Re: How to edit *.qcow2

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在 星期五 05 二月 2010 14:54:57,satimis@xxxxxxxxxxxxxx 写道:
> Hi Liang,
> 
> 
> Thanks for your advice and link.
> 
> Host - Debian 5.0
> KVM
> libvirt
> 
> > run  kvm-nbd  VM/vm30.qcow2, modprobe nbd
> > nbd-client localhost 1024 /dev/nbd0
> >
> > then you can use /dev/nbd0 as a block device like /dev/sda
> >
> > I've write a little essay on how to install Debian on kvm image, FYI:
> >
> > http://blog.chinaunix.net/u/7667/showart_2112267.html
> 
> I can't find kvm-nbd and nbd-client.  I have nbd installed already.
> 
> 
> $ yum list nbd
> Loaded plugins: presto, refresh-packagekit
> Available Packages
> nbd.x86_64            2.9.13-1.fc12           fedora
> 
> 
> $ which kvm-nbd
> /usr/bin/which: no kvm-nbd in
> (/usr/lib64/qt-3.3/bin:/usr/kerberos/sbin:/usr/kerberos/bin:/usr/local/bin:
> /usr/bin:/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/satimis/bin)
> 
> 
> $ which qemu-nbd
> /usr/bin/qemu-nbd
> 
> 
> $ which nbd-client
> /usr/bin/which: no nbd-client in
> (/usr/lib64/qt-3.3/bin:/usr/kerberos/sbin:/usr/kerberos/bin:/usr/local/bin:
> /usr/bin:/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/satimis/bin)
> 
> 
> I suppose qemu-nbd = kvm-nbd ?  Where is nbd-client ?
In debian stable, kvm-nbd command is from pacakge kvm, please see 
http://packages.debian.org/lenny/amd64/kvm/filelist

If you are using Debian SID, you should use qemu-kvm instead of kvm. 

nbd-client command is from package nbd-client, please see:
http://packages.debian.org/lenny/amd64/nbd-client/filelist, It is in /sbin 
directory, so you should use root to run it.

qemu-nbd is from package qemu-utils, I have not use it, but I think it should 
do the same thing as kvm-nbd. 

I don't know fedora exactly, but I think fedora should have relevant package.

Best Wishes. 

-- 
Liang Guo
http://bluestone.cublog.cn
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