Re: Kernel panics (in QEMU) when booting with GRUB2 + OVMF + QEMU.

[Andrei Borzenkov]

On Sun, Aug 16, 2015 at 8:25 AM, Mark Lee <address@hidden> wrote:
> On Saturday, August 15, 2015 08:31:42 PM Jordan Uggla wrote:
>> Specifically, while Mark entered something like "initrd
>> /boot/initramfs-foo-bar", and everything he had typed was echoed back
>> to him on screen as expected, the error message he received was (if I
>> recall correctly) something about the file "/boot/initra" not being
>> found. In other words, the error message indicated that somewhere the
>> file name entered had been truncated. I suspect that this happened
>> when grub was interpreting the grub.cfg as well, and thus the linux
>> command succeeded but the initramfs command failed, and while grub
>> still tried to boot, the missing initramfs resulted in the kernel
>> panic.
> That was a personal error. I was typing "/vmlinuz-linux ..." instead of "linux
> /vmlinuz-linux ..." . The same went for the initrd.
>
>> This, along with other symptoms from previous tries, seems to
>> indicate to me that there is memory corruption somewhere, either due
>> to a bug in grub or in OVMF.
> I have reproduced the error yet again. It is the same error as I listed in the
> first post.

Error itself simply says that kernel cannot find root fs. It does not
say anything about why it happened.

>               Find pictures of the qemu OVMF error :
> https://drive.google.com/file/d/0Bx2cO4TT8XjeMTNLTHJRZzhiSHM/view?usp=sharing

You have incorrect kernel command line. It should be root=/dev/sda3
not root/dev/sda3.

> https://drive.google.com/file/d/0Bx2cO4TT8XjeM2dpS1RLQXJMdkE/view?usp=sharing
>
> Regards,
> Mark
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