Dual Boot Windows 10 and Batocera with Grub2Win

adamsturman

Hey,

I've been trying to get my computer to dual boot Windows 10 and Batocera. They are installed on 2 different HDD in the computer and I just want to be able to select which one to start when I boot up. I think that a custom script in Grub2Win would do the job, I just don't know how to do that.

Anyone able to help?

adamsturman

I managed to get some help on the Grub2Win forum, which you can see here: https://sourceforge.net/p/grub2win/discussion/general/thread/2df55592d3/

What you do is in Grub2Win set up a custom code using this code:
set default=“0”
set timeout=“0”
menuentry “batocera.linux” {
search -f /batocera-boot.conf –set=root
linux /boot/linux label=BATOCERA console=tty3 quiet loglevel=0 vt.global_cursor_default=0
initrd /boot/initrd.gz
}
Save that up and when you next boot up, select the Grub2 option, and then select the custom code. It will run the code, and then another option will appear saying batocera.linux. Select that option and it will run Batocera.

I hope that helps anyone else that might come across this.

adamsturman

Another update to this in case anyone ever comes across this looking for answers for themselves, the code I posted above only works on BIOS computers and not EFI computers. Only EFI computer you did to run this code instead:

getpartition file /batocera-boot.conf root
linux /boot/linux label=BATOCERA console=tty3 quiet loglevel=0 vt.global_cursor_default=0
initrd /boot/initrd.gz

I hope that help anyone that comes across this.

FoxHoundRA64

adamsturman

I am going though this right now and went back to your post on the grub2win forum with more details! I was hoping to find a more concise solution to my particular hardware.

I have a ThinkCentre m75q-1 little ryzen PC with a 3000g and I mostly want to play ps2, xbox, hopefully FZERO on GC I love that game and none of my emu systems can run it full speed all the time :/ Mudrunner PC, Phantasy Star Online etc

It uses an m.2 drive with w10 on it for primary and also a 1tb hard drive with hopefully Barocera and around 800gb reserved for Data for steam games and stuff on Windows. With a portion of the remainder of space on the secondary drive, the HDD, I want to install Batocera and have the SHARE folder accessible for obvious reasons, so I can be in either OS environment and be able to access the folder for easy tinkering

All that being said, I just want to dual boot into windows 10 with my current install and not lose anything and also boot into batocera whenever I want, but mostly for testing performance of the 3000g on Xemu and pcsx2 on Batocera. Help me out if yall want :) I am clueless on how to use grub2win, I tried enabling it and in Windows using CMD and it said success but was still windows boot loader and also using portable linux Mint and boot repair with no luck, it goes right back to windows even after it says it has selected Batocera in boot repair. Thank you I am sleepy so my sentences are bad haha