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Gentoo Xen
Kernel configuration for Xen domain0:
Processor type and features ---> [*] Linux guest support ---> [*] Enable paravirtualization code [*] Xen guest support [*] Support for running as a PVH guest [*] Paravirtualization layer for spinlocks Power management and ACPI options ---> [*] ACPI (Advanced Configuration and Power Interface) Support ---> Bus options (PCI etc.) ---> <*> Xen PCI Frontend [*] Networking support ---> Networking options ---> <*> 802.1d Ethernet Bridging [*] Network packet filtering framework (Netfilter) ---> [*] Advanced netfilter configuration [*] Bridged IP/ARP packets filtering Device Drivers ---> Character devices ---> [*] Xen Hypervisor Console support [*] Xen Hypervisor Multiple Consoles support [*] Block devices ---> <*> Xen virtual block device support <*> Xen block-device backend driver Input device support ---> [*] Miscellaneous devices ---> <*> Xen virtual keyboard and mouse support [*] Network device support ---> <*> Xen network device frontend driver <*> Xen backend network device Graphics support ---> Frame buffer Devices ---> <*> Xen virtual frame buffer support Xen driver support ---> [*] Xen memory balloon driver [*] Scrub pages before returning them to system <*> Xen /dev/xen/evtchn device [*] Backend driver support <*> Xen filesystem [*] Create compatibility mount point /proc/xen [*] Create xen entries under /sys/hypervisor <*> userspace grant access device driver <*> User-space grant reference allocator driver <*> Xen PCI-device backend driver <*> Xen ACPI processor [*] Xen platform mcelog [*] Xen symbols
You can install pygrub
with the USE flag on the xen-tools package, which is a python wrapper to the old GRUB installs. Alternatively, you can use the newer pvgrub
instead.
emerge xen-pvgrub xen-tools xen
Once you've emerged the packages, there will be a xen.gz
kernel located in /boot
. You'll need to update your bootloader to use that as the kernel. Your original kernel is passed in as a module.
A sample GRUB legacy configuration:
title Xen Gentoo Linux 4.1.12 root (hd0,0) kernel /boot/xen.gz module /boot/vmlinuz-4.1.12-gentoo root=/dev/sda3
Update the Xen services to start on boot:
rc-update add xencommons default rc-update add xenconsoled default rc-update add xenstored default
If you want Xen domains to start on boot, put the configuration files in /etc/xen/auto
, and add xendomains
to the startup sequence:
ln -s /etc/xen/configs/openbsd-5.9_amd64 /etc/xen/configs/auto/
rc-update add xendomains default
Update /etc/inittab
:
c0:2345:respawn:/sbin/agetty 38400 hvc0 linux
Reload your new inittab:
telinit q