[coreboot] How to give control to bootable USB

[Dhanasekar Jaganathan]

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.
> >>>>
> >>>
> >>>
> >>>
> >>
> >>
> >
>
>
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