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On my computer I have two operating systems installed, Windows 10 and Kali Linux. The problem is that they are on separate bootloaders and on separate hard drives. I want to be able to add one of the operating systems to the other bootloader so that I can boot both operating systems from the same bootloader.

What I have tried

1) Using EasyBCD on Windows 10, that brings this message and prevents me from adding a Linux entry.

enter image description here

2) Using update-grub and grub-install /dev/sbd4 (sbd4 has Win10 on it)

The update-grub doesn't detect Windows 10 and add it even if os-prober is run before hand.

The grub-install /dev/sbd4 prints the following output

Installing for i386-pc platform.
grub-install: warning: File system `nfts` doesn't support embedding.
grub-install: error: embedding is not possible, but this is required for cross-disk install

3) Writing a manual entry into /etc/grub.d/40_custom like so

menuentry 'Windows 10' {
set root='(hd1, msdos4)'
chainloader +1
}

Produces the following output when update-grub is run

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
error: out of memory.
error: syntax error.
error: Incorrect command.
error: syntax error.
Syntax error at line 203
Syntax errors are detected in generated GRUB config file.
Ensure that there are no errors in /etc/default/grub
and /etc/grub.d/* files or please file a bug report with
/boot/grub/grub.cfg.new file attached.
done

I don't know what else to do/try to make the operating systems go on the same bootloader. Any help would be appreciated

5
  • I think one bootloader can only handle either EFI or Legacy. This is definitely true if on the same harddrive, and I don't think the behaviour changes when on two drives. If I am correct in this, you should reinstall Windows in legacy mode, or install kali-linux in EFI mode forums.kali.org/…
    – BramMooij
    Nov 22 '16 at 13:28
  • @BramMooij I'm looking to reinstall windows 10 in legacy mode but how do I do that? I can't seem to find a way to do it
    – Dan
    Nov 22 '16 at 20:01
  • If your BIOS can be set to legacy mode only it cannot be installed in EFI mode. Also it should list the mode in the boot menu. msdn.microsoft.com/en-us/windows/hardware/commercialize/…
    – BramMooij
    Nov 22 '16 at 21:40
  • @BramMooij I tried this but I got We couldn't create a new partition or locate an existing one when I tried to install
    – Dan
    Nov 22 '16 at 21:43
  • You probably have to fully wipe it first, perhaps under linux.
    – BramMooij
    Nov 24 '16 at 18:21

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