Topic 9

Dates: 4/3/2019
Start-up and Run Levels. Scheduled jobs (at, cron)
Linux System Administration


Exercise: VM setup for startup scripts

  • Clone kvm1 to a new NFS server VM host, run01, by executing the command below: 
    virsh shutdown kvm1
virt-clone --connect=qemu:///system -o kvm1 -n run01 -f /home/hostadm/KVM/run01.img
  • Check if the new VM is in the list, start it, then login to its console: 
    virsh list --all
virsh start run01
virsh console run01
  • Fix the host name.
    replace kvm1 with run01 in /etc/hostname file,
  • Reset the machine ID by running the following commands on kvm3: 
    rm -f /etc/machine-id
rm /var/lib/dbus/machine-id
dbus-uuidgen --ensure=/etc/machine-id
dbus-uuidgen --ensure
  • Clear the DHCP leased IP settings: 
    dhclient -r ens3

    Reboot the VM: 
    reboot
    After reboot, the new VM should come up with the correct host name.

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