Xen On Funtoo From Scratch
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STUB - WORK IN PROGRESS
Hardware Configuration
- VGA: Nvidia GeForce 9800 GT
- CPU: Intel Core i7 3770
- Motherboard: DQ77MK
Used Software
- Dom0 OS: Funtoo GNU/Linux distro (derrived from gentoo).
- Kernel: 3.4.4
- Xen: 4.2.0-unstable rev 25099
- DomU OS: Windows XP SP3
Reference documentation
- Creating bootable USB-stick from gentoo livecd: http://www.gentoo.org/doc/en/liveusb.xml
- Funtoo installation: http://www.funtoo.org/wiki/Funtoo_Linux_Installation
- Xen 4.1 installation on gentoo: http://en.gentoo-wiki.com/wiki/Xen4.1
- Xen 4.2 installation on ubuntu: http://www.davidgis.fr/blog/index.php?2011/12/07/860-xen-%2042unstable-patches-for-vga-pass-through
- LVM installation guide on funtoo: http://www.funtoo.org/wiki/Rootfs_over_encrypted_lvm
Make bootable USB
Preparation
# emerge -av dosfstools syslinux
Make partitions
# fdisk -l /dev/sdb
Disk /dev/sdb: 8422 MB, 8422162432 bytes
239 heads, 47 sectors/track, 1464 cylinders, total 16449536 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0008aec7
Device Boot Start End Blocks Id System
/dev/sdb1 * 2048 16449535 8223744 b W95 FAT32
Install MBR
# dd if=/usr/share/syslinux/mbr.bin of=/dev/sdb 0+1 records in 0+1 records out 440 bytes (440 B) copied, 0.0190098 s, 23.1 kB/s
Make fat32 filesystem
# mkdosfs -F32 /dev/sdb1 mkdosfs 3.0.9 (31 Jan 2010)
Download Gentoo LiveCD iso
Go to http://www.gentoo.org/main/en/where.xml ; pick mirror you like and download install-amd64-minimal-[0-9]*.iso, for example - this one:
wget http://distfiles.gentoo.org/releases/amd64/autobuilds/current-iso/install-amd64-minimal-20120621.iso
Mount gentoo LiveCD
# mkdir -p /mnt/cdrom/ # mount -o loop install-amd64-minimal-20120621.iso /mnt/cdrom/ mount: warning: /mnt/cdrom/ seems to be mounted read-only.
Mount usb stick
# mkdir -p /mnt/usb/ # mount /dev/sdb1 /mnt/usb/
Copy contents of LiveCD to usb stick
# cp -aR /mnt/cdrom/* /mnt/usb/
# mv /mnt/usb/isolinux/* /mnt/usb
# mv /mnt/usb/isolinux.cfg /mnt/usb/syslinux.cfg
# rm -rf /mnt/usb/isolinux*
# mv /mnt/usb/memtest86 /mnt/usb/memtest
# sed -i \
-e "s:cdroot:cdroot slowusb:" \
-e "s:kernel memtest86:kernel memtest:" \
/mnt/usb/syslinux.cfg
Unmount medias
# umount /mnt/cdrom/ # umount /mnt/usb/
Install syslinux
note guide # syslinux /dev/sdb1
Boot from USB-stick
If in trouble, try following gentoo handbook
Install Funtoo
Once booted, do this:
Partition hard drive
# gdisk -l /dev/sda
GPT fdisk (gdisk) version 0.8.4
Partition table scan:
MBR: protective
BSD: not present
APM: not present
GPT: present
Found valid GPT with protective MBR; using GPT.
Disk /dev/sda: 1953525168 sectors, 931.5 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): DDF92951-E1C2-4138-B01C-71051D08D1FB
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 1953525134
Partitions will be aligned on 2048-sector boundaries
Total free space is 2014 sectors (1007.0 KiB)
Number Start (sector) End (sector) Size Code Name
1 2048 67583 32.0 MiB EF02 BIOS boot partition
2 67584 1091583 500.0 MiB 8300 Linux filesystem
3 1091584 17868799 8.0 GiB 8200 Linux swap
4 17868800 1953525134 923.0 GiB 8E00 Linux LVM
Setup LVM
# pvcreate /dev/sda4
Writing physical volume data to disk "/dev/sda4"
Physical volume "/dev/sda4" successfully created
# vgcreate data /dev/sda4
Volume group "data" successfully created
# lvcreate -L40G -n root data
Logical volume "root" created
# lvcreate -L40G -n winxp data
Logical volume "winxp" created
Setup Filesystems
# mkfs.ext3 /dev/sda2 # mkswap /dev/sda3 # mkfs.ext4 /dev/data/root
Mount filesystems
# mkdir /mnt/funtoo # mount /dev/data/root /mnt/funtoo/ # mkdir /mnt/funtoo/boot # mount /dev/sda2 /mnt/funtoo/boot/ # cd /mnt/funtoo/
Setup networking inside of LiveUSB OS
# /etc/init.d/dhcpcd start
Download Funtoo stage3 distribution
# wget http://ftp.osuosl.org/pub/funtoo/funtoo-current/x86-64bit/corei7/stage3-current.tar.xz
Unpack Funtoo distribution
# tar xJpf stage3-current.tar.xz
Chrooting
# mount --bind /dev/ /mnt/funtoo/dev/ # mount --bind /proc/ /mnt/funtoo/proc # cp /etc/resolv.conf /mnt/funtoo/etc/ # chroot /mnt/funtoo/
Syncing
# emerge --sync
Configure Funtoo
/etc/fstab
# <fs> <mountpoint> <type> <opts> <dump/pass> /dev/sda2 /boot ext3 defaults 1 2 /dev/sda3 none swap sw 0 0 /dev/data/root / ext4 noatime 0 1
/etc/localtime
# cp /usr/share/zoneinfo/Europe/Moscow /etc/localtime
/etc/make.conf
ACCEPT_KEYWORDS="~amd64" CHOST="x86_64-pc-linux-gnu" CFLAGS="-march=corei7 -O2 -pipe" CXXFLAGS="-march=corei7 -O2 -pipe" SYNC="git://github.com/funtoo/ports-2012.git" USE="X xinerama" VIDEO_CARDS="nvidia" MAKEOPTS="-j10"
Install system-wide services
# echo "sys-boot/boot-update" >> /etc/portage/package.unmask # echo "sys-devel/automake" >> /etc/portage/package.unmask # emerge -av eix lvm2 grub bridge-utils vixie-cron syslog-ng logrotate =sys-boot/boot-update-1.6.2 # eix-update # rc-update add lvm default # rc-update add vixie-cron default # rc-update add syslog-ng default # rc-update add sshd default # rc-update add dhcpcd default # passwd
Install Kernel
# emerge -av gentoo-sources
Configure kernel
# cd /usr/src/linux # make menuconfig
General setup --->
<*> Kernel .config support
[*] Enable access to .config through /proc/config.gz
Bus options (PCI etc.) --->
<*> PCI Stub driver
Processor type and features --->
[*] Paravirtualized guest support --->
[*] Xen guest support
[*] Networking support --->
Networking options --->
<*> 802.1d Ethernet Bridging
Device Drivers --->
[*] Block devices (NEW) --->
<*> Xen virtual block device support
<*> Xen block-device backend driver
Device Drivers --->
[*] Network device support --->
[*] Ethernet driver support (NEW) --->
[*] Intel devices (NEW)
< > Intel(R) PRO/100+ support
< > Intel(R) PRO/1000 Gigabit Ethernet support
<*> Intel(R) PRO/1000 PCI-Express Gigabit Ethernet support
< > Intel(R) 82575/82576 PCI-Express Gigabit Ethernet support
< > Intel(R) 82576 Virtual Function Ethernet support
< > Intel(R) PRO/10GbE support
< > Intel(R) 10GbE PCI Express adapters support
< > Intel(R) 82599 Virtual Function Ethernet support
[ ] Intel (82586/82593/82596) devices
<*> NetXen Multi port (1/10) Gigabit Ethernet NIC
Device Drivers --->
[*] Network device support --->
<*> Universal TUN/TAP device driver support
<*> Xen network device frontend driver
<*> Xen backend network device
Device Drivers --->
Xen driver support --->
[*] Xen memory balloon driver (NEW)
[*] Scrub pages before returning them to system (NEW)
<*> Xen /dev/xen/evtchn device (NEW)
[*] Backend driver support (NEW)
<*> Xen filesystem (NEW)
[*] Create compatibility mount point /proc/xen (NEW)
[*] Create xen entries under /sys/hypervisor (NEW)
<*> userspace grant access device driver (NEW)
<*> User-space grant reference allocator driver (NEW)
<*> xen platform pci device driver (NEW)
<*> Xen ACPI processor
File systems --->
<*> Ext3 journalling file system support
<*> The Extended 4 (ext4) filesystem
[*] Use ext4 for ext2/ext3 file systems (NEW)
[*] Ext4 extended attributes (NEW)
# make -j 10 # make install # make modules_install
Install initramfs
# mkdir /root/initramfs # cd /root/initramfs/ # git clone git://github.com/slashbeast/better-initramfs.git # cd better-initramfs # bootstrap/bootstrap-all # make prepare # make image # cp output/initramfs.cpio.gz /boot/
Configure bootloader
# grub-install --no-floppy /dev/sda
/etc/boot.cfg
boot {
generate grub
default "Funtoo Linux XEN"
timeout 3
}
"Funtoo Linux" {
kernel vmlinuz[-v]
initrd /initramfs.cpio.gz
params += root=/dev/data/root lvm
}
"Funtoo Linux XEN" {
type xen
xenkernel xen.gz
kernel vmlinuz[-v]
initrd /initramfs.cpio.gz
params += root=/dev/data/root lvm
}
Update
# boot-update
Booting in new system
When booting, select regular (non-XEN) kernel at the first time. It is because we don't have XEN userspace tools to operate with yet.
# reboot
Install xen 4.2-unsable
Get current Nvidia flash ROM
# wget http://www.davidgis.fr/download/nvflash_5.100.1_usb.iso.tar.bz2 # tar xvf nvflash_5.100.1_usb.iso.tar.bz2 # dd if=nvflash_5.100.1_usb.iso of=/dev/sdb # reboot
Boot from USB stick
C:\> nvflash.exe --save vgabios.rom
Boot back to the system
Choose non-xen kernel again
Install XEN 4.2
# emerge mercurial yajl dev86 bin86 iasl # rev=25099; hg clone -r $rev http://xenbits.xensource.com/staging/xen-unstable.hg/ xen-unstable.hg-rev-${rev} # cd xen-unstable.hg-rev-25099/tools/ # ./configure # sed '/Werror/d' -i tests/mce-test/tools/Makefile # make FLEX=flex -j 10 # make clean # cd ../ # wget http://www.davidgis.fr/download/xen-4.2_rev24798_gfx-passthrough-patchs.tar.bz2 # tar -xvf xen-4.2_rev24798_gfx-passthrough-patchs.tar.bz2 # for file in xen-4.2_rev24798_gfx-passthrough-patchs/*; do patch -p1 < $file; done
Now the tricky part. You have to tune one of asl-files to support your very own VGA card memory ranges. It goes like there:
# lspci | grep VGA 01:00.0 VGA compatible controller: NVIDIA Corporation G92 [GeForce 9800 GT] (rev a2) # dmesg | grep 01:00.0 | grep mem | head -n3 [ 0.281769] pci 0000:01:00.0: reg 10: [mem 0xf6000000-0xf6ffffff] [ 0.281776] pci 0000:01:00.0: reg 14: [mem 0xe0000000-0xefffffff 64bit pref] [ 0.281783] pci 0000:01:00.0: reg 1c: [mem 0xf4000000-0xf5ffffff 64bit]
These three ranges goes to tools/firmware/hvmloader/acpi/dsdt.asl by formula
MaxRange - MinRange + 1
(consider using some hex calculator (emerge wcalc), for example - `wcalc -h`)
In this example this would be:
- 0xf6ffffff - 0xf6000000 + 1 = 0x01000000
- 0xefffffff - 0xe0000000 + 1 = 0x10000000
- 0xf5ffffff - 0xf4000000 + 1 = 0x02000000
Then edit tools/firmware/hvmloader/acpi/dsdt.asl file as follows:
/* reserve MMIO BARs of gfx for 1:1 mapping */
DWordMemory(
ResourceProducer, PosDecode, MinFixed, MaxFixed,
Cacheable, ReadWrite,
0x00000000,
0xf6000000,
0xf6ffffff,
0x00000000,
0x01000000)
DWordMemory(
ResourceProducer, PosDecode, MinFixed, MaxFixed,
NonCacheable, ReadWrite,
0x00000000,
0xe0000000,
0xefffffff,
0x00000000,
0x10000000)
DWordMemory(
ResourceProducer, PosDecode, MinFixed, MaxFixed,
Cacheable, ReadWrite,
0x00000000,
0xf4000000,
0xf5ffffff,
0x00000000,
0x02000000)
Remember USB stick with vgabios.rom on it we dumped before? Now we need it.
# mkdir /mnt/usb # mount /dev/sdb1 /mnt/usb/ # cp /mnt/usb/VGABIOS.ROM tools/firmware/vgabios/vgabios-pt.bin
Thats it. Now simply (and dirty) make && make install all needed components:
# make xen && make tools && make stubdom # make install-xen && make install-tools PYTHON_PREFIX_ARG= && make install-stubdom
Add following script to /etc/init.d/xen
#!/sbin/runscript
# Copyright 1999-2011 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/net-misc/openssh/files/sshd.rc6.3,v 1.2 2011/09/14 21:46:19 polynomial-c Exp $
start() {
/etc/init.d/xencommons start
/etc/init.d/xend start
}
stop() {
/etc/init.d/xend stop
/etc/init.d/xencommons stop
}
# chmod +x /etc/init.d/xen # rc-update add xen default
Now you can safely choose XEN kernel - it should be bootable.
# reboot
- install winxp
- integreate
