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71 lines
2.7 KiB
Markdown
71 lines
2.7 KiB
Markdown
---
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title: Performs a few checks on Phyllome OS
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description:
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published: true
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date: 2021-11-27T11:19:25.159Z
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tags:
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editor: markdown
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dateCreated: 2021-11-13T11:39:13.790Z
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---
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# Check your system
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Before diving further, it is a good idea to check if everything has been set-up correctly.
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## Validate generic features on the host
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> Those commands are valid for each and every Phyllome OS editions
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{.is-info}
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### Perform a global check
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The command-line tool `virt-host-validate` can let you quickly check if hardware virtualization is activated, among other features.
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* Use the following command to check your system:
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```
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virt-host-validate
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```
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* Make sure the result look like this:
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```
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[groot@phyllome ~]$ virt-host-validate
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QEMU: Checking for hardware virtualization : PASS
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QEMU: Checking if device /dev/kvm exists : PASS
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QEMU: Checking if device /dev/kvm is accessible : PASS
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QEMU: Checking if device /dev/vhost-net exists : PASS
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QEMU: Checking if device /dev/net/tun exists : PASS
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QEMU: Checking for cgroup 'cpu' controller support : PASS
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QEMU: Checking for cgroup 'cpuacct' controller support : PASS
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QEMU: Checking for cgroup 'cpuset' controller support : PASS
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QEMU: Checking for cgroup 'memory' controller support : PASS
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QEMU: Checking for cgroup 'devices' controller support : WARN (Enable 'devices' in kernel Kconfig file or mount/enable cgroup controller in your system)
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QEMU: Checking for cgroup 'blkio' controller support : PASS
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QEMU: Checking for device assignment IOMMU support : PASS
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QEMU: Checking if IOMMU is enabled by kernel : PASS
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```
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> The warning message for *cgroup devices* can be disregarded. This is a [not an issue](https://gitlab.com/libvirt/libvirt/-/issues/94). This warning will not show up if the `virt-host-validate` command is executed as *root* or with a user with sudo privileges
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{.is-info}
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### Check for hardware virtualization
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* Another more generic way to check whether *hardware virtualization* is activated or not is the following command:
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```
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cat /proc/cpuinfo | grep svm '(vmx|svm)'
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```
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* Look for `svm` for AMD-based processors, or `vmx` for Intel-based processors.
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```
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[groot@phyllome ~]$ cat /proc/cpuinfo | grep svm '(vmx|svm)'
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flags : fpu vme de [...] svm [...] sme sev sev_es
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```
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### Check if IOMMU groups have been created are present
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## Validate specific features on the host
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> Those commands are valid for only specific Phyllome OS editions
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{.is-info} |