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[Christian Parpart <trapni@xxxxxxxxx>]

On Tue, Jun 26, 2012 at 2:30 AM, William Herry <
william.herry.china@xxxxxxxxx> wrote:

> Hi
> I use boot from iso to install a centos instance, it can't recognize the
> disk, I create a flavor with 300G ephemeral and 300G disk, it says no valid
> disk found, but when I create a flavor with 300000 swap, it found the disk
> vdb, and can install the system, but of course can boot

Hey,

maybe your VM disk space is exported as VIRTIO block-device (/dev/vda, ...)
and your ISO image doesn't support these block devices? Try loading its
underlying kernel module :)

Cheers,
Christian.