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% podman-machine-set 1
## NAME
podman\-machine\-set - Sets a virtual machine setting
## SYNOPSIS
**podman machine set** [*options*] [*name*]
## DESCRIPTION
Change a machine setting.
Rootless only.
## OPTIONS
#### **--cpus**=*number*
Number of CPUs.
Only supported for QEMU machines.
#### **--disk-size**=*number*
Size of the disk for the guest VM in GB.
Can only be increased. Only supported for QEMU machines.
#### **--help**
Print usage statement.
#### **--memory**, **-m**=*number*
Memory (in MB).
Only supported for QEMU machines.
#### **--rootful**
Whether this machine should prefer rootful (`true`) or rootless (`false`)
container execution. This option will also update the current podman
remote connection default if it is currently pointing at the specified
machine name (or `podman-machine-default` if no name is specified).
Unlike [**podman system connection default**](podman-system-connection-default.1.md)
this option will also make the API socket, if available, forward to the rootful/rootless
socket in the VM.
## EXAMPLES
To switch the default VM `podman-machine-default` from rootless to rootful:
```
$ podman machine set --rootful
```
or more explicitly:
```
$ podman machine set --rootful=true
```
To switch the default VM `podman-machine-default` from rootful to rootless:
```
$ podman machine set --rootful=false
```
To switch the VM `myvm` from rootless to rootful:
```
$ podman machine set --rootful myvm
```
## SEE ALSO
**[podman(1)](podman.1.md)**, **[podman-machine(1)](podman-machine.1.md)**
## HISTORY
February 2022, Originally compiled by Jason Greene <jason.greene@redhat.com>
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