Re: Can you MOP boot an install kernel directly?

Johnny Billquist <[email protected]>
Newsgroups gmane.os.netbsd.ports.vax
Organization SoftJAR AB
Message-ID <[email protected]>
On 2025-08-05 15:13, Perry Metzger wrote:
> On 8/5/25 00:52, Johnny Billquist wrote:
>> On 2025-08-04 19:26, Perry Metzger wrote:
>>> On 8/4/25 12:36, Jason Thorpe wrote:
>>>>> On Aug 4, 2025, at 7:45 AM, Johnny Billquist<[email protected]> wrote:
>>>>>
>>>>> I'll just top-post to be lazy.
>>>>>
>>>>> First of all, as you know, MOP is the "native" way to netboot DEC 
>>>>> machines from back in the day. And MOP sortof fills the place of 
>>>>> both DHCP and TFTP in one. But it's more targeted for the explicit 
>>>>> need of netbooting and remote management. But in a sense, for 
>>>>> VAXen, it would be great if we had the possibility of getting all 
>>>>> the netbooting though MOP and not need DHCP and TFTP. Not sure if 
>>>>> that is possible, though.
>>>> Can MOP supply the IP address to the system?  If not, you're not 
>>>> goingto be eliminating DHCP (or BOOTP).
>>>
>>> Certainly, but it's nice not to have to load boot blocks that then 
>>> just load the kernel if you can just load the kernel in one step. The 
>>> OS will use dhclient to get its address.
>>
>> I'm starting to suspect you don't understand the full process of the 
>> booting.
> 
> I wrote one version of the x86 boot blocks.

Good.

>> The boot block is a really simple piece of code that resides in the 
>> first block(s) of a disk, and the sole purpose of that code is to read 
>> in the /boot image.
> 
> We're not talking about disk booting here at all.

Good. Because then there is no boot block involved at all.

   Johnny

-- 
Johnny Billquist                  || "I'm on a bus
                                   ||  on a psychedelic trip
email: [email protected]             ||  Reading murder books
pdp is alive!                     ||  tryin' to stay hip" - B. Idol
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