Recognizing Drives

[Neil]

On Fri, Apr 4, 2008 at 8:35 PM, Joseph <ubuntu at e-pops.org> wrote:
> PEDRO MACANAS VALVERDE wrote:
>  > *De (From):*Joseph
>
>
> > *Enviado el (Send):* vie 04/04/2008 13:58
>  > *Para (To):* Ubuntu user technical support,not for general discussions
>  > *Asunto (Subject):* Re: Recognizing Drives
>  >
>  >  >> I think Linux desktops (freedesktops) would  use the message: "new
>  >  > hardware found" and use generic (or customized ) drivers.
>  >  >
>  >  > Regards.
>  >  >
>  >
>  >  >I've hooked up both the zip drive and a CD/DVD Burner and neither was
>  > recognized by Ubuntu...
>  >
>  > I am specially worried about the DVD burner. Do you have more CD/DVD
>  > units ?.  Can you include the make, model and port (USB, IDE...) of
>  > the disk (CD/DVD) units ?.
>  >
>  > Regards
>  >
>  > Pedro.
>  >
>
>
>
>  When you'd written this, it HIT me....    like a 2x4 right between the ears.
>
>  You'd asked "Do you have more CD/DVD units ?"  Well, yes I do.  I never had to be concerned about
>  setting DVD players.  Seemed they all turned out right just the way I put them in.  I did have
>  another one in there.  I pulled out both (when I was checking for the make/model) and as I was
>  looking them over, I realized they both had jumpers on them.  I tried them different ways and none
>  worked until I set the burner as master and the other one as slave....
>
>  The CD reader didn't like being master and the burner as slave....   but indeed they are both now
>  being read and working....   well, I haven't checked the burner yet, but the reader in it works.
>
>  You folks never cease to amaze me....    if you don't have an answer, you prod until I figure it
>  out, and that's good.
>
>  Thanks for everything so far....   I hope you all don't tire of my problems....   I am a novice to
>  the extreme at Linux.
>
>  Now if I can get the Zip Drive working.  Speaking of that, I am STILL looking for that x window....
>    <grin>
>
>

NEVER put a CD drive and a burner on the same IDE cable, if it is
possible to do otherwise.
There are several reasons:
On old burners it caused a buffer underun error when you opened the CD
tray while burning with th other drive. Bam, coaster CD. I do not know
wether this still applies, but better be safe than sorry.
If you are copying a disk your PC will have to do the following: read
from CD, store data, write to CD. If both drives are positioned on a
different IDE cable the OS can (but will only in an emergency) read
and write at the same time.
If you plan to expand your system with an extra hard drive (or already
have) you will put the harddrive on  the same IDE cable as the old
harddrive. This results in a slow system, when reading or writing on
both disks (such as moving data from disk to disk). This is because
the data must be read form disk one, stored and then written to disk
two. The buffer in harddisks is fast enough to fill the ATA 133 cable.
(this  doesn't really apply to CD's/DVD's, since they are dead slow)

It may seem a bit more convenient to have only one cable towards the
CD/DVD drives, but the results will bug you at the most irritating
time imaginable.

Neil

>
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