers
> of any flavor. I had defined no printers at the time, and only looked
> into the problem when I had problems trying to use a network printer.
> However, it didn't take cups two whole minutes to decide it couldn't
> find the missing module.
> I took another look at my boot messages, and I see a lot of messages
> like:
> Sep 29 10:26:15 issola modprobe: modprobe: Can't locate module block-major-34
> with different numbers attached. What is "block-major-*"? Something
> the USB system generates as needed?

It means "something is accessing a block device with major number 34 and
I cannot associate any drivers with it" -- you can lookup known device
major/minor numbers in /usr/src/linux-2.4/Documentation/devices.txt. In
your case:

 34 char        Z8530 HDLC driver
                  0 = /dev/scc0         First Z8530, first port
    block       Fourth IDE hard disk/CD-ROM interface
                  0 = /dev/hdg          Master: whole disk (or CD-ROM)
                 64 = /dev/hdh          Slave: whole disk (or CD-ROM)
                Partitions are handled the same way as for the first
                interface (see major number 3).

> Nils, did you get your printer to work even with this problem?

Yes, no problem when cups is running.

     Nils Philippsen    /    Red Hat    /    nphilipp at redhat.com
"They that can give up essential liberty to obtain a little temporary
 safety deserve neither liberty nor safety."     -- B. Franklin, 1759
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