On Tue, Dec 26, 2017 at 12:56:53PM -0800, Jordan wrote:
> The install procedure I followed on the T4 was:
> 
> 1) Boot install kernel and drop to shell and provision RAID partitions on
> both disks using the letter “a” via disklabel(8)
> 
> 2) Assemble RAID volume with # bioctl -c 1 -l /dev/sd0a,/dev/sd1a softraid0
> 
> 3) I zeroed the first 10MB of the RAID volume with # dd if=/dev/urandom
> of=/dev/rsd2c bs=1m

Step 3 might get you in trouble. You're writing to the raw disk device
so this command might nuke disklabel and/or softraid meta data.

> 4) I finished off the install as usual by typing ”install” into command line
> and proceeded normally
> 
> 5) I then rebooted and set the boot parameters at the ok prompt as per
> boot_sparc(8)

> In short, on sparc64, is softraid boot like that of i386/amd64 where
> everything including root is stored within the RAID volume,

Yes, except as mentioned the RAID fs needs to be on an 'a' partition.

> or does sparc64
> require me to have a small partition at the beginning of my physical disks
> containing the kernel and ofwboot?

No it does not.

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