cross-posted from: https://lemmy.world/post/31711492
cross-posted from: https://lemmy.world/post/31710629
I'm trying to boot some VMs using a script w/ a kickstart file. I'm using the following script that I found online and modified:
#!/usr/bin/env bash #set -x ## Define variables MEM_SIZE="8192" # Memory setting in MiB VCPUS="2" # CPU Cores count #OS_VARIANT="rocky9" # List with osinfo-query os OS_VARIANT="rhel7.9" # List with osinfo-query os ISO_FILE="~/Documents/software/os/RHEL-7.9-20200917.0-Server-x86_64-dvd1.iso" # Path to ISO file case $OS_VARIANT in rhel7.9) KS=ks7.cfg;; rocky9) KS=ks9.cfg;; esac echo -en "Enter vm name: " read VM_NAME OS_TYPE="linux" echo -en "Enter virtual disk size : " read DISK_SIZE DISK=~/.local/share/libvirt/images/${VM_NAME}.qcow2 echo "Creating disk" sudo virt-install \ --name ${VM_NAME} \ --memory=${MEM_SIZE} \ --vcpus=${VCPUS} \ --location ${ISO_FILE} \ --network network=default \ --disk path=${DISK},size=${DISK_SIZE} \ --graphics=none \ --os-variant=${OS_VARIANT} \ --console pty,target_type=serial \ --initrd-inject ~/virt/${KS} --extra-args "inst.ks=file:/${KS} console=tty0 console=ttyS0,115200n8"I've obfuscated the directory paths, but they're all full paths and the script will build a VM. So basically just setting up a basic system, using the default network. Here's the config for that:
<network connections='3'> <name>default</name> <uuid>61afc7f1-9c5e-4cra-8d18-e3cf4f9358e9</uuid> <forward mode='nat'> <nat> <port start='1024' end='65535'/> </nat> </forward> <bridge name='virbr0' stp='on' delay='0'/> <mac address='52:54:00:7c:32:9b'/> <ip address='192.168.122.1' netmask='255.255.255.0'> <dhcp> <range start='192.168.122.2' end='192.168.122.254'/> </dhcp> </ip> </network>Looking at the XML for the VM, I see the following for the network:
<interface type='network'> <mac address='52:54:00:07:82:78'/> <source network='default' portid='800dfd67-d90a-42te-a0b7-c4c78cdae481' bridge='virbr0'/> <target dev='vnet7'/> <model type='virtio'/> <alias name='net0'/> <address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/> </interface>When this VM is installing, and when it's booted, it does not have an IP. Meanwhile, if I go through virt-manager and select the default network, it gets an IP just fine. I've tried running the virt-install command w/ and w/o sudo (I run virt-manager as me - I'm in the libvirt group). Looking at the virt-manager built VM:
<interface type='network'> <mac address='52:54:00:5e:f5:05'/> <source network='default' portid='d57dbc56-759e-40f9-856f-9623f4801a93' bridge='virbr0'/> <target dev='vnet8'/> <model type='virtio'/> <alias name='net0'/> <address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/> </interface>Looking at virbr0:
$ ip link show master virbr0 11: vnet7: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master virbr0 state UNKNOWN mode DEFAULT group default qlen 1000 link/ether fe:54:00:07:82:78 brd ff:ff:ff:ff:ff:ff 12: vnet8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master virbr0 state UNKNOWN mode DEFAULT group default qlen 1000 link/ether fe:54:00:5e:f5:05 brd ff:ff:ff:ff:ff:ffOnly difference I can see is one is created using virt-manager and the other using virt-install (which calls to virt-install, no?). I thought there was a way to see the actual virt-install command virt-manager was about to use when creating a VM, but I can't find it. Also can't find any logs to give me an idea why the VM isn't getting an IP. Running ethtool on the VM interface shows a link. I've wasted too much time getting this to work, and all the documentation suggests it should "just work!"
I’m sure more than a few of them have that in their history, along with numerous times starting a sentence with, “I’m not racist but…”