[syslinux] memdisk - grub2

[Shao Miller]

On 8/10/2011 18:36, Karl Schmidt wrote:
> I've been trying to use memdisk with grub2 to boot some iso images -( 
> I've done this without any problem with pxe )
>
> There is a memdisk.mod in /boot/grub/ and I've seen some material 
> talking about this, but no example of a menu.
>
>
>
> After trying countless permutations - Right now I have :
>
> menuentry "Memtest-Plus 4.2" {
>         echo `hello`
>         insmod lvm
>         insmod part_msdos
>         insmod jfs
>         insmod memdisk iso
>         set root='(ssd-testing)'
>         search --no-floppy --fs-uuid --set 
> f9ae292b-b6a9-4f70-af7c-31987e766d37
> #        echo    'Loading memtest-Plus'
>        linux16  memdisk
>        initrd16 memtest-plus/memtest86+-4.20.iso
> #        echo    'Loading initial ramdisk...'
> }
>
> I've done a lot of google searches and even downloaded the source 
> trying to get a glimmer of the syntax - so far with out joy...
>
> I've verified the set root and lvm part is right with normal boot 
> setups..
>
>
> I tried putting a copy of memdisk in /boot/
>
> If anyone has a 40_custom file that boots iso using in memdisk.mod - 
> please post it. Everything I find is for grub1..

MEMDISK is a "kernel" and the 'iso' parameter (being a MEMDISK parameter 
for booting .ISOs) belongs in the "kernel command line."  I have no clue 
what the point of 'memdisk.mod' would be; maybe you don't need it.  - Shao