SYS: Start and stop virtual machines.

Share this link

Note: This is an RHCSA 7 exam objective.

Presentation

When talking about virtual machines, it is mainly question of KVM management through the virsh and virt-* commands.

VM Management

To start a virtual machine (here vm.example.com), type:

# virsh start vm.example.com

To stop a virtual machine (here vm.example.com), type:

# virsh shutdown vm.example.com

To stop immediately a virtual machine (here vm.example.com), type:

# virsh destroy vm.example.com

To delete a virtual machine (here vm.example.com), type:

# virsh undefine vm.example.com

To reboot a virtual machine (here vm.example.com), type:

# virsh reboot vm.example.com

To display configuration information (memory, state, autostart, etc) about a virtual machine (here vm.example.com), type:

# virsh dominfo vm.example.com

VM Reporting

To get the list of all the virtual machines (active and inactive), type:

# virsh list --all

Note: Remove the –all option to only get the list of the active virtual machines.

To get a global picture of the VM activities, type:

# virt-top
1 Star2 Stars3 Stars4 Stars5 Stars (1 votes, average: 5.00 out of 5)
Loading...
4 comments on “SYS: Start and stop virtual machines.
  1. smstong says:

    good cheat sheet

  2. wbrunc says:

    I’ve read that an unbootable VM is a failure on the exam. Is there any way to backup our VM during the exam so we don’t have to start over ?
    Thanks,
    wbrunc

Leave a Reply

Upcoming Events (Local Time)

There are no events.

RHCSA7: Task of the day

Allowed time: 5 minutes.
Create two users "tom" and "engine". "tom" has the UID/GID 3000 and "engine" the UID/GID 4000. "engine" doesn't have an interactive shell.

RHCE7: Task of the day

Allowed time: 5 minutes.
Set up time synchronization with default configuration.

Follow me on Twitter

Poll for favorite RHEL 7 book

What is your favorite RHEL 7 book to prepare RHCSA & RHCE exams?

View Results

Loading ... Loading ...

Poll for most difficult RHCSA 7 topic

What do you think is the most difficult RHCSA 7 topic?

View Results

Loading ... Loading ...

Poll for most difficult RHCE 7 topic

What do you think is the most difficult RHCE 7 topic?

View Results

Loading ... Loading ...