install_msg() { cat << __EOF__ ===> IMPORTANT NOTICES: In order to complete the installation, and enable Xen, at the very least you must: 1. Edit your GRUB2 config files as specified at https://wiki.parabolagnulinux.org/index.php/Xen#Bootloader_Configuration 2. Issue the following commands to allow you to create and start VMs: systemctl enable xenstored.service systemctl enable xenconsoled.service 3. If you want some domains to automatically start up/shutdown, run the following: systemctl enable xendomains.service 4. xen 4.4 no longer includes the xend daemon or the xm binary For more information refer to the Wiki: https://wiki.parabolagnulinux.org/index.php/Xen __EOF__ } upgrade_msg() { cat << __EOF__ Note: If you are upgrading from one of the previous 4.2 xen builds, and are having issues with graphics card passthrough, the default device model used has changed and the newer model can sometimes have issues. To resolve, add (or change ) the following line into your domain config file: device_model_version = "qemu-xen-traditional" Also remember to rebuild your grub configuration if upgrading from a non-xen 4.4.1 install. xen 4.4 no longer includes the xend daemon or the xm toolset by default, however this build does enable it. This install is now using a new version of the 09_xen file, used when generating a new grub.cfg file. The new version inherits the default linux-libre kernel command line settings; to use the old method, uncomment the 'XEN_LINUX_CMDLINE_OVERRIDE' option in /etc/xen/grub.conf and change the '0' to '1' __EOF__ } post_install() { install_msg upgrade_msg } post_upgrade() { upgrade_msg } pre_remove() { systemctl stop xendomains.service systemctl stop xenconsoled.service systemctl stop xenstored.service systemctl disable xendomains.service systemctl disable xenconsoled.service systemctl disable xenstored.service } post_remove() { cat << __EOF__ ===> IMPORTANT NOTICE: In order to finish removing Xen, you will need to modify your bootloader configuration files to load your Linux-libre kernel instead of Xen kernel. __EOF__ }