Ferris McCormick wrote:

> On Wed, 1 Dec 2004, Zhang Weiwu wrote:
>
> >> Hello. I (by surprise) find that my Ultra 5 uses a standard 40-pin 
> IDE cable, and the on-board connector seems to be only a standard IDE 
> connector, thus, my harddisk, being able to run ATA66, is only working 
> in very slow standard IDE mode.
> >>
> >>
> >> 2. How to boot from the hdd on the card. I just learnt to use 'boot 
> cdrom' on OBP to boot from CDROM, but yet is it possible to boot from 
> the hdd on the card? If this is not possible, perhaps I need to 
> prepare a boot floppy to bring up the OS (on hdd)?
> >>
>
> This one I can sort of answer.  The following process has worked for me
> on a U10 with an external drive:
>
Okay, I overcome the first problem by installing gentoo from an existing 
hdd gentoo installation. I borrowed my friends' hdd for it.

> 1. At the 'ok' prompt, type in the command-- show-disks
> 2. It will show the disks and ask you to select the one you want.
>    Select the external drive (They are labeled a, b, c, etc.  You should
>    see a & b; pick the one corresponding to your external drive.  If it's
>    not obvious from the disk name, by using brute force you can do this
>    twice, once with the external drive on and once not.)
> 3. boot ^Y (Ctrl-Y), or 'devalias gentoo ^Y' and then 'boot gentoo'
>
Err. None of a, b, c could boot. I feel a bit wired, a) is cdrom, b) is 
ide@3/disk but the hdd on IDE card should be ide5 (count from 1) or ide4 
(count from 0)

> If this doesn't appeal, you can wait for someone who actually knows the
> easiest way to do this on a U5 & then do that.
>
> At some point, you probably want to go to
> http://docs.sun.com/app/docs/coll/216.1
> and grab some OpenBoot documentation.
>
> Somewhere on Sun's site is the answer to your exact question, but I
> haven't any idea where, anymore.
>
Is it possible at all to put the boot loader onto floppy like some 
people did for their x86 box? I see the kernel is pretty big (3.6MB), 
but squezze down it seems could reach 1.44MB.

> Something else you can do is go to the #gentoo-sparc FreeNode IRC
> channel and ask around there.

Yes, good idea:) In China Xiamen irc is blocked ;(

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