[coreboot] How to give control to bootable USB

[Dhanasekar Jaganathan]

Hi Zoran,

Thanks for the info.

With previously attached grub.cfg + Vendor BIOS, I can able to install ONIE
from USB.
But with  Coreboot + GRUB2 + previously attached grub.cfg, I am unable to
install ONIE from USB.

I am going to try your changes, I will let you know.

Thanks,
Dhanasekar

On Thu, Jun 15, 2017 at 6:51 PM, Zoran Stojsavljevic <
zoran.stojsavljevic at gmail.com> wrote:

> Hello Dhanasekar,
>
> This, I guess, is not (entirely) correct:
>
> menuentry "ONIE: Embed ONIE" --class gnu-linux --class onie {
>   echo    "ONIE: Embedding ONIE ..."
>   onie_entry_start
>   *linux   /vmlinuz* $ONIE_CMDLINE_LINUX boot_reason=embed
> install_url=file:///lib/onie/onie-updater
>  * initrd  /initrd.xz*
>   onie_entry_end
>
> You should have something similar to the following:
>
> menuentry "ONIE: Embed ONIE" --class gnu-linux --class onie {
>   echo    "ONIE: Embedding ONIE ..."
>   onie_entry_start
>   set root='hdX,msdosY' ## hdX is your USB stick, Y partition, U R booting
> from, U should find going to GRUB2 monitor (with > prompt)
>   set isofile=/<dir path>/ONIE-live-XYZ.iso ## or whatever your ONIE...
> .iso image is named
>   loopback loop $isofile
>   *linux  (loop)/live/vmlinuz* $ONIE_CMDLINE_LINUX boot_reason=embed
> install_url=file:///lib/onie/onie-updater
>   *initrd (loop)/live/initrd.xz*
>   onie_entry_end
>
> Please, investigate a bit more using google.com! And let us know if you
> did solve the problem (post the final grub2 menyentry which works for you).
>
> Hope this helps to the whole community. ;-)
>
> Zoran
>
> On Thu, Jun 15, 2017 at 2:33 PM, Dhanasekar Jaganathan <
> jdhanasekarmca at gmail.com> wrote:
>
>> Hi Nico,
>>
>> Sorry, It is typo. I have tried with *configfile
>> (usb0)/boot/grub/grub.cfg* only..
>>
>> with a new *boot/grub/grub.cfg*, I am getting following error,
>>
>> *error: file '/vmlinuz' not found.*
>>
>> *error: you need to load the kernel first. *
>>
>>
>> FYR, I have attached  /boot/grub/grub.cfg(which is present in USB).
>>
>> Thanks,
>> Dhanasekar
>>
>>
>>
>>
>>
>> On Thu, Jun 15, 2017 at 4:59 PM, Nico Huber <nico.h at gmx.de> wrote:
>>
>>> On 15.06.2017 07:31, Dhanasekar Jaganathan wrote:
>>> > Hi Nico/Taiidan,
>>> >
>>> > After entering "*syslinux_configfile (*", when I press *TAB, I* I am
>>> not
>>> > seeing anything (nothing is coming)..
>>> >
>>> > So, I have tried this command *"syslinux_configfile
>>> > (usb0)/boot/grub/grub.cfg" *and got the error (Kernel without label).
>>>
>>> Read what Taiidan wrote carefully:
>>>
>>> >>>> also configfile (ahci0,msdos1)/grub2/grub.cfg to load a grub cfg
>>>
>>> For a grub.cfg, it's a plain *configfile* (not syslinux_configfile).
>>>
>>> Nico
>>>
>>> >
>>> > My USB ONIE installers has following files,
>>> >
>>> > */initrd.xz*
>>> >
>>> > */vmlinuz*
>>> >
>>> > */boot/boot.cat <http://boot.cat>*
>>> >
>>> > */boot/eltorito.img*
>>> >
>>> > */boot/grub/gurb.cfg*
>>> >
>>> > */boot/i386-PC/ *.mod (Lot of .mod files)*
>>> >
>>> >
>>> > Thanks,
>>> > Dhanasekar
>>> >
>>> >
>>> >
>>> > On Thu, Jun 15, 2017 at 5:01 AM, Nico Huber <nico.h at gmx.de> wrote:
>>> >
>>> >> Hi Dhanasekar,
>>> >>
>>> >> On 14.06.2017 11:21, Dhanasekar Jaganathan wrote:
>>> >>> Hi Taiidan,
>>> >>>
>>> >>> My USB ONIE installers don't have "isolinux/syslinux.cfg". It has
>>> >>> "boot/grub/grub.cfg".
>>> >>>
>>> >>> When I try to run "syslinux_configfile (usb0)/boot/grub/grub.cfg" in
>>> GRUB
>>> >>> command line, I am getting "*kernel without label*" error.
>>> >>>
>>> >>> Please provide your commands
>>> >>
>>> >> Taiidan already told you the correct command name (33 lines below).
>>> You
>>> >> might have missed it ;)
>>> >>
>>> >> Nico
>>> >>
>>> >>>
>>> >>> Thanks,
>>> >>> Dhanasekar
>>> >>>
>>> >>> On Wed, Jun 14, 2017 at 3:22 AM, Taiidan at gmx.com <Taiidan at gmx.com>
>>> >> wrote:
>>> >>>
>>> >>>> On 06/13/2017 10:22 AM, Dhanasekar Jaganathan wrote:
>>> >>>>
>>> >>>> Hi All,
>>> >>>>>
>>> >>>>> I am trying to install ONIE from USB which has ONIE installer.
>>> >> Actually, I
>>> >>>>> am using GRUB2 as a payload.  If Coreboot display list of bootable
>>> >>>>> device,I
>>> >>>>> can select USB which will install a OS in the hard disk.  As I
>>> >> understood
>>> >>>>> that Coreboot won't display list of available bootable device (not
>>> like
>>> >>>>> vendor bios).I don't know how to give control to bootable USB or
>>> boot a
>>> >>>>> bootable USB by coreboot. Can you please help me on this?.
>>> >>>>>
>>> >>>>>
>>> >>>>> Thanks,
>>> >>>>> Dhanasekar
>>> >>>>>
>>> >>>> Assuming you are booting a standard linux distro iso:
>>> >>>> syslinux_configfile (*TAB* to see what is available
>>> >>>>
>>> >>>> then simply for instance syslinux_configfile (usb0,msdos1)/isolinux/
>>> >> syslinux.cfg
>>> >>>> (or w/e)
>>> >>>>
>>> >>>> also configfile (ahci0,msdos1)/grub2/grub.cfg to load a grub cfg
>>> >>>>
>>> >>>> Ideally you would add a grub cfg to the coreboot image that does
>>> >> something
>>> >>>> like load a config file from a specified local disk so that it is
>>> easy
>>> >> to
>>> >>>> update (ie: no re-flashing) instructions for that are on the wiki.
>>> >>>>
>>> >>>> SeaBIOS would provide the classic AMI style F12 selection menu, but
>>> I
>>> >>>> don't like it due to how many times I have accidentally enabled
>>> option
>>> >> rom
>>> >>>> execution by forgetting to include the configuration file.
>>> >>>>
>>> >>>
>>> >>>
>>> >>>
>>> >>
>>> >>
>>> >
>>>
>>>
>>
>> --
>> coreboot mailing list: coreboot at coreboot.org
>> https://mail.coreboot.org/mailman/listinfo/coreboot
>>
>
>
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