OS/2, eCS & ArcaOS - Technical > Setup & Installation
UEFI: Dual Boot - Windows 11 and ArcaOS 5.1
Martin Iturbide:
Hello
Is it real? Was it that easy?
I just installed ArcaOS 5.1 on an UEFI HP Pavillion x360. It has Windows 11 and I wanted a dual boot machine.... and it worked.
It was too easy that I'm still rebooting from one OS to other to see when it will fail ;D
1) On the UEFI first I disable "Secure Boot". When trying to boot Windows 11 the UEFI BIOS asked me to type a code that was showed on the screen (crazy UEFI stuff).
2) Booted Windows 11 and reduce the size of the Win11 partition to have some free space before it to install ArcaOS. I used Easus Partition Manager on Windows to reduce its size. (Check Dual_001.jpg for reference on how the partitions look like).
3) Booted the ArcaOS Flash drive.
4) Created the partition on the free space.
5) Finish the install
6) It shows a "AN Launcher" where I can select ArcaOS or Windows... (Dual_007.jpg) The only thing is that Windows shows like "old_x86".
I just want to know how to change the names of the options on the "AN Launcher", so I can rename one to "ArcaOS 5.1" and the "Windows 11" the other.
But I'm very happy on how easy it was.
Regards
Rich Walsh:
--- Quote from: Martin Iturbide on September 07, 2023, 04:52:22 am ---Is it real? Was it that easy?
--- End quote ---
Yes, this is exactly the way it's supposed to be: no drama.
--- Quote ---6) It shows a "AN Launcher" where I can select ArcaOS or Windows... (Dual_007.jpg) The only thing is that Windows shows like "old_x86".
I just want to know how to change the names of the options on the "AN Launcher", so I can rename one to "ArcaOS 5.1" and the "Windows 11" the other.
--- End quote ---
Launcher's Help screen gives a brief how-to; here's a slightly more detailed explanation:
Use MiniLVM to assign a drive letter to your ESP (e.g. 'U:'), then navigate to U:\EFI\BOOT\LAUNCHER.CFG. Open it and edit the "[menu]' section. Each line is in the form "<menu text> = <program>.EFI [options]". Here's my menu:
[menu]
ArcaOS (N:) = \EFI\OS2\OS2LDR.EFI N:
ArcaOS (C:) = \EFI\OS2\OS2LDR.EFI C:
ArcaOS (*) = \EFI\OS2\OS2LDR.EFI
Win11 = \EFI\Microsoft\Boot\bootmgfw.efi
Kubuntu22 = \EFI\ubuntu\shimx64.efi
Shell = \EFI\Boot\shell.efi
Help = ??
Roderick Klein:
That is what makes GPT disc layout a lot easier compared to MBR disc layout. MBR setup, especially with more then one operating booting from a disc an be problematic to say the least.
If you have a setup that currently works, keep it. New to setup that support UEFI boot, dump MBR.
GPT discs, because of the filter driver, is slower then MBR setup disc. But on an SSD or NVMe disc in daily usage you will not really notice the performance the GPT filter driver introduces.
Roderick
Martin Iturbide:
--- Quote from: Rich Walsh on September 07, 2023, 06:14:38 am ---
--- Quote from: Martin Iturbide on September 07, 2023, 04:52:22 am ---Is it real? Was it that easy?
--- End quote ---
Yes, this is exactly the way it's supposed to be: no drama.
--- Quote ---6) It shows a "AN Launcher" where I can select ArcaOS or Windows... (Dual_007.jpg) The only thing is that Windows shows like "old_x86".
I just want to know how to change the names of the options on the "AN Launcher", so I can rename one to "ArcaOS 5.1" and the "Windows 11" the other.
--- End quote ---
Launcher's Help screen gives a brief how-to; here's a slightly more detailed explanation:
Use MiniLVM to assign a drive letter to your ESP (e.g. 'U:'), then navigate to U:\EFI\BOOT\LAUNCHER.CFG. Open it and edit the "[menu]' section. Each line is in the form "<menu text> = <program>.EFI [options]". Here's my menu:
[menu]
ArcaOS (N:) = \EFI\OS2\OS2LDR.EFI N:
ArcaOS (C:) = \EFI\OS2\OS2LDR.EFI C:
ArcaOS (*) = \EFI\OS2\OS2LDR.EFI
Win11 = \EFI\Microsoft\Boot\bootmgfw.efi
Kubuntu22 = \EFI\ubuntu\shimx64.efi
Shell = \EFI\Boot\shell.efi
Help = ??
--- End quote ---
Thanks Rich for the detailed explanation, I was not able to get that I needed to assign letter to the EFI partition with the little help on the AN Loader.
Which is the difference in functionality between this two?
- ArcaOS (C:) = \EFI\OS2\OS2LDR.EFI C:
- ArcaOS (*) = \EFI\OS2\OS2LDR.EFI
Can I delete the second one? or does it offer something different without the C: ?
Regards
Rich Walsh:
--- Quote from: Martin Iturbide on September 07, 2023, 09:13:47 pm ---Which is the difference in functionality between this two?
- ArcaOS (C:) = \EFI\OS2\OS2LDR.EFI C:
- ArcaOS (*) = \EFI\OS2\OS2LDR.EFI
Can I delete the second one? or does it offer something different without the C: ?
--- End quote ---
If you specify a drive letter, OS2LDR will boot that drive. If you don't, OS2LDR will display a list of OS/2 partitions that may be bootable so you can choose one.
Here's something people may find interesting: if the list includes an existing BIOS-based installation, try selecting it. Ignore what you see (or rather, what you don't see) on the screen and give it a few moments. You may be pleasantly surprised. (If things seem to stop, try pressing Enter.)
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