mirror of
https://github.com/Ponce/slackbuilds
synced 2024-11-22 19:44:21 +01:00
84 lines
3.7 KiB
Text
84 lines
3.7 KiB
Text
kernel-xen.sh: Xen dom0 kernel using rebased OpenSUSE xen-patches.
|
|
|
|
This script patches and builds the Linux Kernel for the Xen Hypervisor.
|
|
|
|
To run this scipt you will need the Xen kernel patches in this directory.
|
|
The patches may be downloaded from:
|
|
http://gentoo-xen-kernel.googlecode.com/files/xen-patches-2.6.34-4.tar.bz2
|
|
(md5sum: 25ba07cf0702130af26c045fd6227f2f)
|
|
|
|
Note on kernel: You will need to get kernel version 2.6.34.4 because patches
|
|
based on Slackware stock kernel tree (2.6.33.4) do not work as expected.
|
|
Anyway, you can get it from:
|
|
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.33.4.tar.bz2
|
|
(md5sum: f75d21e5c60f18adf0e99d61c243f964)
|
|
|
|
The included configuration files are based on Slackware's kernel. For
|
|
Slackware32, the SMP kernels were used as the non-smp kernels would not compile
|
|
with the Xen patches. For the Xen-specific parameters, the default options were
|
|
used as much as possible. You may run "make menuconfig" before compiling the
|
|
Xen kernel by passing the "MENUCONFIG=yes" to the scipt.
|
|
|
|
Another variable worth mentioning here is "BOOTLOADER=", you can use it to
|
|
select how kernel is packed. Valid options are "lilo" and "grub".
|
|
|
|
By default, the huge kernel is chosen, but you may opt for the generic kernel
|
|
by passing the "KERNEL=generic" variable to the script. In this case, you
|
|
will need to make an ad-hoc initrd after installing this package.
|
|
For example:
|
|
|
|
depmod 2.6.34.4-xen
|
|
mkinitrd -c -k 2.6.34.4-xen -f ext4 -r /dev/sda1 -m ext4 -o /boot/initrd-xen.gz
|
|
|
|
For details on initrd, read /boot/README.initrd, run
|
|
/usr/share/mkinitrd/mkinitrd_command_generator.sh for hints and read the Xen
|
|
User Manual and the README file that comes with the Xen package.
|
|
|
|
Since booting Xen kernel with LILO is not supported by default we have to
|
|
either use GRUB, or mbootpack to create a LILO compatible kernel.
|
|
|
|
This is an example how to do it with LILO, mbootpack and initrd:
|
|
|
|
cd /boot
|
|
gzip -d -c /boot/xen-4.0.1.gz > /boot/xen-4.0.1
|
|
gzip -d -c /boot/initrd-xen.gz > /boot/initrd-xen
|
|
mbootpack -o /boot/vmlinuz-2.6.34.4-xen -m /usr/src/linux-2.6.34.4-xen/vmlinux \
|
|
-m /boot/initrd-xen /boot/xen-4.0.1
|
|
|
|
After new kernel image is created, add something like the folowing to lilo.conf:
|
|
|
|
image = /boot/vmlinuz-xen
|
|
root = /dev/sda1
|
|
label = XenLinux
|
|
append="dom0_mem=256M -- nomodeset"
|
|
read-only
|
|
|
|
Note: everything before "--" is passed to Xen, and everything after "--" is
|
|
passed to the Linux kernel.
|
|
|
|
If for some reason LILO is not good enough, you can always use GRUB.
|
|
GRUB may be installed from Slackware's extra repository. The GRUB package
|
|
is not available from the Slackware x86_64 distribution, but the source
|
|
and a SlackBuild may be found in its extra/source repository.
|
|
|
|
grubconfig that comes with Slackware's GRUB package may give a starting point
|
|
to configure GRUB. Moreover, the Xen User Manual and its README file installed
|
|
with the Xen package include details on which parameters to include in the GRUB
|
|
configuration file. For example, include these lines in /boot/grub/menu.lst:
|
|
|
|
title Slackware XenLinux 13.1
|
|
root (hd0,0)
|
|
kernel /boot/xen.gz dom0_mem=262144 console=vga
|
|
module /boot/vmlinuz-xen root=/dev/sda1 ro console=tty0 nomodeset
|
|
module /boot/initrd-xen.gz
|
|
|
|
Notes on bootloader:
|
|
A dom0_mem parameter is critical for Slackware32.
|
|
You only need the initrd module if you install the generic kernel.
|
|
|
|
Aditional notes on framebuffer:
|
|
If your dom0 kernel gets stuck on boot with a blinking cursor on the screen,
|
|
and you have an old VGA card, don't panic, there is a way arround it!
|
|
Easiest method is to boot from non-xen kernel, and blacklist a framebuffer
|
|
module from ever loading. Another option would be to replace VGA card with
|
|
a newer one, or remove module in the next kernel build.
|