Member Avatar for chinnaACB

I install windows 7 in fedora running system without overwrite the previous OS.but the problem is if i install windows 7, it shows 2 os's when starting my system.I want to boot my system in fedora by default.what's the solution??????????????

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  • Latest Post Latest Post by belocus

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Common cause and quick plan: installing Windows after Fedora often changes the boot controller or boot order so the Windows entry becomes the visible/default choice. If both OS entries appear at startup, the system is most likely using GRUB2 and Windows was simply added as another menu entry; if the machine boots straight into Windows, the Windows boot manager probably replaced GRUB. The sensible options are (A) make Fedora the GRUB default, (B) change the UEFI BootOrder so Fedora/GRUB comes first, or (C) restore GRUB if Windows overwrote it. was right to point at GRUB; ’s VM suggestion avoids this entire class of problems; ’s install-order tip is good for fresh installs.

Detect boot mode and list grub entries:

# UEFI check
if [ -d /sys/firmware/efi ]; then echo "UEFI"; else echo "BIOS"; fi

# List menu entries (try both paths)
sudo grep "^menuentry " /boot/grub2/grub.cfg | cut -d"'" -f2
sudo grep "^menuentry " /boot/efi/EFI/fedora/grub.cfg | cut -d"'" -f2

Make Fedora the default under GRUB2 (when GRUB controls boot): back up /etc/default/grub, set GRUB_DEFAULT=saved and then use the exact menuentry name from the grep output with grub2-set-default. After that regenerate the config:

sudo grub2-set-default "Fedora Linux (…exact menuentry…)"
# BIOS
sudo grub2-mkconfig -o /boot/grub2/grub.cfg
# UEFI
sudo grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg

If UEFI’s Windows Boot Manager is first, use efibootmgr to inspect and reorder entries (put Fedora’s BootXXXX first):

sudo efibootmgr -v
sudo efibootmgr -o 0003,0001,0002   # example: put Fedora's ID first

If GRUB was overwritten and Fedora won’t boot, the normal recovery is a Fedora live USB, mount/chroot into the installed system and reinstall GRUB (use grub2-install for legacy/BIOS or recreate the EFI entry for UEFI), then regenerate the grub config. Back up configuration files before edits and avoid running installer commands on the wrong disk.

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Member Avatar for alaa sam

So what is wrong with the grub ?? and I didn't get what you want exactly , what did you mean by

I install windows 7 in fedora running system
??
windows 7 isn't applicatuin to be installed in fedora

Member Avatar for rubberman

To run it in a running Fedora system, you need a virtual machine manager such as VMware or VirtualBox so you can install/run Windows in a virtual machine. That way, your Fedora applications continue to run while you simultaneously run Windows applications. I do that all the time.

Member Avatar for belocus
if you want dual boot system
  1. install windows 7 in first partition or /dev/sda1
  2. then istall distro linux your like
  3. grub will auto detect your windows
use virtual box or qemu

$ qemu -cdrom YOUR_DISTRO.iso -boot d -m 1024

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