Re: Tracking sarge
Alice Stamping <email@example.com> writes:
> Many thanks for your quick reply.
> On Thu, 03 Feb 2005 16:24:27 +0100, Goswin von Brederlow
> <firstname.lastname@example.org> wrote:
>> Alice Stamping <email@example.com> writes:
>> > I would like to use some AMD Opteron kit in production with Debian. I
>> > don't, therefore, fancy tracking unstable with these boxes. :)
>> > I want to track sarge with these computers. Is it possible to :
>> > - install Debian Sarge from the i386 iso
>> > - using make-kpkg build a 64-bit kernel on the newly installed box
>> > for the AMD 64 bit platform.
>> Not comfortably.
>> apt-get install kernel-image-2.6-amd64-<tab>
>> kernel-image-2.6-amd64-generic kernel-image-2.6-amd64-k8-smp
>> kernel-image-2.6-amd64-k8 kernel-image-2.6-amd64-xeon
> Less work for me if someone at Debian was kind enough to make a kernel
> already. :)
They have. Its even in sarge.
>> > - build the packages we normally build from source from sources after
>> > booting into the 64 bit kernel (e.g. apache/php)
>> That needs all the build-depends too. A lot of building and all of it
>> not prepared for in a 32bit userland. It's possible but a lot of work.
> Of course (I was planning to take a --get-selections from the current
> Xeon doing the job, taking my own packages out, then running a
> --set-selections on the new Opteron kit - that way I'll get the
> build-deps, but of course they wont be 64-bit - that small matter had
> escaped me.)
> If I just used a 64 bit kernel, and kept the rest of the system
> tracking 32-bit packages, would I still see stronger performance than
> an equivilently specced Xeon system?
>From what I heart you won't feel the difference. The advantage of a
64bit kernel lies in having more than 3GB address space (more than 4GB
for 64bit) programs and the possibility of more than 4GB physical ram
> Your help is very much appreciated.