Serious problem when installing Kali linux with windows 8.1(dual boot)

did you follow a tutorial? if so which one? is grub or any other bootloader installed?

 

you're not providing much information, basically you will need to either edit or reinstall the bootloader,
if you have grub you should have grub rescue and you can edit it from there,
or you can run live cd then mount your harddrive and edit it from there,

however with different partitions i'm not sure what's the proper command to add for win8,
but you can watch some videos on youtube or tutorials for dual booting to find that

 

First I would use Windows install media and get a command prompt after you select your language and clicking "Repair this PC" or something in the lower left hand corner.

Then issue the two following commands:

Code:

bootrec /fixboot
bootrec /fixmbr

If that fixes your Windows install and can still see your Kali partitions then let us know and we can continue from there.

 

What is the setup? ie; BIOS/MBR or UEFI?

If it's BIOS/MBR I have a method to install GRUB from a live Kali environment. If it's UEFI then I don't really know, John Sutherland might be more help there.

 

Boot Kali live media (DVD or USB) then open a terminal and enter commands:

Code:

# fdisk /dev/sda
# p

Figure out which partition is the Kali / (root) partition.
Example; /dev/sda5
Most likely you will have 2 Linux partitions, one small (SWAP) and one large (root).

Code:

# q

Then enter these commands:

Code:

# mount /dev/sdaX /mnt
  (X = Kali / partition number)
# mount --bind /dev /mnt/dev
# mount --bind /dev/pts /mnt/dev/pts
# mount --bind /proc /mnt/proc
# mount --bind /sys /mnt/sys
# chroot /mnt
# grub-install /dev/sda
# update-grub
# exit
# umount /mnt/dev/pts
# umount /mnt/dev
# umount /mnt/proc
# umount /mnt/sys
# umount /mnt
# reboot

 

try

# apt-get install grub

or

# grub2-install /dev/sda

I have to dig out my kali 2 disc if those don't work.

 

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