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Is there a way to boot BIOS/CSM on a UEFI Class 3 device?

Featured Replies

Hi,

Is there a way to boot BIOS/CSM on a UEFI Class 3 device such as flashing it with SeaBIOS or an app that emulates CSM/BIOS? And no, using a VM is not possible.


Short answer: No.

Long answer: Maybe (very likely not yet, but hopefully soon). Coincidentally it was recently posted on reboot.pro about a newish boot manager/Windows OS loader that may (or may not) include a layer of BIOS compatibility mode via the SeaBIOS, JFYI, Quibble:

http://reboot.pro/index.php?showtopic=22748

As said there, it seems like being yet very experimental and its main scope is different (booting current Windows on EFI with OS residing on a "foreign" filesystem - BTRFS) but from the very scarce and confusing description it  sounds like it could work.

Still it is the usual "compile as you please" nonsense of many open source projects [1] which limits the possibility to test to a limited number of people with the capabilities to setup a correct build environment and smooth out the (inevitable) quirks preventing a successful compiling[2].

jaclaz

[1] the usual Rule being that if you need to compile it, it won't

[2] maybe I am too much a pessimist on these, but failure to compile has been the usual outcome of *any* project I ever tried to compile in the last 20 years or so

  • 1 year later...
  • Author
On 4/23/2023 at 7:44 AM, jaclaz said:

Short answer: No.

Long answer: Maybe (very likely not yet, but hopefully soon). Coincidentally it was recently posted on reboot.pro about a newish boot manager/Windows OS loader that may (or may not) include a layer of BIOS compatibility mode via the SeaBIOS, JFYI, Quibble:

http://reboot.pro/index.php?showtopic=22748

As said there, it seems like being yet very experimental and its main scope is different (booting current Windows on EFI with OS residing on a "foreign" filesystem - BTRFS) but from the very scarce and confusing description it  sounds like it could work.

Still it is the usual "compile as you please" nonsense of many open source projects [1] which limits the possibility to test to a limited number of people with the capabilities to setup a correct build environment and smooth out the (inevitable) quirks preventing a successful compiling[2].

jaclaz

[1] the usual Rule being that if you need to compile it, it won't

[2] maybe I am too much a pessimist on these, but failure to compile has been the usual outcome of *any* project I ever tried to compile in the last 20 years or so

Quibble isn't an option really, it can only boot UEFI Class 1-2. But is there an option for Class 3 UEFI for like an efi file emulating a BIOS, or a way to flash a UEFI Class 3 machine with something like SeaBIOS? Ppl do this with Chromebooks so I don't see why it can't be done with regular UEFI class 3 machines?

 

I also found this: https://gitlab.com/tkchia/muefircate, what would this do? (this too: https://reboot.pro/index.php?showtopic=22488)

Edited by GD 2W10

  • Author
On 4/23/2023 at 7:44 AM, jaclaz said:

Short answer: No.

Long answer: Maybe (very likely not yet, but hopefully soon). Coincidentally it was recently posted on reboot.pro about a newish boot manager/Windows OS loader that may (or may not) include a layer of BIOS compatibility mode via the SeaBIOS, JFYI, Quibble:

http://reboot.pro/index.php?showtopic=22748

As said there, it seems like being yet very experimental and its main scope is different (booting current Windows on EFI with OS residing on a "foreign" filesystem - BTRFS) but from the very scarce and confusing description it  sounds like it could work.

Still it is the usual "compile as you please" nonsense of many open source projects [1] which limits the possibility to test to a limited number of people with the capabilities to setup a correct build environment and smooth out the (inevitable) quirks preventing a successful compiling[2].

jaclaz

[1] the usual Rule being that if you need to compile it, it won't

[2] maybe I am too much a pessimist on these, but failure to compile has been the usual outcome of *any* project I ever tried to compile in the last 20 years or so

Hi,
I am trying to compile this. I am using Linux Mint to do this. I have gotten thru everything up to config. When I config at first, I get this: image.png?ex=66458e00&is=66443c80&hm=178

I tried copying the "configure' to "lolwutconf" but I get:image.png?ex=66458e51&is=66443cd1&hm=ed1

How do I fix this?

  • 7 months later...
  • Author
On 5/15/2024 at 12:46 AM, GD 2W10 said:

Hi,
I am trying to compile this. I am using Linux Mint to do this. I have gotten thru everything up to config. When I config at first, I get this: image.png?ex=66458e00&is=66443c80&hm=178

I tried copying the "configure' to "lolwutconf" but I get:image.png?ex=66458e51&is=66443cd1&hm=ed1

How do I fix this?

is there a way to fix this???

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