12 Replies Latest reply on May 2, 2017 2:00 AM by mohamedshaharris_intel

Fallback option does not work on grub.

Nikunj_Patel Mar 1, 2017 1:19 AM

Hello everyone;

We are looking for fail-safe boot-up strategy for our product based on Intel quark.We have been use the "meta-intel-quark" meta-layer for grub.

Now we are adding the "fallback" option in "grub.conf" file as below;

default saved

timeout 10

fallback 1

color white/blue white/cyan

title Quark X1000 First-kernel-MassStorage initrd-MassStorage RootFS-MassStorage IMR-On IO-APIC/HPET NoEMU debug

root (hd0,0)

kernel /bzImage root=/dev/ram0 console=ttyS1,115200n8 earlycon=uart8250,mmio32,$EARLY_CON_ADDR_REPLACE,115200n8 reboot=efi,warm apic=debug rw LABEL=boot debugshell=5 rootimage=image-full-quark.ext3

initrd /core-image-minimal-initramfs-quark.cpio.gz

savedefault fallback

title Quark X1000 second-kernel-MassStorage initrd-MassStorage RootFS-MassStorage IMR-On IO-APIC/HPET NoEMU debug

root (hd0,1)

kernel /bzImage root=/dev/ram0 console=ttyS1,115200n8 earlycon=uart8250,mmio32,$EARLY_CON_ADDR_REPLACE,115200n8 reboot=efi,warm apic=debug rw LABEL=boot debugshell=5 rootimage=image-full-quark.ext3

initrd /core-image-minimal-initramfs-quark.cpio.gz

savedefault fallback

But after added this option board is not boot and it show the error message as below:

Error 15: File not found

Quark GRUB Recovery shell

[ Minimal BASH-like line editing is supported. For the first word, TAB

lists possible command completions. Anywhere else TAB lists the possible

completions of a device/filename.]

grub>

Please provide us the support to solve this issue as soon as possible.

Thanks in advance

1. Re: Fallback option does not work on grub.

mohamedshaharris_intel Mar 1, 2017 6:52 PM (in response to Nikunj_Patel)

Hi,

Are you setting with secure boot with your quark?
Do you have this file "grub.conf.csbh" in "/media/realroot/boot/grub/" ?
If you have this file ""grub.conf.csbh", you need to re-assigned again the key for this grub.conf.

Please do confirm the file and update to us.

Regards,
Intel Customer Supports
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2. Re: Fallback option does not work on grub.

Nikunj_Patel Mar 1, 2017 11:08 PM (in response to mohamedshaharris_intel)

Thanks for your quick reply.

Are you setting with secure boot with your quark? NO

We are not using the secure boot

Thanks in advance.
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3. Re: Fallback option does not work on grub.

Nikunj_Patel Mar 6, 2017 4:52 AM (in response to Nikunj_Patel)

Hello;
I have check in detail and found that there was no issue in fallback option but there was problem in savedefault option. I have check the source code of the grub 0.97 and there was failed the below api
file = simple_open_file (loaded_image->device_handle,saved_default_file, 1); from grub_save_saved_default function in efimisc.c file.

Please help me to solve this issue as soon as possible.

Thanks in advance.
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4. Re: Fallback option does not work on grub.

Nikunj_Patel Mar 7, 2017 7:17 AM (in response to Nikunj_Patel)

any update?

Thanks in advance.
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5. Re: Fallback option does not work on grub.

mohamedshaharris_intel Mar 7, 2017 6:03 PM (in response to Nikunj_Patel)

Hi,

Could you provide the the path you get the source code of the grub 0.97.
It could be on you build machine?
I want to investigate more.

Regards,
Intel Customer Supports
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6. Re: Fallback option does not work on grub.

Nikunj_Patel Mar 8, 2017 9:27 PM (in response to mohamedshaharris_intel)

Thanks for your quick reply.....

Please check below link of recipe which we are using for grub loader.

Recipe LInk: http://git.yoctoproject.org/cgit/cgit.cgi/meta-intel-quark/tree/recipes-bsp/grub/grub_0.97.bb

This recipe will fetch the source code from below link and add the patch in source code.

Source code link: GitHub - intel-iot-devkit/grub-fedora: Mirror of the old grub-fedora repo hosted on github.com/vathpela/grub-fedora used…
Patch file Link:meta-intel-quark - Intel Quark platform support

Thanks in advance.
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7. Re: Fallback option does not work on grub.

Nikunj_Patel Mar 9, 2017 9:08 PM (in response to Nikunj_Patel)

any update?

Thanks in advance.
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8. Re: Fallback option does not work on grub.

Nikunj_Patel Mar 14, 2017 11:55 PM (in response to Nikunj_Patel)

any update?

Thanks in advance.
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9. Re: Fallback option does not work on grub.

Nikunj_Patel Mar 17, 2017 7:17 AM (in response to Nikunj_Patel)

any update?

Thanks in advance.
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10. Re: Fallback option does not work on grub.

mohamedshaharris_intel Mar 30, 2017 12:23 AM (in response to Nikunj_Patel)

Hi Nikunj,

We are still trying to get resolve this issue for savedefault fallback.
We are trying to dig many information to get this solve.

Regards,
Intel Customer Supports
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11. Re: Fallback option does not work on grub.

mohamedshaharris_intel May 2, 2017 1:59 AM (in response to mohamedshaharris_intel)

Hi Nikunj,
.
After discussion with the team, I suggest you to open a new case at this forum Intel® Quark™ Microcontrollers .
Engineers in this forum will help you on this issue.

Regards,
Intel Customer Support
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12. Re: Fallback option does not work on grub.

mohamedshaharris_intel May 2, 2017 2:00 AM (in response to Nikunj_Patel)

Hi Nikunj,
.
After discussion with the team, I suggest you to open a new case at this forum Intel® Quark™ Microcontrollers .
Engineers in this forum will help you on this issue.

Regards,
Intel Customer Support
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