Re: [Qemu-devel] HDD problem with Xilinx virtex-ml507 board

[Edgar E. Iglesias]

On Mon, Jun 13, 2011 at 04:05:59PM +0800, Lê ?????c Tài wrote:
>    Hi,
>    I have a new question about QEMU for virtex-ml507.
>    Can QEMU display X11 on this board?
>    Because I don't see any VGA output when remove "-nographic" option.
>    QEMU just display "monitor console" and "serial console".
>    Tai
>      __________________________________________________________________
> 
>    Từ: Lê Äức Tà i <address@hidden>
>    Äến: Edgar E. Iglesias <address@hidden>
>    Cc: Alexander Graf <address@hidden>; "address@hidden"
>    <address@hidden>
>    Gá»i ngà y: 10:56:14, Thứ Bảy, 11 tháng 6 2011
>    Chủ Äá»: [Qemu-devel] HDD problem with Xilinx virtex-ml507 board
>    Hi,
>    I have a problem when emulating virtex-ml507.
>    Loop device can not be mounted as hda, no partitions are listed.
>    My environment is as following:
>    1. Qemu 0.14.1 build with libfdt support.
>    2. Kernel download from Xilinx Git server.
>        config is customized from 44x/virtex_defconfig with enable some
>    option to make kernel can automount filesystem:
>        Under device drivers--->block devices:
>        CONFIG_BLK_DEV_LOOP
>        CONFIG_BLK_DEV_RAM
>        CONFIG_BLK_DEV_NBD
>        Under device drivers--->ATA/ATAPI/MFM/RLL support
>        CONFIG_IDE_GD
>        CONFIG_IDE_GD_ATA
>        CONFIG_BLK_DEV_GENERIC
>        CONFIG_BLK_DEV_PIIX
>        Under file systems:
>        CONFIG_AUTOFS_FS
>        CONFIG_AUTOFS4_FS
>        Also the ext2, ext3  file systems are supported
>    3. RFS is busybox
>    Run Qemu:
>    $ qemu-system-ppc -M virtex-ml507 -kernel vmlinux -m 256 -hda
>    rootfs_ppc.ext2 -append "console=ttyS0 root=/dev/hda" -nographic
>    Output:
>    [    0.755969] NET: Registered protocol family 17
>    [    0.760477] hd: no drives specified - use hd=cyl,head,sectors on
>    kernel command line
>    [    0.782726] Root-NFS: no NFS server address
>    [    0.782932] VFS: Unable to mount root fs via NFS, trying floppy.
>    [    0.790541] VFS: Cannot open root device "hda" or unknown-block(2,0)
>    [    0.792438] Please append a correct "root=" boot option; here are
>    the available partitions:
>    [    0.795265] Kernel panic - not syncing: VFS: Unable to mount root fs
>    on unknown-block(2,0)
>    Can you help me for this problem?


Hi,

The emulated board doesn't have harddisks, you'll need to use ramdisks or
the emulated NOR flash.

There is no VGA controller.

Cheers