Recognizing Drives

[Neil]

On Thu, Apr 10, 2008 at 4:55 PM, Joseph <ubuntu at e-pops.org> wrote:
>
> Neil wrote:
>  > 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
>  >
>
>
>  Neil, is this just with Linux or  with Windows, too?  I ask because I've never had a problem with
>  them being on the same cable before....   in fact, so far I've not had a problem with these.

They are all hardware problems Therefore it doesn't matter wether it
is M$, Linux, Solaris or BSD. It may verry well be that newer burners
do not have this problem, I didn't test it. The speed issue is the
biggest problem usually. A IDE cable can supply only one HD at the
maximum speed of the HD.

Neil

>
>  I know I'm not into all the technical issues, but I rarely try to use both at once, except for
>  reading data on one and listening to music or something on the other....
>
>  I'll save this eMail for future reference just in case I get bugged too much.
>
>  Joseph
>
>
>
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>
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