Xen - problem on cloing guest

[satimis]

Hi folks,


Host - Debian Etch


Encountered problem on cloing guest.

Remark: No partition on HD nor have LVM


Steps performed as follows;


# find / -name *.img
/initrd.img
/vserver/domains/xen1.satimis.com/swap.img
/vserver/domains/xen1.satimis.com/disk.img
/vserver/domains/xen2.satimis.com/swap.img
/vserver/domains/xen2.satimis.com/disk.img



# mount -o loop /vserver/domains/xen2.satimis.com/disk.img /mnt
No complaint


# xen-create-image --copy=/mnt --hostname=xen3.satimis.com --ip=192.168.0.113 --dist=etch

General Infomation
--------------------
Hostname : xen3.satimis.com
Distribution : etch
Fileystem Type : ext3

Size Information
----------------
Image size : 4Gb
Swap size : 128Mb
Image type : sparse
Memory size : 128Mb
Kernel path : /boot/vmlinuz-2.6.18-xen

Networking Information
----------------------
IP Address 1 : 192.168.0.113
Netmask : 255.255.255.0
Gateway : 192.168.0.1

Error: No recognised installation type.

Logfile produced at:
/var/log/xen-tools/xen3.satimis.com.log



# tail /var/log/xen-tools/xen3.satimis.com.log
Image type : sparse
Memory size : 128Mb
Kernel path : /boot/vmlinuz-2.6.18-xen

Networking Information
----------------------
IP Address 1 : 192.168.0.113
Netmask : 255.255.255.0
Gateway : 192.168.0.1
Error: No recognised installation type.



What does it mean "Error: No recognised installation type"?


Please advise how to fix the problem. TIA


B.R.
satimis

[satimis]

Hi folks,


I found the solution which is extremely easy. To clone image we use dd command NOT "cp".


The complete steps are as follows;


On Host

To duplicate xen2.example.com

# mkdir /vserver/domain/xen3.example.com

# dd if=/vserver/domains/xen2.example.com/disk.img of=/vserver/domains/xen3.example.com/disk.img bs=4k
524288+0 records in
524288+0 records out
2147483648 bytes (2.1 GB) copied, 70.7044 seconds, 30.4 MB/s



# dd if=/vserver/domains/xen2.example.com/swap.img of=/vserver/domains/xen3.example.com/swap.img bs=4k
65536+0 records in
65536+0 records out
268435456 bytes (268 MB) copied, 4.33293 seconds, 62.0 MB/s



# cp -p /etc/xen/xen2.example.com.cfg /etc/xen/xen3.example.com.cfg

edit the newly created file "xen3.example.com.cfg"

make following changes;

old:
disk = [ 'file:/vserver/domains/xen2.example.com/disk.img,hda1,w', 'file:/vserver/domains/xen2.example.com/swap.img,hda2,w' ]

name = 'xen2.example.com'

vif = [ 'ip=192.168.0.112' ]


as
new:
disk = [ 'file:/vserver/domains/xen3.example.com/disk.img,hda1,w', 'file:/vserver/domains/xen3.example.com/swap.img,hda2,w' ]

name = 'xen3.example.com'

vif = [ 'ip=192.168.0.113' ]



leaving other data intact.


Start the new Guest VM;

# xm create /etc/xen/xen3.example.com.cfg

# xm console xen3.example.com


Edit following files

/etc/hosts
/etc/hostname
/etc/network/interfaces
etc.

making appropriate changes.


That is ALL. Now it is EASY to clone 100 Guest VMs running 100 servers on the same PC.


ENJOY


satimis