On 22 Feb, Terry Collins wrote:
> I have had problems with various no-name CDroms being recognised by
> Linux over the years, particularly with older HW (486 & Pentium mobo's).
> so you are not mad. The only solution I've found is to try another
> brand.
But wouldn't that be more deterministic, if that was the problem?
It seems to work fine until the first eject after booting up.
Ken Yap wrote:
> Master slave jumper settings on the CDROM? Win95/DOS tends to tolerate
> misconfigured jumpers better than Linux.
That's possible. I read this in the HOWTO:
> As explained in the file ide-cd, ATAPI CD-ROMS should be
> jumpered as "single" or "master", and not "slave" when only
> one IDE device is attached to an interface (although this
> restriction is no longer enforced with recent kernels).
Ah. And this bit in /usr/src/linux-2.2.16/Documentation/cdrom/ide-cd
sounds like it may be the problem:
> - Double-check your hardware configuration to make sure that the IRQ
> number of your IDE interface matches what the driver expects.
> [...]
> - Note that many MS-DOS CDROM drivers will still function even if
> there are hardware problems with the interrupt setup; they
> apparently don't use interrupts.
I think this line of investigation will bear fruit. Also, some
interesting stuff in /usr/src/linux-2.2.16/Documentation/ide.txt
(I didn't know that the new driver supported up to 6 IDE interfaces!
So that'd be up to 12 discs; at say 60Gb per disc, you could easily
have 0.7 terabytes on your desktop.)
luke
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