Booting 32/64bit from bootpicker

[oxox]

Hello everyone,

i successfully installed Snow Leopard on my Haswell computer using Opencore.

As you know SL can boot in 32 and 64bit mode. This can be adjusted via the arch ooption in Opencore's config.plist.

While overall i am happy with booting in 64bit, 32bit offers a wider support for legacy PCI cards. Like SCSI for example, which is very important to me.

Does anyone by chance know a way of having a bootpicker for booting into the two different architectures, instead of mounting the EFI folder and editing the plist file every time?

Could Refind be the solution by editing the Refind config file in a way that it would point on a "OC32" and "OC64" folder within the EFI folder?

 

On a real Mac we would simply hold down the 3+2 or the 6+4 keys while booting. According to Dortania's guide this feature has been deactivated in Opencore.

 

[Anto65]

I think it's possible, and I'd like to take this opportunity to praise this fantastic loader.

 

Then create the two folders "OC32" and "OC64" and choose which one to boot with refind

 

Here in the example I have two OC folders: one normal and one without WEG (OC-NO-WEG) Very convenient for those with Tahoe who have problems with WEG

 

Spoiler

 

Very similar to BootloaderChooser ( just rename refindx64.efi -> Bootx64.efi  )

except that here you can have the GUI at Boot + lots of options to configure it (  🙏 Chriss for the beautiful theme )

 

Spoiler

 

 ( My Custom )

 

For those who don't want the GUI, just don't put any theme or icon folder, you will have a text menu

 

Spoiler

 

Even if you have the GUI active, you can still skip it at boot by setting the timeout to -1

 

Spoiler

 

will boot the last bootloader selected before 

 

 

You can customize the drive scan, I chose custom/manual and external , like usb stick / Ssd

Obviously specifying the directories of the bootloaders in use

 

Spoiler

 

 

 

After setting a number for each bootloader

 

Spoiler

 

When I want to switch from Opencore to "Opencore-NO-WEG" , for example, at boot I just have to hold down the number 2  key

will always boot "Opencore-NO-WEG" until selected from the rEFInd menu (by holding down any key)

or directly from the keyboard another number assigned to the respective bootloader

 

Many other options can be activated.

Not a bad solution for a multiboot system.
For those having problems with WEG o other ... , for example, or simply trying out a new Clover or OC version...

[STLVNUB]

On 4/22/2025 at 12:29 AM, oxox said:

Hello everyone,

i successfully installed Snow Leopard on my Haswell computer using Opencore.

As you know SL can boot in 32 and 64bit mode. This can be adjusted via the arch ooption in Opencore's config.plist.

While overall i am happy with booting in 64bit, 32bit offers a wider support for legacy PCI cards. Like SCSI for example, which is very important to me.

Does anyone by chance know a way of having a bootpicker for booting into the two different architectures, instead of mounting the EFI folder and editing the plist file every time?

Could Refind be the solution by editing the Refind config file in a way that it would point on a "OC32" and "OC64" folder within the EFI folder?

 

On a real Mac we would simply hold down the 3+2 or the 6+4 keys while booting. According to Dortania's guide this feature has been deactivated in Opencore.

 

Interested To See Your EFI Folder As I Have Snow Leopard 10.6.0 DVD

And It Would Be Interesting If I Could Get It To Work On My Setup

[PippoX0]

Just to try it ! :-)