fix initial commit

kvm/get-kvm-link-local

@@ -0,0 +1,22 @@
+#!/bin/bash
+
+if [[ $# -ne 1 ]]; then
+  echo "USAGE: $0 <domain>"
+  exit 0
+else
+  domain="$1"
+fi
+
+if [[ ! -e /etc/libvirt/qemu/${domain}.xml ]]; then
+  echo "Error: ${domain} configuration not found on this system"
+  exit 1
+fi
+
+macAddress=$(sudo grep -o -E '([[:xdigit:]]{1,2}:){5}[[:xdigit:]]{1,2}' /etc/libvirt/qemu/${domain}.xml)
+# courtesy of https://stackoverflow.com/a/48378567
+printf "%02x%s" $(( 16#${macAddress:0:2} ^ 2#00000010 )) "${macAddress:2}" \
+ | sed -E -e 's/([0-9a-zA-Z]{2})*/0x\0|/g' \
+ | tr -d ':\n' \
+ | xargs -d '|' \
+ printf "fe80::%02x%02x:%02xff:fe%02x:%02x%02x\n"
+

kvm/kvm-setup

@@ -0,0 +1,55 @@
+#!/bin/bash
+
+# Some notes:
+#
+# Prior to running this script it is recommended to update the osinfo-db:
+#   git clone https://gitlab.com/libosinfo/osinfo-db.git
+#   apt install gettext osinfo-db-tools libosinfo-bin
+#   cd osinfo-db
+#   make && make install
+#   osinfo-query os
+#
+# Some ISO images are not in the osinfo-db and therefore require initrd= and kernel= arguments provided to --location, for example:
+#   --location $isoImage,initrd=install.amd/initrd.gz,kernel=install.amd/vmlinuz
+#
+# To find them in the ISO image use:
+#   isoinfo -J -i <ISO image> -l | grep -e '(initrd|vmlinuz)'
+# and:
+#   isoinfo -J -i <ISO image> -l | less
+# to find what directory they are in.  `isoinfo` is provided by the `genisoimage` package.
+#
+# The --boot line below selects UEFI non-secure-boot and requires `ovmf` to be installed
+#
+# The --extra-args allows console access to the installation
+#
+# This script assumes you have a bridge named 'br0'.  Otherwise you might want to use:
+#   --network network:default
+
+
+machineName="rock9-base"
+isoImage="/mnt/e/Downloads/ISO/Rocky-9.4-x86_64-dvd.iso"
+machineMemory=2  # in GB
+diskSize=20
+cpuNumber=2
+# run `osinfo-query os` to get the name of the OS variant
+osVariant="rocky9"
+
+#--location $isoImage,initrd=install.amd/initrd.gz,kernel=install.amd/vmlinuz \
+
+virt-install \
+--connect qemu:///system \
+--virt-type kvm \
+--name "$machineName" \
+--hvm \
+--memory $(( $machineMemory * 1024 )) \
+--boot loader=/usr/share/OVMF/OVMF_CODE.fd,loader.readonly=yes,loader.type=pflash,nvram.template=/usr/share/OVMF/OVMF_VARS.fd,loader_secure=no \
+--disk size="$diskSize",bus=virtio,format=qcow2 \
+--location $isoImage \
+--vcpus $cpuNumber \
+--cpu host \
+--osinfo detect=on \
+--os-variant "$osVariant" \
+--network bridge=br1 \
+--graphics none \
+--console pty,target_type=serial \
+--extra-args 'console=ttyS0,115200n8 --- console=ttyS0,115200n8'

kvm/kvm-setup-from-img

@@ -0,0 +1,51 @@
+#!/bin/bash
+
+# Some notes:
+#
+# Prior to running this script it is recommended to update the osinfo-db:
+#   git clone https://gitlab.com/libosinfo/osinfo-db.git
+#   apt install gettext osinfo-db-tools libosinfo-bin
+#   cd osinfo-db
+#   make && make install
+#   osinfo-query os
+#
+# Some ISO images are not in the osinfo-db and therefore require initrd= and kernel= arguments provided to --location, for example:
+#   --location $isoImage,initrd=install.amd/initrd.gz,kernel=install.amd/vmlinuz
+#
+# To find them in the ISO image use:
+#   isoinfo -J -i <ISO image> -l | grep -e '(initrd|vmlinuz)'
+# and:
+#   isoinfo -J -i <ISO image> -l | less
+# to find what directory they are in.  `isoinfo` is provided by the `genisoimage` package.
+#
+# The --boot line below selects UEFI non-secure-boot and requires `ovmf` to be installed
+#
+# The --extra-args allows console access to the installation
+#
+# This script assumes you have a bridge named 'br0'.  Otherwise you might want to use:
+#   --network network:default
+
+
+machineName="deb12-gencld"
+diskImage="/mnt/e-lin/Downloads/ISO/debian-12-genericcloud-amd64.qcow2"
+machineMemory=2  # in GB
+cpuNumber=2
+# run `osinfo-query os` to get the name of the OS variant
+osVariant="debian12"
+
+virt-install \
+--connect qemu:///system \
+--virt-type kvm \
+--name "$machineName" \
+--hvm \
+--memory $(( $machineMemory * 1024 )) \
+--boot loader=/usr/share/OVMF/OVMF_CODE.fd,loader.readonly=yes,loader.type=pflash,nvram.template=/usr/share/OVMF/OVMF_VARS.fd,loader_secure=no \
+--disk ${diskImage},bus=virtio,format=qcow2 \
+--import \
+--vcpus $cpuNumber \
+--cpu host \
+--os-variant "$osVariant" \
+--network bridge=br1 \
+--graphics none \
+--console pty,target_type=serial \
+#--extra-args 'console=ttyS0,115200n8 --- console=ttyS0,115200n8'

kvm/vclone

@@ -0,0 +1,32 @@
+#!/bin/bash
+
+if [[ $# -ne 2 ]]; then
+  echo "USAGE: $0 <source> <dest>"
+  exit 0
+else
+    orig="$1"
+    dest="$2"
+fi
+
+sudo virt-clone --original "${orig}" --name "${dest}" --auto-clone
+
+sudo virt-sysprep \
+  -d "${dest}" \
+  --operations defaults,-ssh-userdir \
+  --hostname "${dest}" \
+  --edit /etc/hosts:"s/${orig}/${dest}/" \
+  --edit /etc/hostname:"s/${orig}/${dest}/" \
+  --edit /etc/motd:"s/${orig}/${dest}/" \
+  --firstboot-command 'dpkg-reconfigure openssh-server' \
+  --firstboot-command 'systemctl restart sshd'
+
+getLinkLocalAddress() {
+  local macAddress=$(sudo grep -o -E '([[:xdigit:]]{1,2}:){5}[[:xdigit:]]{1,2}' /etc/libvirt/qemu/${dest}.xml)
+  printf "%02x%s" $(( 16#${macAddress:0:2} ^ 2#00000010 )) "${macAddress:2}" \
+    | sed -E -e 's/([0-9a-zA-Z]{2})*/0x\0|/g' \
+    | tr -d ':\n' \
+    | xargs -d '|' \
+    printf "fe80::%02x%02x:%02xff:fe%02x:%02x%02x"
+}
+
+printf "The link-local IP address of %s is:\n  %s\n" "${dest}" "$(getLinkLocalAddress)"