I recently installed Kali Linux on my windows 7 computer with the intention of being able to double boot. When I installed Kali, I had to install it in UEFI mode, because that was the only thing that worked. Upon booting the GRUB loader shows, but only Kali is on the list. I have tried various things to fix this, but nothing works. I was able to add an entry to the list by adding this to /etc/grub.d/40_custom:
menuentry "Windows 7 (loader) (on /dev/sda1)" {
insmod part_msdos
insmod ntfs
set root='(hd0,msdos1)'
chainloader +1
}
However I was unable to boot into it when selecting it from the menu. I got an error like "no UEFI found" or "invalid UEFI" or something like that.
If I do sudo update-grub or sudo update-grub next this is the output:
root@kali:~# sudo update-grub
Generating grub configuration file ...
Found background image: /usr/share/images/desktop-base/desktop-grub.png
Found linux image: /boot/vmlinuz-4.6.0-kali1-amd64
Found initrd image: /boot/initrd.img-4.6.0-kali1-amd64
Adding boot menu entry for EFI firmware configuration
done
I also tried doing sudo grub-install /dev/sda1, but then I got this output:
root@kali:~# sudo grub-install /dev/sda1
Installing for x86_64-efi platform.
GUID Partition Table Header signature is wrong: 0 != 5452415020494645
GUID Partition Table Header signature is wrong: 0 != 5452415020494645
GUID Partition Table Header signature is wrong: 0 != 5452415020494645
GUID Partition Table Header signature is wrong: 0 != 5452415020494645
GUID Partition Table Header signature is wrong: 0 != 5452415020494645
GUID Partition Table Header signature is wrong: 0 != 5452415020494645
Installation finished. No error reported.
I am wondering if windows 7 even supports UEFI at all, if it does, do anyone know how I can add it to the GRUB list?
I mounted /dev/sda1 to see what was there and I didn't find any .efi file. I found a file called bootmgr and copied it to /boot/efi/EFI and tried to boot from it by using the BIOS, but that didn't work. Maybe the issue is that I don't have an EFI file to boot windows from? If this is the case, how can I create one?
sudo parted -l outputs:
Model: ATA TOSHIBA MQ01ACF0 (scsi)
Disk /dev/sda: 500GB
Sector size (logical/physical): 512B/4096B
Partition Table: msdos
Disk Flags:
Number Start End Size Type File system Flags
1 1049kB 368MB 367MB primary ntfs
2 368MB 393GB 392GB primary ntfs
3 393GB 495GB 102GB extended
5 393GB 393GB 299MB logical ext4
6 403GB 473GB 70.0GB logical ext4
9 473GB 493GB 20.0GB logical ext4
7 493GB 495GB 1999MB logical linux-swap(v1)
8 495GB 495GB 199MB logical fat32 boot, esp
sudo parted -l?