r/ChromeOSFlex • u/Normal_Ingredients26 • 24d ago

Discussion Does anyone have a reliable way to get chrome OS flex to work alongside a version of windows as a dual boot?

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3

u/rswwalker 24d ago

I would try dual SSDs as your best chance, but you will have to work out issues with boot loaders. AI can probably help figuring out the boot loader issues.

3

u/some_friggin_guy 24d ago

2 HD windows on one , disconnect the windows one,, install os-flex on the other one, when done reconnect windows one then choose your OS you want to run via bios boot device

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u/Obvious_Frosting5715 24d ago

Use a two drive computer. I just bought a Lenovo workstation (P1 Gen 4 w/ 64 gb RAM, and two 2TB ssd's) that officially supports flex and I have Windows 11 pro on the primary pre-installed ssd drive and ChromeOS flex on the secondary ssd. It works amazing, just hit F12 at start up and choose your drive.

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u/TraderJo__ 24d ago edited 24d ago

Use Ubuntu stand-alone USB to boot with both COF & W disks connected & use the program available with Ubuntu-SA OS to set the NVRAM entries to point to the boot-file within the correct boot-partition within the respective disks. Those entries will then show up on Boot & can be selected then.

It is assumed here that the OS’s are on separate physical disks as that’s the only way possible.

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u/Kev-2050 24d ago

Install as single img and patching the grub. Use gpt for instructions. Alternative install in nested GPT single partition. Need a lot effort to correct the grub booter. Include edit parameter to make it scan the nested partition

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u/thor2077 24d ago

didnt they move away from grub?

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u/Kev-2050 23d ago

Thanks for info, I’m using brunch voxel so dunno about the update. Maybe you can switch to brunch . At least it still grub base with android Wayland

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u/gpardi 23d ago

I dual boot an old T430 ThinkPad. I installed a second SSD for Chrome OSFlex and simply used the Lenovo startup options to select the desired boot drive. No additional software needed. Your computer probably has a startup options menu that you can display by holding a certain key down while booting up.