Hi,
I have finally solved the riddle of CDROM not working with MDK 8.1 after a
lot of blood and sweat.
The problem lies in the fact that the 2.4.8 kernel defaults to "Enable Multi
Mode by default" and this causes the cdrom driver to malfunction and the
system hangs. The solution was to recompile the kernel without Multi Mode by
default and now I can easily mount the CDROM.
Moral of the story according to me is (a) Intel 810 motherboards pose
challenging problems and (2) Mandrake guys need to be more conservative when
building their rpms and they should leave out a few of the experimental
stuff so that such problems do not arise.
Thanks to all those who responded, maybe someone from Mandrake too will read
this message.
Cheers,
Arnab
> ----------
> From: Arnab_Ganguly[SMTP:[EMAIL PROTECTED]]
> Reply To: [EMAIL PROTECTED]
> Sent: Tuesday, November 27, 2001 11:02 AM
> To: '[EMAIL PROTECTED]'
> Cc: 'Jose Luis Vazquez Gonzalez'; '[EMAIL PROTECTED]'
> Subject: RE: [expert] MDK 8.1 CD & FLOPPY cannot be mounted
>
> <<File: message.footer.txt>>
> Hi,
>
> I did some more research last night and the findings are:
>
> 1) There is no problem playing audio CDs no problems at all
>
> 2) While booting with the standard 2.4.8 MDK kernel that comes with
> MDK8.1,
> I get the message:
>
> hdd: ATAPI 40X CDROM
> hdd: set_drive_speed_status: status=0x51
> {DriveReadySeekCompleteError}
> hdd: set_drive_speed_status: error=0xb4
>
> 3) With devfsd mounted /dev/hdd is a link to
> /dev/ide/host0/bus1/target1/lun0/cd and this appears to be OK.
>
> 4) Without a CDROM in the drive, if I try mounting it says: No medium
> found
> which is OK, the same done with a CDROM in the drive causes the system to
> hang and I have to switch off the power to remedy things.
>
> 5) Most strangely when rebooting and during the Unmounting of file systems
> it says devfsd : Illegal seek. The same script run on MDK 8.0 causes no
> problem at all and this leads me to believe that there is some issue with
> devfsd and the cdrom driver used for 8.1.
>
> 6) The same problems occur if I use a standard 2.4.13 kernel. These
> problems vanish if I use the 2.4.3 MDK kernel. Is the older kernel better
> then?
>
> 7) Other details:
>
> /etc/fstab entry for cdrom /dev/hdd /mnt/cdrom fs=iso9660 ro etc.
> /dev/hdd address is 0x170 on IRQ 15 (Set as slave on second ide)
> BIOS setting for ide1 is DMA
>
> 8) I tried using append="hdd=noprobe hdd=cdrom" but that does not help.
>
> Any help with this information available would be great as I really want
> to
> use MDK 8.1 but cannot use it if it does not support the CDROM.
>
> Thanks,
> Arnab
> > --------
> > From: Jose Luis Vazquez Gonzalez[SMTP:[EMAIL PROTECTED]]
> > Sent: Tuesday, November 27, 2001 3:49 AM
> > To: [EMAIL PROTECTED]; Arnab_Ganguly;
> > '[EMAIL PROTECTED]'
> > Cc: '[EMAIL PROTECTED]'
> > Subject: Re: [expert] MDK 8.1 CD & FLOPPY cannot be mounted
> >
> > Just to try...
> >
> > Is the kernel 2.4.13 from Mandrake or from www.kernel.org?
> >
> > Is it possible they (Mandrake) made a mistake while preparing the kernel
> > for
> > MDK 8.1?
> >
> > My MDK 2.4.13 kernel is working fine with the CD but I remember I had a
> > weird
> > mouse problem with mdk kernels that didn't appear in the default
> > kernel.org
> > version. (I didn't try to enable USB support and devfsd on the
> kernel.org,
> > on
> > the other hand....)
> >
> > Jose
> >
> > El Lunes 26 Noviembre 2001 13:12, Arnab_Ganguly escribió:
> > > Jun,
> > >
> > > I do not have the file with me here at work, but can tell you that it
> is
> > > the default fstab I have not changed a single character!
> > >
> > > And the same fstab works with the 2.4.3 kernel taken from MDK 8.0
> > strange
> > > isn't it. I will post my fstab later tonight.
> > >
> > > Arnab
> > >
> > > > ----------
> > > > From: Jun Liu[SMTP:[EMAIL PROTECTED]]
> > > > Reply To: [EMAIL PROTECTED]
> > > > Sent: Monday, November 26, 2001 5:36 PM
> > > > To: [EMAIL PROTECTED]
> > > > Subject: Re: [expert] MDK 8.1 CD & FLOPPY cannot be mounted
> > > >
> > > > <<File: message.footer.txt>>
> > > > both floppy and cdrom drivers are working great here,
> > > > post your /etc/fstab here, let us check if everything is all right,
> :)
> > > >
> > > > /Jun
> > > >
> > > > On Mon, Nov 26, 2001 at 04:54:36PM +0530, Arnab_Ganguly wrote:
> > > > :Hi Experts!
> > > > :
> > > > :I have a question that I would love to have answered, indeed I have
> > > > : spent more than 20 hours trying to figure out the answer,
> > but...could
> > > > : not
> > > >
> > > > answer
> > > >
> > > > :it. I had posted to this list earlier, but at that time I had not
> put
> > in
> > > >
> > > > the
> > > >
> > > > :hard work.
> > > > :
> > > > :Background: I upgraded from MDK 8.0 to 8.1 a few days ago thinking
> > that
> > > >
> > > > 8.1
> > > >
> > > > :was going to be very good. Hardware Intel Celeron, Intel 810 board,
> > 128M
> > > > :RAM. ATAPI CD-Drive (/dev/hdd), IDE hard disk (/dev/hda).
> Everything
> > > >
> > > > working
> > > >
> > > > :perfectly on MDK8.0 both with devfsd and without devfsd.
> > > > :
> > > > :Result : Now with MDK 8.1 in place I cannot mount the floppy or the
> > > >
> > > > CDROM.
> > > >
> > > > :When I try mounting it says /dev/fd0 is not a block device. I was
> > able
> > > > : to solve this by appending "nobiospnp" to the kernel boot
> parameter.
> > > > :
> > > > :The CDROM IA A VERY DIFFERENT STORY. The system hangs when I try
> > > > : mounting the cdrom. To try and solve this problem, I downloaded
> the
> > > > : latest 2.4.13 kernel (from kernel.org) and recompiled with devfsd,
> > > > : installed devfsd, downloaded a bootscript for devfsd
> initialization
> > > > : etc, but the problem
> > > >
> > > > still
> > > >
> > > > :remains the same-- no CDROM! I always get a "drive seek error" for
> > > >
> > > > /dev/hdd
> > > >
> > > > :(my CDROM) while booting either with 2.4.8 or 2.4.13 kernel.
> > > > :
> > > > :Interestingly CDROM and FLOPPYT work OK with the 2.4.3 kernel +
> > devfsd +
> > > > :script if I forcibly install (rpm -ivh --force kernel-2.4.3.mdk)but
> > this
> > > > :breaks the tempfs and a couple of other things.
> > > > :
> > > > :Is there a major bug in MDK 8.1 that prevents users from using the
> > > > : CDROM?
> > > >
> > > > Is
> > > >
> > > > :there a fix that can be simply done? Or is one to forcibly install
> > the
> > > > :kernel supplied with MDK 8.0 and then recompile for tempfs support
> > etc.
> > > > :
> > > > :If anyone can show me some clean way of solving the problem
> (without
> > > > : this forced old kernel install from MDK 8.0 etc)or at least tell
> me
> > the
> > > > : fixed software to download etc. it would be a great help and I
> would
> > > > : consider
> > > >
> > > > my
> > > >
> > > > :20 hours spent on MDK 8.1 as a gain. My e-mail address is
> > > > :[EMAIL PROTECTED]
> > > > :
> > > > :Thanks,
> > > > :Arnab
> > > > :
> > > > :
> > > >
> >
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