hxkhust
2012-Dec-22 13:00 UTC
how to run a qcow format para-virtualized machine with blktap modules used
Hi,guys, first of all,I''m working on xen 4.1 and xen 3.4.I need your help corresponding to these two kinds of xen. As I know ,para-virtualized machines will use blktap for their read/write and full-virtualized machines will use qemu. I have seen that there are block-qcow.c and block-qcow2.c in blktap/drives/, and I would like to use them for my VM''s reading and writing.I plan to create raw-format image as bascking file image and then create qcow format images based on the raw-format one.I know it need to use para-virtualized machines. I have tried like these: I create a para-virtualized machine with config file in which vmlinuz and initrd are needed. when I finish the VM''s os installation, I use bootloader pygrub to take the place of vmlinuz and initrd.Then I create a qcow format image based on the one created just now.but the vm could not been set up normally. so I failed. who could help me to create a para-virtualized machine which take a qcow format image as its virtual disk (and this qcow image is based on a backing file )? I need your help and the deadline is coming,exactly tomorrow is my deadline. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
Wei Liu
2012-Dec-22 14:16 UTC
Re: how to run a qcow format para-virtualized machine with blktap modules used
On Sat, Dec 22, 2012 at 1:00 PM, hxkhust <hxkhust@126.com> wrote:> > who could help me to create a para-virtualized machine which take a qcow > format image as its virtual disk (and this qcow image is based on a backing > file )? > I need your help and the deadline is coming,exactly tomorrow is my > deadline. > >IIRC the toolstack will fall back to use QEMU if there is no blktap module in the Dom0 kernel. Wei. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
hxkhust
2012-Dec-22 15:49 UTC
Re: how to run a qcow format para-virtualized machine with blktap modules used
qemu puzzled me .what I want to do is to use blktap modules.I need my qcow format VM running with blktap offering support. 在 2012-12-22 22:16:41,"Wei Liu" <liuw@liuw.name> 写道: On Sat, Dec 22, 2012 at 1:00 PM, hxkhust <hxkhust@126.com> wrote: who could help me to create a para-virtualized machine which take a qcow format image as its virtual disk (and this qcow image is based on a backing file )? I need your help and the deadline is coming,exactly tomorrow is my deadline. IIRC the toolstack will fall back to use QEMU if there is no blktap module in the Dom0 kernel. Wei. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel