Hello, I am far from an expert, and I am trying to build a virtual machine (debian squeeze) on my Arch 64 bits host. The VM will serve as a server with usual services (http, mail, ftp, media server etc). This is only for my own purpose and I do it as a hobby.I have no obligation to success, and more important I want to understand everything i do. I have some doubts, so why my post here. I want to install the VM on a LVM partition. -I first create successfully a LVM partition on /dev/sda4 $fdisk -l /dev/sda ... /dev/sda4 1925115904 2949116309 512000203 8e LVM Linux ... I will install the VM (named "daffodil") on a 200G Logical Volume on groupe vg0 $ lvcreate –n lv_daffodil –L 200G vg0 Logical volume “lv_daffodil” created Now I need to create the VM. I want to use virt-install IN COMMAND LINE. After days an days of reading (and headache), here is what i think is the correct command : virt-install --connect qemu:///system --name=daffodil --ram 8192 --cpu host --disk path=/dev/vg0/lv_daffodil,size=200,bus=virtio,sparse=false,format=raw --cdrom /var/lib/libvirt/images/isofiles/debian-6.0.4-amd64-netinst.iso --description="daffodil (debian squeeze) - vm guest on host magnolia" --graphics vnc --os-type=linux --os-variant=debiansqueeze --network bridge:br0 --video=vga --hvm --accelerate So my questions : Is the command correct and academic? I think size=200 is maybe not needed, as the LV has already be created. Right? format=raw seems weird to me and not needed. Right? My host has 16G RAM. Shall I put 16 as --ram argument or stay with 8 ? How about the filesystem? I want an ext4. Shall I create it on lv_daffodil BEFORE the install or will I do it under the install process when partitioning? Any advantage in creating smaller than 200G logical volume, even if I want my VM have enough space (The whole HD is 2T)? Not sure about the --accelerate argument Any hint for optimization? As a n00b ++, will I be able to manage SELinux on my server, as it seems a litle bit tricky? what about --noautoconsole argument? Thank you for your help and knowledge.