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RE: Cannot boot from dual bios/uefi boot CD

From: John Frankish
Subject: RE: Cannot boot from dual bios/uefi boot CD
Date: Sun, 1 Mar 2015 11:55:21 +0400

> Unfortunately --install-modules list is also mandatory. So at this point the 
> only workaround is to put common modules in
>  --install-modules and add others manually, like
> grub-mkrescue
> --install-modules="normal
> linux ..." ... /boot/grub/x86_64-efi/efi_gop.mod=/path/to/efi_gop.mod
> Not very elegant but should work.

Thanks - this works for me:

sudo grub-mkrescue --install-modules="bitmap bitmap_scale boot bufio crypto 
extcmd font fshelp gettext gfxmenu gfxterm linux ls minicmd mmap normal 
part_acorn part_amiga part_apple part_bsd part_dfly part_dvh part_gpt 
part_msdos part_plan part_sun part_sunpc relocator terminal trig video 
 -o myiso.iso iso

..and shaves 4mb from the size of the iso :)

In case you're interested, the following link (menu item "tcw") boots 
(eventually) to a simple gui in both legacy-bios and uefi modes and all for 

Thanks for all of your help with this.

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