Re: Loading modules with an embedded config file seems to fail

[Andrei Borzenkov]

On Thu, Oct 8, 2015 at 4:55 PM, Colin Close <address@hidden> wrote:
> I have created an embedded image like this:-
> chroot "$CHROOTNAME" /usr/bin/grub2-mkimage -d "$GRUB_LIB" -O i386-pc -o 
> "$GRUB_IMG" -p /boot/grub \-c /ISO/boot/grub/start_cfg  iso9660 biosdisk test
> cat "$CHROOTNAME"/"$GRUB_LIB"/boot.img "$CHROOTNAME"/"$GRUB_IMG" > 
> "$ISOROOTNAME"/boot/grub/grub2-embed_img
> cat "$CHROOTNAME"/"$GRUB_LIB"/cdboot.img "$CHROOTNAME"/"$GRUB_IMG" > 
> "$ISOROOTNAME"/boot/grub/grub2-eltorito.img
>
> and used the following options with xorriso to build an iso image
>
> XORRISO_OPTIONS1=" -b boot/grub/grub2-eltorito.img -no-emul-boot 
> -boot-info-table --embedded-boot $ISOROOTNAME/boot/grub/grub2-embed_img 
> --protective-msdos-label"
>
> The embedded image contain this start_cfg file
>
> if [ "${grub_platform}" == "efi" ]; then
> search --no-floppy --set=root --fs-uuid '%GRUB_UUID%'
> set prefix=($root)/boot/grub
> set efi=1
> source ($root)/boot/grub/grub.cfg
> fi
> insmod part_apple
> insmod part_bsd
> insmod part_gpt
> insmod part_msdos
> set bios=1
> set efi=0
> source ($root)/boot/grub/grub.cfg
>
> When I boot the iso in BIOS mode I get the following errors reported
> Unknown command ` if '
> Unknown command ` search '
> Unknown command ` source '
> Unknown command ` fi '
> Unknown command ` source '
>

Embedded config is processed using rescue parser which does not
understand compound statements. This has been discussed just recently
on help-grub. The guy intended to open bug report for misleading
documentation but apparently never came around to do it.

> Can anyone help me with this I have tried every possible strategy and nothing 
> seems to work. Currently the config file is set up so it falls through to the 
> bios boot and the flags get set right and things do work but obviously this 
> is not ideal.
> Best,
> Colin Close
> OpenMandriva
>
> _______________________________________________
> Grub-devel mailing list
> address@hidden
> https://lists.gnu.org/mailman/listinfo/grub-devel