grub4efi issue with spaces in chainloader parameters

[steve6375]

If passing a filename using vdisk= it does not accept spaces. I tried with and without the \ in front of the space

However, in grub4dos, I use kernel and it does work with both leading \ or no \ in front of space

kernel /ipxe.krn vdisk=/_ISO/LINUX/Ubuntu Mint.vdi.vtoy
initrd /vdiskchain

[steve6375]

The same chainloader command line under grub2 UEFI64 (grubfm) works OK. chainloader (${user})/boot/grubfm/vdiskchain vdisk=${grubfm_path}

[yaya2007]

The chainloader of G4E directly passes the parameters to the UEFI firmware for processing. have a try：“vdisk=/_ISO/LINUX/Ubuntu Mint.vdi.vtoy"

The example of grub2 is different. It uses variables, which will resolve the space parameter.

[steve6375]

using double-quotes works :-) “vdisk=/_ISO/LINUX/Ubuntu Mint.vdi.vtoy" Is this a bug? Does help text need modifying to specify quotes needed ?

[steve6375]

P.S. The \ character must be removed - or else error

[steve6375]

:.vtoy
# path must not have device name - must remove \ preceding spaces
errorcheck off
call :getpath %ISOC%
chainloader (bd)/_ISO/e2b/grub/vdiskchain "vdisk=%getpath%"
boot

:getpath
set getpath=%~p1%~n1%~x1
echo -e %getpath% | set getpath=
goto :eof

[yaya2007]

Does help text need modifying to specify quotes needed `? I think it's Microsoft's rule

[steve6375]

The same chainloader command line under grub2 UEFI64 (grubfm) works OK. chainloader (${user})/boot/grubfm/vdiskchain vdisk=${grubfm_path}

no double-quotes are used for grub2