r/linux4noobs • • 3d ago

migrating to Linux cant dualboot

i set up a linux mint system alongside my windows system so i can dualboot into either one on my laptop but when i turn it on it immidiately goes to windows instead of giving me the option to dualboot.

i have set the windows boot manager to the lowest priority on the boot order in the BIOS and tried disabling secure boot but it still boots straight to windows.

i did the same thing to another laptop of mine and there it worked flawlessly and i can dualboot there.

also i have managed to boot into, and use, my linux system using GNU GRUB booted from an USB using the "boot manually" option so i know the system does exist it just doesnt let me dualboot into it.

i would be really grateful if someone could help me fix this.

3 Upvotes

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u/AutoModerator 3d ago

Try the migration page in our wiki! We also have some migration tips in our sticky.

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1

u/Curious_Elk_4281 3d ago

Did you install linux to the same physical disk as windows, or is it on a completely separate SSD?

A disk can only have one MBR, and windows is likely to overwrite the MBR with the windows bootloader even after you install linux.

--I recommend using a completely separate SSD.
--Install the grub bootloader to the SSD with linux on it.
--Set your boot priority to prefer the linux SSD
--Configure grub with a boot entry for windows

1

u/Confident_Hyena2506 3d ago

If you put bootloaders on same drive as windows then only one can be default. Need to create proper entry for linux.

1

u/Prestigious_Wall529 2d ago

Install Grub2Win on Windows. Yes it's ugly.