[Live-demo] UEFI booting an USB sticks - 64 bit wrench

[Alex Mandel]

Mine's an E430. An update, I toggled the hybrid UEFI/Legacy to allow
either, otherwise I'd have to reinstall windows. The only side effect so
far is that I borked grub in my dual boot as it can seem to boot windows
anymore. The BIOS boot menu lets me bypass directly to the windows
partition so it still works I just need to redo grub.

So changing boot type on a dual boot is likely to bork boot loaders. I
do not know if it causes problems on a windows only UEFI machine.

Thanks,
Alex

On 01/31/2013 02:00 AM, Hamish wrote:
> fyi, we picked up a new lenovo mid-range T530 laptop about a
> month ago. ISTR you could still choose legacy BIOS, but I think
> I left it as UEFI to see what would happen when I installed the
> dual boot xUbuntu 12.04 64bit on it (grub worked out of the box).
> It's in the field right now and I don't expect it back before
> the end of Feb, but at some point I can test. I spec'd Windows 7
> for it, so maybe have more options available to me.
> So far UEFI has been nothing but problems for me on other new
> machines, thank goodness for the Legacy BIOS option.
> 
> 
> H
> 
> 
> --- On Thu, 1/31/13, Alex Mandel <tech_dev at wildintellect.com> wrote:
> 
>> From: Alex Mandel <tech_dev at wildintellect.com>
>> Subject: Re: [Live-demo] UEFI booting an USB sticks - 64 bit wrench
>> To: "live-demo at lists.osgeo.org" <live-demo at lists.osgeo.org>
>> Date: Thursday, January 31, 2013, 1:44 AM
>> On 01/31/2013 01:25 AM, Alex Mandel
>> wrote:
>>> I haven't had a chance to fully test this so I was
>> hesitant to file
>>> tickets yet.
>>>
>>> I think I have discovered how to get usb sticks to boot
>> on a Mac, but at
>>> the same time discovered that many high end new
>> machines of all
>>> varieties are about to break our current distro in usb
>> form. The key,
>>> UEFI booting is only supported in 64 bit Ubuntu ( and
>> from what I can
>>> tell that goes for all OSs). Sadly not circumventable
>> like turning
>>> Secure boot off (a tip we should reference somewhere).
>>
>> Slight correction, switching to Legacy Bios works. Note you
>> must switch
>> back to boot something like Windows 8. In my case mine had
>> the option to
>> support both, and default to UEFI. Note, Macs don't have
>> this option so
>> they're still dead in the water without 64 bit.
>>
>> Doing this I got v5.5 to boot, apparently that's the most
>> current one I
>> have on a stick right now. I'll test 6.0 and 6.5beta
>> tomorrow and then
>> go looking for a Mac to prove my theory.
>>
>> Thanks,
>> Alex
>>
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