Re: UPDATE ON "WARNING ON RED HAT"
chris_at_nospam.com
Date: 04/13/04
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Date: Tue, 13 Apr 2004 05:24:11 GMT
>> All ide cd-rom drives should use the same driver.
>
>There are CDROM drives which have 16 bit drivers, others that have 32
>bit. Others have both. I've had SW aps that said "min requirements" right
>on the box for 32 bit CDROM drivers. Funny, nobody I ever asked about
>their CDROMs knew if their drivers were 16 or 32 bit. But the box said it
>on the outside. I know there are CDROM drives that have drivers for
>WindowsXX but not for linux, not for DOS. I know, from my work with OS/2
>Warp 3 and 4 that one OS, during installation, may recognize the CDROM
>drive or not recognize it (OS/2 also started running into hardware
>compatibility in the mid-late 1990s, so be warned). Its also a fact,
>because it comes up on the screen during the installation, that
>Windows98SE (full install), tries a total of five DIFFERENT CDROM drive
>software drivers! And, on the screen, it tells you which driver,
>manufacturer, and dates, etc., which CDROM driver it is trying. I've
>watched this happen and on different boxes, as soon as it finds a driver
>that works, then the motor starts running and the lights start blinking,
>and the data starts moving. Oh, yeah, they're all IDE CDROM drives.
>
>Also, on the RH EL floppy install boot disk AND on the separately
>rawritable block device disk and the rawritable driver disk, when you do
>the install "linux dd", and it asks you for the driver disk to be
>inserted, it gives you a list of all the CDROM drivers to try (yes, many
>of them).
>
>Now, above, you said "all CDROM drives should use the same driver." Would
>you care to modify your understanding of this situation?
99% of all IDE CD-Rom drives are ATAPI compliant and can use a generic
atapi-based driver. I believe some the very early 1x IDE units didn't
implement ATAPI properly and required drivers specific to that unit.
Windows 95/98/NT/2000/ME NTand 2000 all had a generic IDE cdrom
driver.
Do you have a model number of one of the cdroms that you can't install
RHEL from? I'm curious to look up it's vintage and see if it's atapi
compliant.
If I recall the W98 install (been awhile), it tries a handful of
non-IDE cdrom drivers during the boot process. The 16-bit issue was
for non-ide drives that needed drivers from the manufacturer. 16-bit
usually only support DOS or had issues supporting windows programs
running in 32-bit mode.
-Chris
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