Re: Bay Trail 32bit UEFI

[Joe Holden]

On 02/03/2016 19:45, Lundberg, Johannes wrote:

On Wed, Mar 2, 2016 at 11:37 AM, Jakob Alvermark > wrote:

On Wed, March 2, 2016 20:00, Lundberg, Johannes wrote:
> On Wed, Mar 2, 2016 at 2:10 AM, Joe Holden > wrote:
>
>
>> On 02/03/2016 01:45, Lundberg, Johannes wrote:
>>
>>
>>> CherryTrail devices/boards with 64bit UEFI are already out. Upgrading
>>>  the hardware is one solution (I did).
>>>
>>> I'm thinking of the sticks etc, they all have 32bit UEFI and no
>>>
>> CSM/legacy boot, but have 64bit cpus
>>
>
>
>
> Yeah and it sucks. All to adapt to Microsoft who couldn't make 64bit UEFI
>  boot loader in time (or so I heard)... I heard though that newer (Linux)
> versions of Intel Compute Stick would have 64bit UEFI but I'm not sure.

The Intel Compute sticks can boot both 32 and 64 bit. It doesn't
matter if
you have the Windows or Linux version. (The difference between the
is the
amount of RAM and onboard storage, the firmware is the same)

I have the Windows one and it boots 64 bit just fine.
You can select it in the settings. (OS setting: Windows=32 bit,
Linux=64 bit)


That's great. However, as for all other BayTrail devices out there that
does not support Linux officially I think you're stuck with 32bit.


Jakob

My point was that it is possible to boot amd64 bit kernels from 32bit 
UEFI, grub (and therefore, linux) does it.
I think even openbsd at least has a 32bit loader, I'd settle for 32bit 
but the problem is I can't easily boot it.


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Re: Bay Trail 32bit UEFI

[Jakob Alvermark]

On Wed, March 2, 2016 20:00, Lundberg, Johannes wrote:
> On Wed, Mar 2, 2016 at 2:10 AM, Joe Holden  wrote:
>
>
>> On 02/03/2016 01:45, Lundberg, Johannes wrote:
>>
>>
>>> CherryTrail devices/boards with 64bit UEFI are already out. Upgrading
>>>  the hardware is one solution (I did).
>>>
>>> I'm thinking of the sticks etc, they all have 32bit UEFI and no
>>>
>> CSM/legacy boot, but have 64bit cpus
>>
>
>
>
> Yeah and it sucks. All to adapt to Microsoft who couldn't make 64bit UEFI
>  boot loader in time (or so I heard)... I heard though that newer (Linux)
> versions of Intel Compute Stick would have 64bit UEFI but I'm not sure.

The Intel Compute sticks can boot both 32 and 64 bit. It doesn't matter if
you have the Windows or Linux version. (The difference between the is the
amount of RAM and onboard storage, the firmware is the same)

I have the Windows one and it boots 64 bit just fine.
You can select it in the settings. (OS setting: Windows=32 bit, Linux=64 bit)

Jakob

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Re: Bay Trail 32bit UEFI

[Lundberg, Johannes]

On Wed, Mar 2, 2016 at 11:37 AM, Jakob Alvermark 
wrote:

> On Wed, March 2, 2016 20:00, Lundberg, Johannes wrote:
> > On Wed, Mar 2, 2016 at 2:10 AM, Joe Holden  wrote:
> >
> >
> >> On 02/03/2016 01:45, Lundberg, Johannes wrote:
> >>
> >>
> >>> CherryTrail devices/boards with 64bit UEFI are already out. Upgrading
> >>>  the hardware is one solution (I did).
> >>>
> >>> I'm thinking of the sticks etc, they all have 32bit UEFI and no
> >>>
> >> CSM/legacy boot, but have 64bit cpus
> >>
> >
> >
> >
> > Yeah and it sucks. All to adapt to Microsoft who couldn't make 64bit UEFI
> >  boot loader in time (or so I heard)... I heard though that newer (Linux)
> > versions of Intel Compute Stick would have 64bit UEFI but I'm not sure.
>
> The Intel Compute sticks can boot both 32 and 64 bit. It doesn't matter if
> you have the Windows or Linux version. (The difference between the is the
> amount of RAM and onboard storage, the firmware is the same)
>
> I have the Windows one and it boots 64 bit just fine.
> You can select it in the settings. (OS setting: Windows=32 bit, Linux=64
> bit)
>

That's great. However, as for all other BayTrail devices out there that
does not support Linux officially I think you're stuck with 32bit.


>
> Jakob
>
>

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Re: Bay Trail 32bit UEFI

[Lundberg, Johannes]

On Wed, Mar 2, 2016 at 2:10 AM, Joe Holden  wrote:

> On 02/03/2016 01:45, Lundberg, Johannes wrote:
>
>> CherryTrail devices/boards with 64bit UEFI are already out. Upgrading
>> the hardware is one solution (I did).
>>
>> I'm thinking of the sticks etc, they all have 32bit UEFI and no
> CSM/legacy boot, but have 64bit cpus



Yeah and it sucks. All to adapt to Microsoft who couldn't make 64bit UEFI
boot loader in time (or so I heard)...
I heard though that newer (Linux) versions of Intel Compute Stick would
have 64bit UEFI but I'm not sure.


>
> I never did try FreeBSD on BayTrail but for running Linux on BayTrail I
>> used special built Grub that was 32bit but could load 64bit OS. Could
>> this kind of Grub boot a 64bit FreeBSD, I wonder?
>>
>> I looked at this but honestly it looked like a giant nightmare - I did
> get grub loading on a test platform (tablet, for display etc) but didn't
> manage to make it boot anything
>

This page contains some instructions and a downloadable booti32.efi image
that you can put in the EFI folder. That will boot a 64bit grub that should
be able to boot a 64bit OS.

http://liliputing.com/2013/10/booting-ubuntu-asus-transformer-book-t100.html

I do have customized Arch Linux memstick image with Grub and this
booti32.efi image so it boots on these systems. This can be used to install
a Grub bootloader that maybe can boot FreeBSD.

One question is, would Grub's filesystem drivers for FreeBSD work in this
mode?

Maybe I should give it a shot today..


>
>> On Tue, Mar 1, 2016 at 5:20 PM, John Baldwin > > wrote:
>>
>> On Sunday, February 28, 2016 07:00:06 AM Joe Holden wrote:
>> > Hi all,
>> >
>> > Apologies if this is the wrong list...
>> >
>> > Is there any plan to support booting FreeBSD on 32bit UEFI systems
>> (with
>> > or without 64bit kernel/userland)? Obviously there is no i386 efi
>> loader
>> > currently so neither is possible...
>>
>> I don't think anyone is actively working on it.  I think it shouldn't
>> be
>> that much work once the i386 loader is resurrected.  The i386 kernel
>> just
>> needs to use the EFI memory map and I think the rest of it should
>> generally
>> just work.
>>
>> --
>> John Baldwin
>> ___
>> freebsd-current@freebsd.org 
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>>
>
>
>

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Re: Bay Trail 32bit UEFI

[John Baldwin]

On Tuesday, March 01, 2016 05:45:04 PM Lundberg, Johannes wrote:
> CherryTrail devices/boards with 64bit UEFI are already out. Upgrading the
> hardware is one solution (I did).
> 
> I never did try FreeBSD on BayTrail but for running Linux on BayTrail I
> used special built Grub that was 32bit but could load 64bit OS. Could this
> kind of Grub boot a 64bit FreeBSD, I wonder?

Mmm, booting an amd64 kernel from an i386 UEFI loader would be a bit more
work.  OTOH, in the non-UEFI case we use an i386 loader that boots an
amd64 kernel, so it isn't impossible.

-- 
John Baldwin
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Re: Bay Trail 32bit UEFI

[Joe Holden]

On 02/03/2016 01:45, Lundberg, Johannes wrote:

CherryTrail devices/boards with 64bit UEFI are already out. Upgrading
the hardware is one solution (I did).

I'm thinking of the sticks etc, they all have 32bit UEFI and no 
CSM/legacy boot, but have 64bit cpus



I never did try FreeBSD on BayTrail but for running Linux on BayTrail I
used special built Grub that was 32bit but could load 64bit OS. Could
this kind of Grub boot a 64bit FreeBSD, I wonder?

I looked at this but honestly it looked like a giant nightmare - I did 
get grub loading on a test platform (tablet, for display etc) but didn't 
manage to make it boot anything


On Tue, Mar 1, 2016 at 5:20 PM, John Baldwin > wrote:

On Sunday, February 28, 2016 07:00:06 AM Joe Holden wrote:
> Hi all,
>
> Apologies if this is the wrong list...
>
> Is there any plan to support booting FreeBSD on 32bit UEFI systems (with
> or without 64bit kernel/userland)? Obviously there is no i386 efi loader
> currently so neither is possible...

I don't think anyone is actively working on it.  I think it shouldn't be
that much work once the i386 loader is resurrected.  The i386 kernel
just
needs to use the EFI memory map and I think the rest of it should
generally
just work.

--
John Baldwin
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Re: Bay Trail 32bit UEFI

[Lundberg, Johannes]

CherryTrail devices/boards with 64bit UEFI are already out. Upgrading the
hardware is one solution (I did).

I never did try FreeBSD on BayTrail but for running Linux on BayTrail I
used special built Grub that was 32bit but could load 64bit OS. Could this
kind of Grub boot a 64bit FreeBSD, I wonder?


On Tue, Mar 1, 2016 at 5:20 PM, John Baldwin  wrote:

> On Sunday, February 28, 2016 07:00:06 AM Joe Holden wrote:
> > Hi all,
> >
> > Apologies if this is the wrong list...
> >
> > Is there any plan to support booting FreeBSD on 32bit UEFI systems (with
> > or without 64bit kernel/userland)? Obviously there is no i386 efi loader
> > currently so neither is possible...
>
> I don't think anyone is actively working on it.  I think it shouldn't be
> that much work once the i386 loader is resurrected.  The i386 kernel just
> needs to use the EFI memory map and I think the rest of it should generally
> just work.
>
> --
> John Baldwin
> ___
> freebsd-current@freebsd.org mailing list
> https://lists.freebsd.org/mailman/listinfo/freebsd-current
> To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
>

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Re: Bay Trail 32bit UEFI

[John Baldwin]

On Sunday, February 28, 2016 07:00:06 AM Joe Holden wrote:
> Hi all,
> 
> Apologies if this is the wrong list...
> 
> Is there any plan to support booting FreeBSD on 32bit UEFI systems (with 
> or without 64bit kernel/userland)? Obviously there is no i386 efi loader 
> currently so neither is possible...

I don't think anyone is actively working on it.  I think it shouldn't be
that much work once the i386 loader is resurrected.  The i386 kernel just
needs to use the EFI memory map and I think the rest of it should generally
just work.

-- 
John Baldwin
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