Virtualisation

Hyper-V

Installation

VM Machine type:

• 1: Use for older ISOs, avoiding "the signed images hash is not allowed (db)"
• 2: Use for UEFI/Secureboot

Convert VMware to Hyper-V with qemu-img:

qemu-img convert -p -f vmdk -O vpc centos_disk.vmdk centos_disk.vhd

Proxmox

Main documentation:

• Proxmox

Installation

• hdsize defines sieze of disk, to reserve space for additional VGs
• minfree defines unallocates space in the VG, required for LVM snapshots (hdsize/8 to a max of 16 GB)
• VG "pre" is created with LVs:
  • root (define with maxroot, limit is hdsize/4)
  • data (maximum defined with maxvz: hdsize - rootsize - swapsize - minfree. Must be at least 4 GB)
  • swap (define with swapsize)
• For HP DL380G5 (and other on VGA?) blank screen during install:
  • Edit "e" -> add "nomodeset" and/or "i915.modeset=0" as Linux kernel option

To enable updates, add:

# Proxmox VE pve-no-subscription repository provided by proxmox.com,
# NOT recommended for production use
deb http://download.proxmox.com/debian/pve bookworm pve-no-subscription

# security updates
deb http://security.debian.org/debian-security bookworm-security main contrib

to the file:

• /etc/apt/sources.list

Then update:

apt dist-upgrade

Windows VirtIO drivers:

• Windows VirtIO drivers

Network configuration:

• /etc/network/interfaces

Time Server:

• /etc/chrony/chrony.conf

Storage

Initial storage:

• local
  • LV: pve/root
  • mounted under /
• local-lvm
  • Thin LV: pve/data

ISO Uploads:

• /var/lib/vz/template/iso/

wipefs -a /dev/sdb /dev/sdc
pvcreate /dev/sd[bc]
pvs
vgcreate main /dev/sd[bc]
vgs
lvcreate -T -l 100%FREE --poolmetadatasize 1G main/vm
lvs -a

VirtualBox

When running on Linux, ensure KVM module is not loaded:

rmmod kvm-intel
rmmod kvm-amd

XCP-NG

Installation

Options for storage:

• ext -> for thin provisioning
• LVM -> for thick provisioning

Update to latest packages:

yum update

Deploy XOA (Xen Orchestra VM) to manage this and other XCP servers in one place.

VMware

ESXi

At install time:

• SHIFT-O
• runweasel allowLegacyCPU=true