Re: Bug#433568: VLANs during install are important
Hello,
On Sat, Jan 30, 2010 at 11:22 AM, Josef Wolf <jw@raven.inka.de> wrote:
> On Sat, Jan 30, 2010 at 08:41:25PM +1100, Matthew Palmer wrote:
>>
>> At any rate, the size of the initrd isn't a download problem so much as an
>> installer memory footprint problem -- which isn't mitigated by using an
>> install CD.
>> [ ... ]
>> > > We usually don't do make such changes lightly.
>> > I guess this decision is not up to me. ;-)
>> No, but you can help the decision be made by demonstrating precisely how
>> much of a "cost" there actually is by building up a customised installer
>> and presenting the appropriate statistics.
>
> On i386, the cost would be about:
>
> 50244 bytes for the kernel modules
> + 8224 bytes for vconfig (might be reduced by using vconfig from busybox)
> + 1000 bytes for necfg changes (this is an estimation)
> + ????? for the udeb packaging (does this count? It don't end up in initrd)
>
> So the unpacked initrd size would be increased by ca. 60 kbytes.
The size of initrd is a problem but not really a blocker. Besides it
will be smaller then it since we could use vconfig from busybox. So it
would be like 52 Kbytes in the end.
For CD images there's no need to have it in initrd since it could be
loaded from the CD. For network installs yes, this could be needed.
> But cost is not the only criteria, I think. Benefit is another one. Install
> over vlan is not exactly a common use case. Up to now, I've seen only 5
> people showing interest into this topic at all: Luca, Philipp, Robert,
> Ferenc and me. This is probably not _that_ mass of request that would
> justify _any_ cost?
>
> Given the initrd increase, I think we should drop the idea about integration
> into d-i. I don't know about the other four people, but I build customized
> install CDs anyway, and I have integrated vlan-install already into them
> (though the integration is not as clean yet as it should be for d-i)
Personally I use vlan here in the company for choosing between the
various networks we have for development but most of time those are
used using virtual machines and then I use scripts to put the virtual
interface on it before loading the VM.
It would be nice to have d-i supporting it; just a matter of how do
that now IMO.
--
Otavio Salvador O.S. Systems
E-mail: otavio@ossystems.com.br http://www.ossystems.com.br
Mobile: +55 53 9981-7854 http://projetos.ossystems.com.br
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