64 bit iso with 32 bit uefi ?

[Daniel van Vugt]

I would like to see this happen too. I've got at least one cheap Windows 
machine here that simply can't boot Ubuntu without the aforementioned 
awkward hacks. 64-bit CPU but 32-bit UEFI support only...

So far I've only been able to boot Android-x86 on such hardware, since 
it has had UEFI 32-bit support in 64-bit images for some years.


On 04/10/17 01:01, Dimitri John Ledkov wrote:
> On 3 October 2017 at 17:18, Khurshid Alam <khurshid.alam at linuxmail.org> wrote:
>>
>> Hi Jeremy,
>>
>>
>> On Tue, Oct 3, 2017 at 6:24 PM, Jeremy Bicha <jbicha at ubuntu.com> wrote:
>>
>> I don't know much about this topic. Can you point to more information about
>> this issue? Specifically, can you find a source for your 10 million claim?
>>
>>
>> I think it varies with country. On some country like here in India most of
>> them come with 32 bit uefi due to oem agreement I guess.
>>
>> Hp claims they ship over 13 million units per 3/4-quarter only in US and
>> more than 80% are windows. That's how I deducted the number.
>>
>> As for 32 bit uefi, Many dell inspiron i3 ($300-$500) still have 32 bit.
>> http://amzn.to/2kjv6Gf
>>
> 
> Which are certified with UEFI 64bit on Ubuntu, and some of these are
> even available with Ubuntu preinstalled from Dell direct.
> 
> https://certification.ubuntu.com/hardware/201508-19149/
> 
>> Asus X and R series : http://bit.ly/2fHspJG (Only windows 10, dos are fine)
>>
>> All the Asus cheap eebook series , like asus x205ta, https:/
>> /www.asus.com/in/Laptops/ASUS_EeeBook_X205TA/
>>
>> Those which are pre-installed with ms-dos are fine. Also I found some are
>> listed in Ubuntu Desktop certified hardware but the are with 32 bit uefi.
>> (Technically it's ok, because on the website, Ubuntu 16.04 is listed as
>> supported and 16.04 has 32 bit. )
>>
>>
>> And are these devices even suitable for Ubuntu anyway?
>>
> 
> Please check https://certification.ubuntu.com/ many of these have been
> certified by Canonical and manufacturer to be explicitly compatible
> with Ubuntu since like 14.04 LTS using the 64bit / amd64 OS images.
> 
>>
>> I have used hack from
>> https://askubuntu.com/questions/392719/32-bit-uefi-boot-support and from
>> https://askubuntu.com/questions/749306/
>>
>> After installing everything works out of the box including sd-card reader
>> which never worked prior to 17.10.
>>
>> Suggestion:
>>
>> We only requ ire bootia32.efi on EFI/BOOT/ and i386-efi in boot/grub. May
>> these can be shipped with the iso?
>> That's what debian multiarch iso does
>> (http://cdimage.debian.org/debian-cd/current/multi-arch/). This means both
>> grub-efi-ia32 and grub-efi-amd64 needs to be pre-installed for the live iso.
>> Thoughts?
>>
> 
> Since none of the machines ship 32bit UEFI anymore, adding support for
> 32bit UEFI has diminishing returns. Patches to livecd-rootfs /
> ubuntu-cdimage / d-i / ubiquity would be required to support this in
> Ubuntu, and so far it has not been a priority to add support for.
>