Re: [Xen-users] xen 4.4+ cannot attach vhd disk at boot time with qemu-xen-traditional

["kevin.zhang@xxxxxxxxxxx" <kevin.zhang@xxxxxxxxxxx>]

Hi all,

    

    I think it may be a bug because, the log said:

        Using xvda for guest's hda 

        Strip off blktap sub-type prefix to /srv/local/2.vhd (drv 'vhd') 

        qemu: type (image format) 'vhd' unknown for vbd '/local/domain/0/backend/qdisk/103/51712/type' or image '/srv/local/2.vhd'

   I tested using xl block-attach can successfully attach a vhd disk to domU with qemu-dm, therefore, the driver for vhd is valid in my system.

I noticed that the qemu hard disk did not appear in the BIOS screen.

    I'm using debian wheezy 7.5 amd64, and xen 4.4+.

   Is there anyone that can also repeat this problem? All of my test servers has this problem.

---

 

From: kevin.zhang@xxxxxxxxxxx

Date: 2014-07-21 09:56

To: xen-users

Subject: xen 4.4 cannot attach vhd disk at boot time with qemu-xen-traditional

Hi all,            

Today  I am testing xen 4.5 unstable, and want to make some comparison between qemu-xen and qemu-xen-traditional.

I firstly create hvm domU with qemu-xen and try to use the similar config file to boot with qemu-xen-traditional.  

It's quite strange thatqemu-xen-traditional cannot attach disk image at boot time, including raw and vhd.      

Does anyone have the same experience? Or is there any solution to fix it?      

My config to boot hvm domU with qemu-xen-traditional is :

name='centos

'builder="hvm"

memory=4096

vcpus=4

vif=['bridge=br0']

disk=['tap2:vhd:/srv/local/2.vhd,xvda,rw','tap2:aio:/srv/local/CentOS-6.4-x86_64-LiveCD.iso,hdb,ro,cdrom']

boot='c'

device_model_version="qemu-xen-traditional"

viridian=1

vnc=1

vnclisten="0.0.0.0"

localtime=1

usbdevice=["tablet"]

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