Ubuntu Desktop on i386
bryan.quigley at canonical.com
Tue Feb 2 17:26:20 UTC 2016
> Kernel support is a separate vector. E.g. in Debian it is common to
> install 32-bit userspace with the 64-bit kernel. Thus using all the
> CPU/kernel features, access all the memory, yet have lower memory
Right, but depending on what we decide it will also impact how tested
the HWE stack is on Unity. Say we stop building the x86_32 image
starting with 16.10. Would backporting the x86_32 bit kernel from
16.10 to 16.04.2 HWE release still happen?
>> I'm also happy to revisit my survey  and see where people are today.
> I'm not sure it's about where people are, but rather where we want people to be.
I mean I want us to just drop 32-bit kernels and images entirely and
just keep 32 bit compat libraries. But I also want to give lots of
notice so the soonest I'd want to that would be after 18.04 at this
> My argument for dropping .iso, but keeping the packages/archive is as follows:
> * we would like to support upgrades, for those that have 32 bit install
> * but we would like to prevent any new installations
I just want to prevent further bit root for those upgrade users.
There will be even less people testing those now, so I do think we
need a plan to eventually remove Unity from the archive and maybe
migrate those users to another DE? (Unity8 seems to be doing x86_32
releases? the obvious choice for me would be Xubuntu/Mate/Lubuntu but
we don't need where to move today)
> * because any new installation is amd64 capable, or such is the Ubuntu
> Desktop ISO installer requirement for 16.04 LTS
> * reduce releases.ubuntu.com mirror costs by about a third
> Otherwise, all survey results will remain constant.
> Building images is cheap, however I do not believe we can actually
> adequately support i386 ones for ubuntu desktop:
> * there is no i386-only certified hardware
> * image manual testing has a cost
> * no ubuntu developers use them =)
> Could we start the sunset period with removing flavour dropdown from
> the ubuntu desktop download pages for 16.04? (But keep the i386 images
> on releases.ubuntu.com?)
I'm 100% for that. Still supported (although not certified), but you
really have to know you want to get it.
So maybe a basic plan like:
1. Announce that Ubuntu 16.04 LTS will be the last officially
supported release of Unity. Keep it on releases.u.c but remove from
main download page. Also announce that x86_32-bit Ubuntu (server
too?) won't be getting HWE?
2. Drop to cdimage for 16.10 with not tested/supported caveat
(continue based on usage numbers)
3. For 17.04 evaluate migration options and consider dropping Unity7
from x86_32 archive
4. For 18.04 have migration options well tested for 16.04 upgraders.
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