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kernel-xen.sh: This script builds the Linux Kernel for a Xen Hypervisor.
-The configuration file included here is based on a generic Slackware64 kernel
-config. To run "make menuconfig" before compiling a Xen kernel, use the
-"MENUCONFIG=yes" variable.
-
-Originally, booting a Xen kernel with LILO bootloader is not supported, so GRUB
-has to be used. For those that preffer LILO over GRUB, there is a way to
-accomplish this with mbootpack. Basically, mbootpack takes Linux kernel, initrd
-and Xen VMM, and packages them up into a single file that looks like a bzImage
-Linux kernel. To select how kernel is packed use "BOOTLOADER=" variable. Valid
-options are "lilo" and "grub". Because generic kernel requires an initrd image,
-there are aditional variables that can be used; ROOTMOD (takes a list of
-colon-delimited modules to build into initrd), ROOTFS (takes a name of a module
-to use for root filesystem) and ROOTDEV (takes a name of root filesystem
-device).
-
-After a new kernel image is created, and if bootloader of choice is LILO,
-include these lines in /etc/lilo.conf:
-
-image = /boot/vmlinuz-xen
- root = /dev/sda2
- label = XenLinux
- append="dom0_mem=512M -- nomodeset"
- read-only
-
-Note: everything before "--" is passed to Xen, and everything after "--" is
-passed to the Linux kernel.
-
-When using GRUB, you might want to include these lines in /boot/grub/menu.lst:
-
-title Slackware XenLinux 14.1
- root (hd0,0)
- kernel /boot/xen.gz dom0_mem=524288 console=vga
- module /boot/vmlinuz-xen root=/dev/sda2 ro console=tty0 nomodeset
- module /boot/initrd-xen.gz
-
-Here are some notes/guidances if your dom0 crashes, freezes or maybe the
-screen goes blank at boot:
-- Specify an out of range number to "fbcon" to disable framebuffer altogether,
- which, for example, is done by appending fbcon=map:9 to the Linux kernel (To
- see a list of available devices in your system check /proc/fb).
-- Blacklist framebuffer module from loading. This one requires a bit of
- digging arround in dmesg/lsmod to find out wich module is in use.
-- Disable framebuffer devices by setting CONFIG_FB=n in kernel config.
-- Try booting with another VGA card (sorry).
+Kernel configuration files included here are based on generic Slackware config
+files. For 32bit systems, SMP config was used. To run "make menuconfig" before
+compiling Xen kernel, use:
+
+ MENUCONFIG=yes ./kernel-xen.sh
+
+Originally, booting Xen kernel with LILO bootloader is not supported, and GRUB
+has to be used. With mbootpack this has changed, and LILO can be used as well.
+Basically, mbootpack takes Linux kernel, initrd and Xen VMM, and packages them
+up into a file that looks like a bzImage Linux kernel. This script will select
+LILO by default, changing to GRUB is easy, use:
+
+ BOOTLOADER=grub ./kernel-xen.sh
+
+Slackware generic kernel requires initrd image, this script assumes root is on
+/dev/sda2 and filesystem is ext4, changes are made with:
+
+ ROOTMOD=ext3 ROOTFS=ext3 ROOTDEV=/dev/sda5 ./kernel-xen.sh
+
+When using LILO bootloader, this is what the most of lilo.conf should have:
+
+ image = /boot/vmlinuz-xen
+ root = /dev/sda2
+ label = XenLinux
+ append="dom0_mem=512M -- nomodeset"
+ read-only
+
+Everything on the left side of "--" is passed to Xen kernel, and what's on the
+right, goes to Linux kernel.
+
+When using GRUB, /boot/grub/menu.lst should have these:
+
+ title Slackware XenLinux 14.1
+ root (hd0,0)
+ kernel /boot/xen.gz dom0_mem=524288 console=vga
+ module /boot/vmlinuz-xen root=/dev/sda2 ro console=tty0 nomodeset
+ module /boot/initrd-xen.gz
+
+Troubleshooting dom0 crashes, freezes, blank screen and such:
+
+ * Use /proc/fb to find an out of range device id, for example this can be
+ added to Linux kernel: fbcon=map:9
+ * Look in dmesg/lsmod for potential framebuffer devices to blacklist
+ * Compile Linux kernel with CONFIG_FB=n
+ * Use another VGA card :-)