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Proxmox

Proxmox is an environment for virtual machines and containers.

Disk Management

Enlarging disk of a VM

SSH into Proxmox. Enlarge a disk by using:

qm resize <vmid> <vm-disk-to-enlarge> <size>

For example (100G is 100GibiByte):

qm resize 100 ide0 +100G

After that grow the filesystem as described in the disk-management article.

VM passthrough

USB passthrough

On the host system find the usb you're looking to pass through with

lsusb

Then assign it to the vm using

qm set <vm-id> -usb<id-to-set> host=<id-of-the-usb>

for example

qm set 101 -usb0 host=aaaa:8816

PCI/GPU passthrough

To use GPUs or other PCI devices you need to work with PCI passthrough. For documentation you can look in the Proxmox wiki. There is also an article on reddit, that focusses especially on windows 10 VMs with GPU passthrough.

Bugfixing

No internet after mainboard swap

If you change the mainboard of your proxmox-virtual-environment it is possible, that the NIC changes. Find out the new interface name with ip a. After that get all occurences of the interface (eth0 in the example) with rgrep eth0 /etc and change them to the new device with a text editor of your choice. It is possible that there are also files existing that need to be renamed. Find them with find /etc -change '*eth0*' and move them to the new name. After that reboot and the internet should be up again. (sources: debian website and proxmox forum)