Summary: Alternate boot disk on U10

From: Sriman Kumaran <>
Date: Wed Oct 01 2003 - 07:41:29 EDT
Hi Managers,
Thanks to the following for pointing out the out mistake in the devalias.
instead of dad@2,0 I should use disk@2,0 (/pci@1f,0/pci@1,1/ide@3/disk@2,0).
Mitchell, John
Reggie Beavers
Paul Richards
Darren Dunham
Paul Ketelaar
I can boot from the second disk now.
Thanks again

Sriman Kumaran <> wrote:

Hi Mangaers,

I have 2 disks in my Ultra10 as shown here:

Inside system in format command:

 0. c0t0d0 <Seagate Medalist 34342A cyl 8892 alt 2 hd 15 sec 63>  
 1. c0t2d0 <ST340014A cyl 65529 alt 2 hd 16 sec 63>

and at the OK prompt

ok probe-ide
  Device 0  ( Primary Master )
          ATA Model: ST34342A

  Device 1  ( Primary Slave )
         Not Present

  Device 2  ( Secondary Master )
          ATA Model: ST340014A

  Device 3  ( Secondary Slave )
         Removable ATAPI Model: CRD-8240B

My current boot disk is disk0 as:

disk0                    /pci@1f,0/pci@1,1/ide@3/disk@0,0

booting from disk0 is fine, but when I want to boot from the second disk I can't . This is what I have done so far:

1. ufsdump of c0t0d0s0 and ufsrestore to c0t2d0s0

2. Installed the boot block on c0t2d0s0.

3. Created a devalias at ok prompt for my second disk as:

 otherroot                /pci@1f,0/pci@1,1/ide@3/dad@2,0

after reset and run 

boot otherroot

I get the following error message:

                 Can't open boot device

Where am I making mistake?

Thanks for your help in advance.


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Received on Wed Oct 1 07:41:25 2003

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