[GLLUG] Recompiling problem

[Matt Graham]

On Friday 23 August 2002 13:17, after a long battle with technology, 
Michael Harrington wrote:
> ok output of ls -l /dev/cdrom:
> /dev/cdrom -> /dev/hdb

/dev/hdb is an IDE device.  That means you need IDE CD-ROM support 
compiled into the kernel or as a module.

> output of grep cdrom /etc/fstab
> /dev/cdrom /mnt/cdrom  iso9600 noauto,owner,kudzu,ro,0,0

Fair enough.

> lsmod:
> ext3 jdb md usb-ohci usbcore

That's it?  What'd you do, compile everything (network card module, FAT 
filesystems, sound support...) in statically?  While this will work, it 
is not recommended, since this approach makes it difficult to diagnose 
and fix problems.  Changing parameters on things that are statically 
built typically requires a recompile/re-LILO/reboot, while changing 
parameters on things built as modules requires "rmmod FOO ; modprobe 
FOO parameter=somethingelse"--much quicker.  The Zaurus doesn't even 
use a completely static kernel.

> also trying 'mount -t iso9660 /dev/hbd /mnt/cdrom' also gives me a
> block error.

/dev/hbd does not exist in a typical system, unless you did something 
with mknod.  (Check yuor messages carefuly for tyops.)

OK, since the module ide-cd is not loaded, try to modprobe it.  If it 
doesn't exist, you'll need to at least go to /usr/src/linux , make 
menuconfig , set "IDE CD-ROM support" to "M", make modules && make 
modules_install && depmod -a .  *Then* you should be able to modprobe 
ide-cd and have things work.

If this device is a CD-RW, the only way you'll get the full monty out of 
it is to set it up as an IDE-SCSI device.  Post again if that's the 
case, or go to http://groups.google.com/advanced_group_search and 
search comp.os.linux.hardware for keywords "CD-RW howto".

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