On Fri, Mar 26, 2021, at 4:27 PM, Wes Kussmaul wrote:
> 
> On 3/26/21 12:18 PM, Kurt H Maier wrote:
> > On Fri, Mar 26, 2021 at 09:20:44AM -0400, Wes Kussmaul wrote:
> >> The replacement of legacy BIOS with UEFI had two consequences:
> >>
> >>   1. Dual booting is not possible
> >
> > This is false.  Dual-booting works just fine with UEFI; tools like
> > efibootmgr make it trivial and I do it all the time.  It's much nicer
> > than having to work with grub.
> 
> Then perhaps it wasn't just UEFI but something else in the system. I 
> recall trying to disable Secure Boot with no effect.
> 
> If I still had the laptop I would certainly try efibootmgr but as I said 
> I sent it back.
> 
> At any rate Lenovo had an incentive to make it work (preventing a 
> return/refund) and told me it couldn't be done.

There are broken UEFI implementations just like there were broken BIOS 
implementations in the 90s.

https://wiki.osdev.org/Broken_UEFI_implementations

It's certainly not a complete list. Lenovo appears twice, although one of the 
problems is just a boot logo thing. At least they're not Acer.

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