Re: [Xen-users] [Xen-devel] Query for running Xen on ARM

[Chaitanya Deshpande <chaitanyagd11@xxxxxxxxx>]

Hi Julien, Stefano,

Thanks you so much for helping me. I able to boot xen.

Your help has been highly appreciated !!

After opening qemu in efi mode I was trapped in Grub mode so I just have to press esc from the start to remove myself from Grub mode to EFI Shell.

Cheers,

Chaitanya

On Thu, May 31, 2018 at 2:28 AM, Julien Grall <julien.grall@xxxxxxx> wrote:

Hi,

Moving this discussion to Xen users.

Chaitanya, can you please configure your e-mail client to quote with '>'?

On 30/05/18 18:21, Chaitanya Deshpande wrote:

On Wed, May 30, 2018 at 9:44 AM, Julien Grall <julien.grall@xxxxxxx <mailto:julien.grall@xxxxxxx>> wrote:

    Hi,

    On 05/30/2018 05:18 PM, Stefano Stabellini wrote:

        I am not sure what the problem is. I would compared your
        partition table
        with a standard Linux distro UEFI image [1] to see if there are any
        important differences. Checkout the UEFI spec [2] section 13.3.1
        onward
        to read the details of the partitions and filesystem requirements.


    I may have an idea of what's going on. Looking at the picture sent,
    The disk you show seems to be the one used by your Ubuntu running in
    VirtualBox. This seems to be confirmed by your previous e-mail where
    you mention sda1. Am I right?

    Chaitanya - Yes you are absolutely right. I have Virtualbox on which I am running Ubuntu.  And I have sda1 disk (bootable) which is FAT32
    (1st partition for mapping fs0:).

    You need to create that partition in the image used by QEMU. But
    likely this will already be there if you use a pre-built image (e.g
    ubuntu or else). I am assuming you were booting Linux using UEFI.


   Chaitanya: I able to boot Linux through UEFI because I have root = rootfs.cpio which I created from buildroot. And in config file of Linux I have put INITRAMFS =        "rootfs.cpio" . So do you want me to give root=/dev/sda1 while booting Linux on qemu?

I don't understand what you are trying to achieve with creating a FAT partition on your VBOX disk. The FAT partition should have been created in the image for the guest. On that image you need multiple partition:
        1) FAT partition for UEFI
        2) EXT* (or else) partition(s) for your guest filesystem

This requires a bit of work to build your own UEFI image. You are better to download a distro ready image [1] that could directly be used.

Cheers,

[1] https://cloud-images.ubuntu.com/xenial/current/xenial-server-cloudimg-arm64-uefi1.img

--
Julien Grall

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