24X CD-ROM Support for Linux

24X CD-ROM Support for Linux

Post by Mike Raede » Sat, 16 Oct 1999 04:00:00



Just a note to some poor soul who might want to install Linux on a laptop
that has a 24X CD-ROM.  I had tried to install pretty much every flavor of
linux on a CTX EzBook 700e recently, and found that the only way I could was
through brute force.  I "borrowed" a co-workers laptop, popped my hd in and
installed through there.  But, I still couldn't get the CD-ROM to work until
now.  COL 2.3 (which I just got yesterday), supports 24x CD-ROMs.

If anyone has this similar problem, or knows of another distribution that
will support machines with a 24x CD-ROM, please let me know.

Thanks,
Mike Raeder

 
 
 

24X CD-ROM Support for Linux

Post by Kenneth Crud » Tue, 19 Oct 1999 04:00:00




Quote:>Just a note to some poor soul who might want to install Linux on a laptop
>that has a 24X CD-ROM.

"A 24X CD-ROM" is as generic and as useless a desciption as "keyboard with
black paint on it".

Also, I've got a 24X CD-ROM (Teac CD-224E) that installed Linux just fine.

        -Kenny

--
Kenneth R. Crudup   Sr. SW Engineer, Scott County Consulting, Washington, D.C.
Home1: 8051 Newell St. #914     Silver Spring, MD 20910-0914    (301) 562-1922
Home2: 5355 Farwell Pl. #242    Fremont, CA 94536-7222          (510) 794-8040
Work:  19420 Homestead Road     Cupertino, CA 95014-0606        (408) 447-6654

 
 
 

24X CD-ROM Support for Linux

Post by Kenneth Crud » Tue, 19 Oct 1999 04:00:00




Quote:>Just a note to some poor soul who might want to install Linux on a laptop
>that has a 24X CD-ROM.

"A 24X CD-ROM" is as generic and as useless a desciption as "keyboard with
black paint on it".

Also, I've got a 24X CD-ROM (Teac CD-224E) that installed Linux just fine.

        -Kenny

--
Kenneth R. Crudup   Sr. SW Engineer, Scott County Consulting, Washington, D.C.
Home1: 8051 Newell St. #914     Silver Spring, MD 20910-0914    (301) 562-1922
Home2: 5355 Farwell Pl. #242    Fremont, CA 94536-7222          (510) 794-8040
Work:  19420 Homestead Road     Cupertino, CA 95014-0606        (408) 447-6654

 
 
 

1. Linux and 24x panasonic CD-ROM.

Hi,

Have any of you guys been working with the OEM Panasonic 24x CD-ROM (model
CR-585-B) or any other high speed drives flooding the market these days ?

I purchased one recently and tested out "running Linux directly" off the CD-ROM and the installation went quite smoothly. Somehow I felt that it wasn't
"blazing" fast enough (of course I am *not* expecting hard disk performance
or equivalent) but still it seemed only slightly faster that a 4x.

I also found some info (not relavant to Linux) when I called up panasonic
support. They told me that it is indeed a 24x cd-rom but they don't have
drivers ready yet (for win 95 or NT). The drive came shipped with a floppy
with dos based drivers that are also said to be compatible with the new DVD
drives.

Anyway, I tried the following to check its speed (courtesy CD-ROM HOWTO) :

# time -p dd if=/dev/cdrom of=/dev/null bs=1k count =15000

and it took a real time of 9 secs. That works to about 1666kb/sec and with
CD-ROM ratings of 150kb/sec = 1x this means I have a 11x drive ! This was
ofcourse the first time. The next time I tried, the real time was like
0.63 secs (due to caching I guess) and this doesn't make sense either
because now it is a 158x drive.

Now :
Assuming 11x is more realistic, is this all that the drive can be "pushed"
to ?

Or should I have to recompile a kernel with new settings (or something
like that) ?

Or is it just me :-)

I would appreciate your thoughts and insights.

Ramesh R. Rao

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