So I am in a long-winded attempt to set up an ubuntu/windows8 dual boot. After running boot repair, there are 2 ubuntu entries (one is a recovery), 4 windows recovery entries, and a regular windows entry. the latter gives my an unknown command: drivemap, error: invalid EFI filepath
Browsing multiple other forums has led me to add
menuentry "Windows 8" {
insmod part_gpt
insmod chain
set root='(hd1,gpt4)'
chainloader /EFI/Microsoft/Boot/bootmgfw.efi
}
to my /etc/grub.d/40_custom
in order to add a working entry. The new entry gives me an invalid filesystem
error. The windows partition I'm looking for is either sdb5 or sdb9 (one is windows 8, the other is ubuntu) I'm not sure which. Any sugestions to fix either entry?
I got this computer last week and I've been trying to get a dual boot running since then. I can Access both windows 8 and ubuntu by switching the boot priority in my bios settings, but I'd like to access them through GRUB.