Multiple Ultra66 controllers

Multiple Ultra66 controllers

Post by Peter Brueleman » Fri, 21 Apr 2000 04:00:00

Is it possible to use 2 Promise Ultra66 controllers in one system?

I want to set up a system with 4 15GB disks in RAID 5 (software raid).

The software raid howto says that it's not a good idea to put 2 disks on
the same IDE-bus.  That's why i need to use 2 controllers.


Multiple Ultra66 controllers

Post by LhD Administrato » Fri, 21 Apr 2000 04:00:00

Quote:> Is it possible to use 2 Promise Ultra66 controllers in one system?

Yes, although why not just use SCSI if you care about performance and

LhD Administrator
Linux Hardware Database

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Before you buy.


1. Request for help: Booting from Promise Ultra66 controller

I'd like to use a Promise Ultra66 controller as a direct replacement
for my onboard IDE.  Has anyone found an easy way to do this?

I have one disk with the partitions (in the original setup):
  /dev/hda1 /boot
  /dev/hda5 (swap)
  /dev/hda6 /

Currently I'm using kernel 2.2.16 with the Hendrick's patch.

I tried the following:
1. Compile the kernel with "Boot off-board chipsets first support".
   Didn't do anything!  It still looked for /dev/hda (onboard controller).

2. Add the lines:
   to lilo.conf.  This is supposed to treat /dev/hde as if it were /dev/hda.
   This didn't work either!  It booted, but got a kernel panic trying to
   find the root filesystem.

Thanks for any help,

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