Dual boot Batocera and Windows 10 on same Hard Drive?

t0nito

Hi, so since I had to wipe my drive due to a problem on 5.22 I thought I might as well make it a dual boot system, so I created a first bigger partition for batocera and a smaller for windows 10.

I installed batocera on the first partition and then proceded to install windows 10 on the smaller one, knowing of course that windows bootloader would override batocera boot.

I tried installing EasyBCD and adding an entry for batocera, but I tried both the batocera's boot partition and also the "linux" system partition but neither doesn't work, one restarts the computer and the other says "no bootable media found"

So I have one "inaccessible" Batocera partition and a working windows partition.

Anyway to make this work?

I don't mind having to wipe clean the drive and start from scratch if I have too as I have all my roms and bioses backed up as long as I can make it dualboot between systems in the end.

henkall

t0nito I have a working setup with a installed Windows 10 and batocera on one disk. I can post some of my config files so you maybe can get your setup working. 🙂
Update:
Here is some og my grub conf.

Menu Entry 1 Batocera

#
#
menuentry 'Batocera ' --class debian --class icon-debian --class custom_001 {
set gfxpayload=1024x768
set reviewpause=2
set root='(hd0,5)'
linux /boot/linux root=/dev/sda5 label=BATOCERA console=tty3 quiet loglevel=0 vt.global_cursor_default=0
initrd /boot/initrd.gz
echo Boot disk address is $root
echo The boot mode is Partition Address
sleep -i -v $reviewpause ; echo
savelast 1 'Batocera'
echo GNU Grub is now loading Batocera
}

The (hd0,5) is the way grub know what partition to use. hd0 is the first disk and the 5 number is the id/number of the partition on that disk.
It is the fat32 partition we are talking about.

Hope this can help you in getting it up and running.

I also used Grub2Win for making Windows ask at boot what too do. Boot into Windows or boot into grub.

tech29

t0nito Okay, I was working on a project some time ago. I think I can make this work. Granted, I’m going to try install it onto an NVME M.2

Install Botacera onto a usb, do the normal boot and let it config.
You want to to then use a Linux Mint boot disk. Once your up (v20) or above.
Now launch gparted. Shrink the 2nd partition to at least 100/150GB (You will need space for the loading of the roms. Some can be large, plus you want some buffering space.
Now, here’s where it gets tricky. You want to long Into terminal and create an NTFS partition, the most important part is activating the NTFS.
You will have to google around for those commands, but that should do it. Botacera is UEFi so as long as you have the secure portion turned off you should be solid.
If by chance that doesn’t work, look into something called efi or efl. It’s made for allowing osx/windows and Linux in the boof.efi.
I’ll play with it a a fee days and get back to you guy’s.
On a side note, im looking for a 100% complete version of mame with every rom/chd. I’m a bit if of a perfectionist, and those bad files drive me batty.

Get back soon

~tech

t0nito

Thanks! Are you suggesting that I install grub2win and try using that as the config file?

Dragu

t0nito
Remember that you must remake the full bullshit every time as there will be a new version of Batocera.
If you have an USB3 connector and inside an USB3 memory stick, it will likely be more speed as your Sata
interface. So no reason to build a gasplant, keep Windows and Batocera data on the ssd/hdd. But for Batocera system , much more easy to have it over USB3.

henkall

t0nito not necessarily I am just looking at it now and realizing that there maybe is a easier way to do it. Just use what I have posted as inspiration to your own setup.

t0nito

I ended up researching and came across BATOCERA HD EDITION and followed the steps. Working perfectly!

Thanks!

gregouze77

Hello all,
My first post on this forum is for you.
No such partition during batocera hd edition in gruboot sequence for me...
But I am able to have a working dualboot with batocera and win10 on a 250Go SSD installed on internal M2 port using the easy routines of usb bootable launchers.

What you need:
1 machine under win for the creation of the 4 bootable medias
batocera iso
gparted iso
android_x86 8.1rc3 iso
windows 10 iso
the destination machine, boot on usb first
_some time (not too much...1h)

let's go!!!
_Boot batocera usb media and install bato on ssd via routine (internet needed), shutdown, remove usb media, restart in fresh SSD bato installation, shutdown.

_Boot gparted usb media, liberate free space for the windows partition by reducing the end of the "share" partition, create a new ntfs partition in this space, shutdown, remove usb media.

_Boot android_x86 usb media, select install, select the fresh partition, during the routine, select do not format, transform gpt to mbr (don't care about the warning), install grub and select an entry for windows (which will be batocera), finish the install, shutdown, remove usb media.

Restart, and at this moment, you've got a working multiboot with 3 androids and 1 windows (which is batocera), try it, shutdown

Boot windows usb media, install on the androided fresh partition without format, remove usb media after reboot, finish the install, reboot.
No more dualboot, start in windows. You can remove grub and android folders

Install grub2win, launch it, add a new entry, edit by selecting an debian entry, name it batocera, select the share partition (can't select others), apply, close grub2win
Open c:/grub2/grub.cfg with notepad, search the new batocera entry,
remove the 4 first lines with words "root" or "uuid"
modify the 5th line with the word "root" to:
linux /vmlinuz verbose nomodeset
add a line:

chainloader +1
Save, close notepad, restart.

Enjoy your brand new dualboot, press a key to start if ask

(Maybe someone could improve the grub.cfg for us, to remove the warning about "disk adress" in grub2win)

adamsturman

gregouze77 Could you show us what the grub.cfg looks like after you edit it please? I tried following what you said and it didn't work, and I double checked and I think I followed what you said correctly.

tech29

tech29 i forgot, you need to create and activate the NTFS partition as primary in command prompt. It will NOT work using any tool I kmow of, you will have to google around for those commands. I have my notes somewhere, but i just had a baby and my office is a complete mess.

I can say tho, this should work. The EFI.boot will be tricky. Theres another app I use to rewrite the MBR.

If i could find an app to make an image of both a windows system and linux within the same complete image.

Nevertheless, if i cant get it to work, ill just install botacera to a 512ssd and keep the win 10pro n on the nvme.

Fyi, windows pro n has much less bloatware. Also, head over to GetHub and use the Sophia bloatware removal script. There are over 250 hodden apps slowing down 10. If you know what ur doing, you’ll get win 7 64 speeds.

Finally, install windows update stop. Ypu can set it for only security updates.

Oh yeah after updates MS tries to slip some bloat back in, so run sophia or O&O stop after every update.

Okay im hoing to bed, gpod luck!

blaze2051

tech29 win10 LTSB has even less blotware, then if you like you can get an win10 lite or ultra lite dedicated just for a gaming pc look it up on goggle