I am starting an instance passing xml configuration like this. Contents inside my kickstart file is this *apt-get install vim --assume-yes* . But I think kickstart is not considered while booting instance though I am able to start instance. Please help. Thanks in advance "<domain type='xen'>" + " <name>testVM-server</name>" +" <description></description>" +" <memory>524288</memory>" +" <currentMemory>524288</currentMemory>" +" <vcpu>1</vcpu>" + " <os>" * + " <type>hvm</type**>" + " <kernel>/home/x**entest/Desktop/**vmlinuz</kernel**>" + " <initrd>/home/x**entest/Desktop/**initrd</initrd>**" + " <loader>/usr/li**b/xen-4.1/boot/**hvmloader</load** er>" + " <boot dev='hd'/>" + " <cmdline>ks=http://10.30.6.3/testVM-server.cfg </cmdline>" + " </os>"* + " <on_poweroff>destroy</on_poweroff>" + " <on_reboot>destroy</on_reboot>" + " <on_crash>destroy</on_crash>" + " <devices>" + " <emulator>/usr/lib64/xen/bin/qemu-dm</emulator>" + " <disk type='file' device='disk'>" + " <driver name='tap' type='aio'/>" + " <source file='/home/xentest/Desktop/ubuntu-server.img'/>" + " <target dev='xvda'/>" + " </disk>" + " <interface type='bridge'>" + " <source bridge='br0'/>" + " <script path='/etc/xen/scripts/vif-bridge'/>" + " </interface>" + " <serial type='pty'>" + " <target port='0'/>" + " </serial>" + " <console type='pty'>" + " <target type='serial' port='0'/>" + " </console>" + " <input type='mouse' bus='ps2'/>" + " <graphics type='vnc' port='5900' autoport='yes' keymap='en-us'/>" + " <sound model='es1370'/>" + " </devices>" + "</domain>"; -- Thank You Sarath P R | cell +91.999.502.4287