On 10/27/07, Jerry Geis geisj@pagestation.com wrote:
All,
I am playing with virtualization on centos 5. I took my old redhat 7 disks and created a 10GIG virtual disk, I installed redhat 7. Now I am trying to get the EXACT image copied off of my actual redhat 7 disk so that I know it is the same (including all patches, updates and OTHER things I did to it that I have forgotten about).
I booted the redhat 7 image just fine at this point. I also copied it for backup so I dont have to install again.
So on my centos 5 box I mounted the image with a loop command. mount -t ext3 -o loop,offset=32256 redhat7.img /mnt/image This works fine.
Then I logged into the redhat 7 system and executed the command tar --exclude ./proc --exclude ./mnt --exclude ./sys --exclude ./dev -cvf - . | ssh root@192.168.1.8 "( cd /mnt/image ; tar xvpf -)"
You should use -v only in the second tar, if not every file is logged twice, just a trick.
Where 192.168.1.8 is my centos 5 box and /mnt/image the mounted image.
The copy seems to go fine. But after I do this when I try to virtualize the redhat7 image it stops at: GRUB
If I had to do the same thing myself, trying to make it simple and maximize my chances of success. I would have first installed a minimal RH7 on the disk image, then made a backup of /boot and /boot/grub/grub.conf. Also on my original rh7 I would have installed a xen kernel using : rpm -ivh kernel-xen?????.rpm. (the same as the one running on my xen system) Then copied all the files, like you did (using tar and ssh).
Then restoring /boot/grub/grub.conf and kernel related /boot/initrd?????
Et voila :-)
Anyway the hardest part is to have grub correctly installed and a well configured initrd pre-boot image.
Regards.
When I copy the second image back on top of the first image it then boots again. So glad I made that copy of the image file.
What is happening with the tar command that is messing up grub and keeping it from booting?
Thanks,
Jerry _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos