Re: Kernel options not passing in EFI image?

[Avi Deitcher]

linux. It is the module "linux". I have no idea what/who/why/where.

This line works:

grub-mkimage -O x86_64-efi -i EFI/BOOT/BOOTX64.EFI
--config=boot/grub/grub.cfg --prefix='()/boot/grub' --compression=auto disk
part_msdos fat iso9660

This line fails:

grub-mkimage -O x86_64-efi -i EFI/BOOT/BOOTX64.EFI
--config=boot/grub/grub.cfg --prefix='()/boot/grub' --compression=auto disk
part_msdos fat iso9660 linux


On Tue, May 24, 2016 at 11:09 AM, Avi Deitcher <address@hidden> wrote:

> Could it be too *many* modules? (or at least the wrong ones)?
>
> This fails:
>
> cp -r /usr/lib/grub/x86_64-efi ${CD}/boot/grub
> cd ${CD} && grub-mkimage -O x86_64-efi -i EFI/BOOT/BOOTX64.EFI
> --config=boot/grub/grub.cfg --prefix='()/boot/grub' --compression=auto disk
> part_msdos part_gpt linux loopback normal configfile search search_label
> true iso9660 efi_uga efi_gop gfxterm gfxmenu gfxterm_menu fat ls cat tar
> echo lsmmap mincmd gzio gettext exitcmd boot fshelp
>
> This succeeds:
>
> cp -r /usr/lib/grub/x86_64-efi ${CD}/boot/grub
> cd ${CD} && grub-mkimage -O x86_64-efi -i EFI/BOOT/BOOTX64.EFI
> --config=boot/grub/grub.cfg --prefix='()/boot/grub' --compression=auto disk
> part_msdos fat iso9660
>
> Huh??
>
>
>
> On Tue, May 24, 2016 at 11:02 AM, Avi Deitcher <address@hidden> wrote:
>
>> The list was really big, so I put it in a gist:
>> https://gist.github.com/deitch/d5c52c29288864e5763c86c09ff7474f
>>
>> I also sorted them and did a diff.
>>
>>
>>
>> On Tue, May 24, 2016 at 10:43 AM, Avi Deitcher <address@hidden> wrote:
>>
>>> OK, will do it right now.
>>>
>>> Interesting note: why does mkrescue have --prefix='()/boot/grub' as an
>>> option to mkimage? I get that rather than loading all of the modules into
>>> the grub binary, it puts them on the iso9660 filesystem and then accesses
>>> them that way, but what does '()' signify? That isn't any one known disk
>>> like (memdisk) or (cd0) or (hd0) etc.
>>>
>>> On Tue, May 24, 2016 at 10:40 AM, Andrei Borzenkov <address@hidden>
>>> wrote:
>>>
>>>> On Tue, May 24, 2016 at 10:12 AM, Avi Deitcher <address@hidden>
>>>> wrote:
>>>> > Confirm that grub-mkrescue *does* pass the cmdline options along.
>>>> Which
>>>> > almost definitely means my mkimage build is slightly (but critically)
>>>> > different than what mkrescue does.
>>>> >
>>>> > I ran mkrescue -v, the mkimage line was:
>>>> >
>>>> > grub-mkimage --directory '/usr/lib/grub/x86_64-efi' --prefix
>>>> '()/boot/grub'
>>>> > --output 'somefile.efi' --format 'x86_64-efi' --compression 'auto'
>>>> --config
>>>> > '/tmp/grub.9g6zmZ' 'part_msdos' 'fat' 'iso9660'
>>>> >
>>>> > Much simpler command line, yet it works?
>>>> >
>>>>
>>>> mkerscue makes *full* grub available in ISO, so everything that it
>>>> needs at boot time is autoloaded from image. Image itself only needs
>>>> just enough to access ISO after initial boot.
>>>>
>>>> It would be interesting to find out what is missing in your case. You
>>>> could start with booting rescue into CLI, issuing the same "linux" and
>>>> "initrd" commands and comparing the list of modules (lsmod). Use "set
>>>> pager=1" as module list is likely longer than normal screen.
>>>>
>>>
>>>
>>>
>>> --
>>> Avi Deitcher
>>> address@hidden
>>> Follow me http://twitter.com/avideitcher
>>> Read me http://blog.atomicinc.com
>>>
>>
>>
>>
>> --
>> Avi Deitcher
>> address@hidden
>> Follow me http://twitter.com/avideitcher
>> Read me http://blog.atomicinc.com
>>
>
>
>
> --
> Avi Deitcher
> address@hidden
> Follow me http://twitter.com/avideitcher
> Read me http://blog.atomicinc.com
>



-- 
Avi Deitcher
address@hidden
Follow me http://twitter.com/avideitcher
Read me http://blog.atomicinc.com