> dd if=/dev/virtualmachines/windows7-x64 of=mbr.w7-x64 bs=512 count=1 I think if you do this, you are only backing up the first 512 bytes of the logical volume, not the MBR.
Someone correct me if I am wrong. -- Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics) BEng(Hons)(Mechanical Engineering) Alma Maters: (1) Singapore Polytechnic (2) National University of Singapore My Primary Blog: http://teo-en-ming-aka-zhang-enming.blogspot.com My Secondary Blog: http://enmingteo.wordpress.com My Youtube videos: http://www.youtube.com/user/enmingteo Email: [email protected] Mobile Phone (Starhub Prepaid): +65-8369-2618 Street: Bedok Reservoir Road Country: Singapore On Thu, Nov 12, 2009 at 9:36 AM, Geert Janssens <[email protected]> wrote: > On Thursday 12 November 2009, Mr. Teo En Ming (Zhang Enming) wrote: > > Hi All, > > > > I have several Xen virtual machines within logical volumes using LVM2. I > > did not use disk images for performance reasons. > > > > Conventionally, if I want to clone my virtual machines, I have to dd the > LV > > to an image file. But this consumes a lot of time and harddisk space. > > > > So, instead of doing that, I want to use losetup and kpartx with my > logical > > volumes, which contain operating systems of virtual machines. > > > > I can backup the filesystems of a virtual machine in this way: > > > > # losetup /dev/loop1 /dev/virtualmachines/windows7-x64 > > > Are you sure you need to call losetup first ? > > I remember I used kpartx directly on the lvm containing my vbd. > > Also, I think you can treat the lvm based vbd as a real disk. > > So > dd if=/dev/virtualmachines/windows7-x64 of=mbr.w7-x64 bs=512 count=1 > > should backup your mbr. > > Anyone correct me if I'm wrong please. > > Geert > > -- > Kobalt W.I.T. > Web & Information Technology > Brusselsesteenweg 152 > 1850 Grimbergen > > Tel : +32 479 339 655 > Email: [email protected] > > > _______________________________________________ > Xen-users mailing list > [email protected] > http://lists.xensource.com/xen-users >
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