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Dobrica Pavlinušić's random unstructured stuff
Virtualization workshop: Revision 45
Materijali za "Virtualizacija na Linuxu -- jednostavan izbor zar ne?"<http://www.hroug.hr/hr/hroug_konferencija/u_pripremi/hroug2008_rovinj/predavanja_radionice_demogroundi/radionice/virtualizacija_na_linuxu_jednostavan_izbor_zar_ne>
{toc: } * "Virtualisation in Debian - Present and future"<https://penta.debconf.org/dc8_schedule/events/275.en.html> - DebConf 2008 ^ Hardware ^^ CPU Support for hardware virtualization: .pre egrep '^flags.*(vmx|svm)' /proc/cpuinfo .pre | | *vmx/svm* | no vmx/svn | | *USB* | kvm | qemu+kqemu | | no USB | VirtualBox | | How much CPU do I use? :-) .pre dpavlin@brr:~$ cpufreq-info cpufrequtils 004: cpufreq-info (C) Dominik Brodowski 2004-2006 Report errors and bugs to cpufreq@lists.linux.org.uk, please. analyzing CPU 0: driver: acpi-cpufreq CPUs which need to switch frequency at the same time: 0 hardware limits: 2.40 GHz - 3.20 GHz available frequency steps: 3.20 GHz, 2.80 GHz, 2.40 GHz available cpufreq governors: userspace, powersave, ondemand, conservative, performance current policy: frequency should be within 2.40 GHz and 3.20 GHz. The governor "ondemand" may decide which speed to use within this range. current CPU frequency is 2.40 GHz. cpufreq stats: 3.20 GHz:1.80%, 2.80 GHz:0.00%, 2.40 GHz:98.20% (17) .pre ^^ Disk performance {include: [Disk performance]} ^ KVM {include: [KVM]} ^ QEMU {include: [QEMU]} ^ VirtualBox Seems to be best supported right now (package in Debian, optional drivers for Windows, starting unmodified VMWare machines -- after you guess right settings that is!) * "Windows ACPI problem"<http://www.virtualbox.org/ticket/995> - `agp440.sys` problem * "How to migrate existing Windows installations to VirtualBox"<http://www.virtualbox.org/wiki/Migrate_Windows> - it's applicable to other emulators as well! OSE version (no USB!) comes in Debian, compile `vboxdrv` with: .pre root@llin:~# module-assistant a-i virtualbox-ose .pre ^ OpenVZ {include: [OpenVZ]} ^ VMWare ^^ Convert image to monolithic growable disk This format is supported by other emulators, so it's a best choice. .pre dpavlin@llin:/rest/vmware/winxp$ vmware-vdiskmanager -r Windows\ XP\ Professional.vmdk -t 0 /mnt/usb/vmware/win-xp.vmdk Using log file /tmp/vmware-dpavlin/vdiskmanager.log Creating a monolithic growable disk '/mnt/usb/vmware/win-xp.vmdk' Convert: 57% done. .pre ^^ Resize disk image .pre dpavlin@llin:/mnt/usb/vmware$ qemu-img info win-xp.vmdk (VMDK) image open: flags=0x2 filename=win-xp.vmdk image: win-xp.vmdk file format: vmdk virtual size: 3.0G (3221225472 bytes) disk size: 3.0G .pre There is a way to extend image using only `qemu-img`, but that involves converting image to raw and appending zeros at end to produce larger image. However, we will do that using VMWare's `vmware-vdiskmanager` .pre dpavlin@llin:/mnt/usb/vmware$ vmware-vdiskmanager -x 6Gb win-xp.vmdk Using log file /tmp/vmware-dpavlin/vdiskmanager.log Grow: 100% done. The old geometry C/H/S of the disk is: 6241/16/63 The new geometry C/H/S of the disk is: 12483/16/63 Disk expansion completed successfully. WARNING: If the virtual disk is partitioned, you must use a third-party utility in the virtual machine to expand the size of the partitions. For more information, see: http://www.vmware.com/support/kb/enduser/std_adp.php?p_faqid=1647 .pre This will make disk unbootable, so we will have to resize partition. Download "GParted"<http://gparted.sourceforge.net/> live CD and resize partition using it... .pre kvm -m 512 -hda win-xp.vmdk -no-acpi -std-vga -cdrom /rest/iso/gparted-live-0.3.9-4.iso -boot d .pre ^^ Convert vmdk to qcow .pre dpavlin@llin:/mnt/usb/vmware$ qemu-img convert -O qcow win-xp.vmdk win-xp.qcow (VMDK) image open: flags=0x2 filename=win-xp.vmdk dpavlin@llin:/mnt/usb/vmware$ ls -al win-xp.* -rw-r--r-- 1 dpavlin dpavlin 3190906880 Oct 9 17:41 win-xp.qcow -rw------- 1 dpavlin dpavlin 3208577024 Oct 9 17:35 win-xp.vmdk .pre ^ Xen ^ disk speed this is domU .pre root@vega:~# uname -a Linux vega 2.6.18-6-xen-amd64 #1 SMP Mon Jun 16 23:42:47 UTC 2008 x86_64 GNU/Linux root@vega:~# hdparm -tT /dev/hda1 /dev/hda1: Timing cached reads: 5488 MB in 2.00 seconds = 2750.74 MB/sec Timing buffered disk reads: 318 MB in 3.00 seconds = 105.98 MB/sec .pre ^ Guest OS ^^ Windows * `agp440.sys` "killed my VMWare XP installation!"<http://support.microsoft.com/kb/324764> * `intelppm.dll` blue screen of death -- http://kvm.qumranet.com/kvmwiki/Windows_ACPI_Workaround * "Install VBEMP x86 Project Universal VESA/VBE Video Display Driver"<http://www.geocities.com/bearwindows/vbemp.htm> to get different resolutions on virtual machine Remove them: .pre cd c:\windows\system32\drivers del agp440.sys del intelppm.dll .pre Startup script: .pre # 3M RFID 810 usbdev=0403:6001 sudo chown -R $USER /proc/bus/usb/* kvm -m 512 -hda win-xp.vmdk -no-acpi -std-vga -monitor stdio -usb -usbdevice host:$usbdev .pre USB sniffing: .pre info usbhost .pre ^^ Solaris * http://opensolaris.org/os/project/qemu/QEMUGuests/guest/ It will not boot pass "Loading Nexenta..." stage without `kvm` module loaded. .pre # to install from iso image kvm -m 512 -hda solaris.vmdk -cdrom ../iso/nexenta-core-platform_1.0.1-b85-test4_x86.iso -boot d -net nic,model=rtl8139 -net user # run after installation kvm -m 512 -hda solaris.vmdk -net nic,model=rtl8139 -net user .pre ^^ Darwin * http://www.puredarwin.org/ ^^ Plan 9 * http://wiki.glugcen.dc.uba.ar/Empezando_con_Plan9 * http://www.oszoo.org/wiki/index.php/Plan9_070107.zip |