28.03.2021 00:14:51 Ethan Gardener <eeke...@fastmail.fm>:
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.
I remember back in the days when I bought my lenovo laptop in 2014
something. UEFI was still new to me, and it was my first UEFI product. I
bombarded lenovo with questions about the UEFI and secure boot since I
wanted to install linux on it. They responded with a proper answer and a
link.
The link led to an online/web bios interface simulation where you could
click around the firmware settings. It was model specific, so I suppose
the same exists for their other products.
On the same page were instructions about replacing parts and more, it was
a page for support people and lenovo partners.
sirjofri
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