Re: cbfsdisk not found

[Vladimir 'phcoder' Serbinenko]

On Fri, Mar 17, 2017, 00:01 Andrei Borzenkov <address@hidden> wrote:

On Fri, Mar 17, 2017 at 9:19 AM, Gailu Singh <address@hidden> wrote:
>>>What address it prints?
>
> I followed suggested steps and I see following print
>
> fs/cbfs.c:347: head=0xffffffff
>

Then you need to contact coreboot developers and discuss it. GRUB
looks at predefined location at address of cbfs. If this location
contains wrong address, there is nothing we can do here. We need
information how to discover cbfs using other means.

Coreboot had something called fmap under some cases that we currently don't support. I didn't look into this particular image. Where did coreboot image come from? 

>
>
> On Fri, Mar 17, 2017 at 8:57 AM, Andrei Borzenkov <address@hidden>
> wrote:
>>
>> 16.03.2017 22:43, Gailu Singh пишет:
>> >>> Try insmod cbfs
>> >
>> >>
>> > Trieed, it does not help. BTW cbfs is already included in my grub elf
>> > image
>> > so I don't think I need to do insmod.
>> >
>> > ./grub-mkstandalone --grub-mkimage=./grub-mkimage -O i386-coreboot -o
>> > default_payload.elf --modules='ls ahci pata ehci uhci ohci usb_keyboard
>> > usbms part_msdos ext2 fat at_keyboard part_gpt usbserial_usbdebug cbfs'
>> > --install-modules='linux search configfile normal cbtime cbls memrw iorw
>> > minicmd lsmmap lspci halt reboot hexdump pcidump regexp setpci lsacpi
>> > chain
>> > test serial multiboot cbmemc linux16 gzio echo help syslinuxcfg xnu affs
>> > afs bfs btrfs cbfs cpio cpio_be exfat ext2 fat hfs hfsplus iso9660 jfs
>> > minix minix2 minix2_be minix3 minix3_be minix_be newc nilfs2 ntfs odc
>> > procfs reiserfs romfs sfs squash4 tar udf ufs1 ufs1_be ufs2 xfs zfs
>> > password_pbkdf2 ' --fonts= --themes= --locales= -d grub-core/
>> > /boot/grub/grub.cfg=./coreboot.cfg
>> >
>> > This must be something else. AFAIK memdisk itself resides in CBFS,
>> > Strangely ls comman shows memdisk but not cbfsdisk
>> >
>>
>> This implies that cbfs address fails validation. Do not include cbfs in
>> image, boot and run
>>
>> set debug=cbfs
>> insmod cbfs
>>
>> What address it prints?
>>
>> >
>> > On Fri, Mar 17, 2017 at 12:52 AM, Vladimir 'phcoder' Serbinenko <
>> > address@hidden> wrote:
>> >
>> >>
>> >>
>> >> On Thu, Mar 16, 2017, 12:18 Gailu Singh <address@hidden> wrote:
>> >>
>> >>> Hi Experts,
>> >>>
>> >>> I am using grub2 with coreboot and configured with
>> >>> --with-platform=coreboot.
>> >>>
>> >>>
>> >>> I am able to load grub2 from coreboot. However when I run ls command,
>> >>> I
>> >>> do not see cbfsdisk. ls only shows
>> >>>
>> >>> (memdisk) (ahci0) (ahci0,msdos1) (ahci0,msdos2)
>> >>>
>> >>> I have added file in the cbfs as follows and need to access it but
>> >>> when I
>> >>> try (cbfsdisk)/myfile I get error disk 'cbfsdisk' not found.
>> >>>
>> >>> build/util/cbfstool/cbfstool build/coreboot.rom add -f myfile -n
>> >>> myfile
>> >>> -t raw
>> >>>
>> >>> Any idea how to access myfile on cbfsdisk?
>> >>>
>> >> Try insmod cbfs
>> >>
>> >>>
>> >>> Thanks.
>> >>> _______________________________________________
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>> >>> https://lists.gnu.org/mailman/listinfo/grub-devel
>> >>>
>> >>
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>> >>
>> >
>> >
>> >
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