[CentOS] Convert a real system in a DomU

Sun May 18 22:04:49 UTC 2008
Sergio Belkin <sebelk at gmail.com>

2008/5/16 Luke S Crawford <lsc at prgmr.com>:
> "Sergio Belkin" <sebelk at gmail.com> writes:
>> dd if=/dev/sdaX of=fedora6.img (on FC6)
> of course, you can't do this if you are booting off /dev/sdaX-  boot
> into a rescue disk or something.
>> and then on Centos 5.1
>> dd if=fedora6.img of=/dev/sdaX
>> Could I run this system into Xen?
> assuming you sized things correctly, yes.
> Personally I find it easier to just make .tar.gz files of the entire system.
> A few things you need to do to the fc image before you start.
> you want to install the xen kernel and make an entry for it in PyGrub
> before you move to step 1.   fix the /etc/fstab to match what you call your
> disks in the xm config file.   make sure the initrd you make has
> --preload xenblk
> make sure you run a getty on the console (for CentOS, the console is xvc0
> I assume it is the same for fc)   so add xvc0 to /etc/securetty and run
> a getty on it in /etc/inittab
> after this you can make the image as above.
> your config file needs to be something like this:
> bootloader = "/usr/bin/pygrub"
> memory = 512
> name = "fc_test"
> vif = []
> disk = [
>        'phy:/dev/sdaX,sda,w'
> ]

Thanks Luke, and what should in order to convert real partitions in
virtual disks?

Thanks in advance!
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