Running Linux guests using Qemu 5.0+ on a Windows host, using the WHPX accelerator, may fail to start and freezes on this line: [ … ] Freeing unused kernel image memory: … These guests work fine using Qemu 4 on the same Windows host, configured to use a SkyLake CPU type. The issue can be … Continue reading Qemu 5 on Windows Host With WHPX
Here is a section of the config file for isc-dhcp-server, showing the syntax to cater for a variety of PXE client types
Configure DHCP ServerConfiguration below is for isc-dhcp-server on Linux: # For hardware LAN Boot ROMs:option tftp-server-address 192.168.1.200;filename “pxelinux.0”;# For HyperV Guests:# option 60 = client identifieroption dhcp-client-identifier “PXEClient”;# option 66 = TFTP server nameoption tftp-server-name “192.168.1.200”;# option 67 = Bootfile nameoption bootfile-name “pxelinux.0”; 2. Configure TFTP ServerOn Linux, tftp-hpa is recommended, with a directory structure … Continue reading PXE Booting Guide
If trying to bridge physical networks using a firewall distro (e.g. Zeroshell, pfSense, etc.) on a VMware ESX host, the “Promiscuous” property on the virtual switch must be set to “Accept”. It appears that when “Promiscuous” mode is not enabled VMware ESX only accepts packets destined to MAC’s on the VMware guest NIC’s. When a … Continue reading VMware ESXi with software bridges
A rough guide to using phpvirtualbox on Debian Wheezy: Install VirtualBox: apt-get install virtualbox Create user vbox, member of group vboxusers: adduser vbox vboxusers If using the VirtualBox GUI change the VirtualBox menu item to run as vbox:(suggest installing lxmenu) VirtualBox vbox In VirtualBox GUI change the location for VM’s: File -> Preferences -> General -> Default … Continue reading VirtualBox with phpvirtualbox on Debian Wheezy
Add a “Virtual WIDTH HEIGHT” line after the appropriate DEPTH line in /etc/X11/xorg.conf
(Ref: Elvis, http://forums.overclockers.com.au/showthread.php?t=933797) These instructions can be used to copy full disk images over a network, including from or to physical and/or virtual machines. Because it is a bit-by-bit copy of the disk the process is independent of the file system or partition type, but there must be sufficient space on the destination disk. Individual partitions … Continue reading Copy disk images for Vmware, KVM, etc.