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Re: adding IDE Controller to RedHat 9 on i686



Alexander Povolotsky wrote:
Robert - in the case you've described - I understood - you've added both IDE controller and the hard disk drive - if I my understanding is correct -  how many IDE controllers you already had on your system before adding this one ? ... I presume you had two and were adding
3rd (see quote below) ...

Also Robert - could you please clarify (hopefully in gory details ;-) )
what steps you took " to justify a CDRW" ?
So, in general, does adding 3rd (any "supported") controller works with Red Hat 9 or not ?


Off this list I got the folowing response on that:

"Assuming that Linux supports (recognizes) the PCI controller (I don't know, but it should), its configured to be the tertiary controller (IO addresses, IRQ, possibly DMA) correctly, and either the kernel sees it, or you can configure the proper kernel parameters such that the kernel can use it, yes, theoretically, you can do this. You mught want to look at the Linux Boot Prompt HOWTO for the proper kernel parameters, if you find that you need them. Disk devices on the tertiary controller would be hde & hdf. Note that your mb BIOS won't see any drives on this controller in any event, so its completely up to Linux to recognize it and configure it properly."
Alex

Before we go any further, please realize that it has been a few years and I didn't keep a dairy. What I remember is:
o I bought a larger hard drive and my m/b BIOS couldn't access all of it
o Of the 4 choices -- new m/b, new BIOS, underutilize drive, add-in card -- the card seemed like the best choice.
o I plugged the card in, connected the new drive, booted from CD and installed RH7.3. The drive was at /dev/hde and all was well until the
first time I wanted to read or write a floppy disk. It was while booting Windows and Linux alternately that Something Bad happened and I wiped out the Windows drive. That was the end of Windows around here for a year or so. Happy Day!


So, I didn't do anything to it to make it work. It just worked, except for the floppy drive. The boot loader then was LILO, of course, and I would expect you to have a different experience with GRUB. (Not necessarily unpleasant, just different.)

Now for the gory details of justifying a CDRW. Forget my wife! I did, 23 years ago. In the time that I grew up, folks were a lot more frugal than they are now. I blow money all the time but I don't buy stuff just to be first on the block to have one.


Ed Wilts wrote:


On 10/31/04 00:02, Alexander Povolotsky wrote:


I have Linux Red Hat 9 on Pentium III PC (Dell Optiplex 110,  848
Mhz, 128 Mb of memory )running off the 8 Gb Disk Drive; there is also
small boot drive on that IDE controller.


I bought SIIG UltraATA 100 PCI Controller and 80 Gb Western Digital
IDE disk drive - how could I add this new controller with this new
disk drive and make existing Linux recognize this new drive as
additional disk space ?


Many UltraATA controllers appear to Linux as SCSI controllers since that's what the BIOS says. I had a Promise controller once and I had to tell the BIOS to boot off a SCSI disk if I wanted to boot from a disk plugged into the UltraATA controller.


Is SIIG UltraATA 100 PCI Controller supported by RedHat 9 ? If yes, do


I need to do something specific


It's probably supported. Plug it in and look in dmesg for /dev/sda devices. Do an fdisk /dev/sda and see if it sees your 80GB drive.


I also was told that tsome motherboards would not support more than
32 Gb drive - how could I check what my motherboard limit is?


Your system should not have this limit. If you're using LILO, you should switch to GRUB though. GRUB is the default for Red Hat Linux 9 so unless you changed it, you should be okay.



That's interesting. When I upgraded to RH7.3 I added a big drive to my ancient Iwill xa-100+ based machine using a Maxtor (rebranded Promise using PDC20267) ATA-100 card and drives showed up as /dev/hde thru /dev/hdh. Worked fine. What DID NOT WORK, however, was my floppy drive. That controller stomped all over it, forcing me to justify a CDRW. Sometimes, you just can't lose for winning! :-)



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