RunningKVM - Revision history

Bsd: Bsd moved page HOWTO1 to RunningKVM: Rename to something more appropriate

2015-05-16T20:57:12Z

Bsd moved page HOWTO1 to RunningKVM: Rename to something more appropriate

← Older revision

Revision as of 16:57, 16 May 2015

John.cooper at 08:37, 19 February 2010

2010-02-19T08:37:08Z

← Older revision		Revision as of 04:37, 19 February 2010
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	== Creating a disk image for the guest ==		== Creating a disk image for the guest ==
	/usr/local/kvm/bin/qemu-img create -f ~~qcow~~ vdisk.img 10G		/usr/local/kvm/bin/qemu-img create -f qcow2 vdisk.img 10G

KenniLund: Updated page to use qemu-kvm stable branch and kvm-kmod

2010-01-29T17:28:42Z

Updated page to use qemu-kvm stable branch and kvm-kmod

← Older revision		Revision as of 13:28, 29 January 2010
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	You will need (see download section):		You will need (see download section):

	* kvm-''release''.tar.gz		* qemu-kvm-''release''.tar.gz
			* kvm-kmod-''release''.tar.bz2 (if you want/need to compile kernel modules yourself)
	* A VT capable Intel processor, or an SVM capable AMD processor		* A VT capable Intel processor, or an SVM capable AMD processor
	* qemu prerequisites:		* qemu prerequisites:
Line 24:		Line 25:
	There exists a [attachment:kvm-26-alt-grab.diff.gz patch] which will change the SDL keygrab combination from ctrl-alt to ctrl-alt-shift. It was written primarily to deal with the heavy use of ctrl-alt-delete in NT-based VMs.		There exists a [attachment:kvm-26-alt-grab.diff.gz patch] which will change the SDL keygrab combination from ctrl-alt to ctrl-alt-shift. It was written primarily to deal with the heavy use of ctrl-alt-delete in NT-based VMs.

	If you are using a ~~patched~~ kernel (e.g. ~~a recent -mm kernel or the~~ kvm ~~git tree), configure the kernel normally~~, boot into it, and:		If you are using a recent kernel (2.6.25+) with kvm modules included, boot into it, and:

	tar xzf kvm-release.tar.gz		tar xzf qemu-kvm-release.tar.gz
	cd kvm-release		cd qemu-kvm-release
	./configure --prefix=/usr/local/kvm ~~--with-patched-kernel~~		./configure --prefix=/usr/local/kvm
	make		make
	sudo make install		sudo make install
Line 34:		Line 35:
	# or: sudo /sbin/modprobe kvm-amd		# or: sudo /sbin/modprobe kvm-amd

	If you're ~~''not'' running~~ a ~~patched~~ kernel:		If you're using an older kernel, or a kernel from your distribution without the kvm modules, you'll have to compile the modules yourself:

	tar ~~xzf~~ kvm-release.tar.gz		tar xjf kvm-kmod-release.tar.bz2
	cd kvm-release		cd kvm-kmod-release
	./configure ~~--prefix=/usr/local/kvm~~		./configure
	make		make
	sudo make install		sudo make install

ShengYang: add libpci-dev to required list, for device assignment

2009-05-31T03:23:59Z

add libpci-dev to required list, for device assignment

← Older revision		Revision as of 23:23, 30 May 2009
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	On a debian etch system you can install the prerequisites with:		On a debian etch system you can install the prerequisites with:
	apt-get install gcc libsdl1.2-dev zlib1g-dev libasound2-dev linux-kernel-headers pkg-config libgnutls-dev		apt-get install gcc libsdl1.2-dev zlib1g-dev libasound2-dev linux-kernel-headers pkg-config libgnutls-dev libpci-dev

	'''Note:''' When building from git, you also need gawk.		'''Note:''' When building from git, you also need gawk.

Iggy: remove note about using -no-acpi with windows as it hasn't been the case for a while

2009-05-15T23:00:38Z

remove note about using -no-acpi with windows as it hasn't been the case for a while

← Older revision		Revision as of 19:00, 15 May 2009
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	(kvm doesn't make a distinction between i386 and x86_64 so even in i386 you should use `qemu-system-x86_64`)[[BR]]		(kvm doesn't make a distinction between i386 and x86_64 so even in i386 you should use `qemu-system-x86_64`)[[BR]]

	If you're installing Windows, forcing your emulated machine to not have ACPI support by using -no-acpi could result in much faster installation and performance while running. See ["Windows ACPI Workaround"] for details.

	If you have less than 1GB of memory don't use the -m 384 flag (which allocates 384 MB of RAM for the guest). For computers with 512MB of RAM it's safe to use -m 192, or even -m 128 (the default)		If you have less than 1GB of memory don't use the -m 384 flag (which allocates 384 MB of RAM for the guest). For computers with 512MB of RAM it's safe to use -m 192, or even -m 128 (the default)

Uril: Use qemu-kvm when using a kvm package on RHEL or similar

2009-03-24T12:46:15Z

Use qemu-kvm when using a kvm package on RHEL or similar

← Older revision		Revision as of 08:46, 24 March 2009
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	If you're on Debian Etch, substitute `kvm` for `qemu-system-x86_64` (thanks to fromport, soren and mael_). See also the entries under the label "Ubuntu" on the [[HOWTO]] page.		If you're on Debian Etch, substitute `kvm` for `qemu-system-x86_64` (thanks to fromport, soren and mael_). See also the entries under the label "Ubuntu" on the [[HOWTO]] page.
	qemu-system-x86_64`		qemu-system-x86_64`

			If you're on Fedora/RHEL/CentOS (and installed a kvm package and not built kvm yourself from source) then substitute '''qemu-kvm''' for '''qemu-system-x86_64'''

WikiSysop at 13:12, 4 February 2009

2009-02-04T13:12:37Z

New page

== Prerequisites ==

You will need (see download section):

* kvm-''release''.tar.gz
* A VT capable Intel processor, or an SVM capable AMD processor
* qemu prerequisites:
** `zlib` libraries and headers
** `SDL` libraries and headers
** `alsa` libraries and headers (optional alsa support: disabled by default but can be enabled with --enable-alsa)
** `gnutls` libraries and headers (optional VNC TLS support: enabled by default but can be disabled with --disable-vnc-tls)
** kernel headers (on Fedora, the kernel-devel package)

On a debian etch system you can install the prerequisites with:
apt-get install gcc libsdl1.2-dev zlib1g-dev libasound2-dev linux-kernel-headers pkg-config libgnutls-dev

'''Note:''' When building from git, you also need gawk.

Please report problems (and successes) to the [[Lists,_IRC| mailing list]].

== Unpacking and configuring kvm components ==

You may wish to take a look at the ["Kernel-optimizations"] page.
There exists a [attachment:kvm-26-alt-grab.diff.gz patch] which will change the SDL keygrab combination from ctrl-alt to ctrl-alt-shift. It was written primarily to deal with the heavy use of ctrl-alt-delete in NT-based VMs.

If you are using a patched kernel (e.g. a recent -mm kernel or the kvm git tree), configure the kernel normally, boot into it, and:

tar xzf kvm-release.tar.gz
cd kvm-release
./configure --prefix=/usr/local/kvm --with-patched-kernel
make
sudo make install
sudo /sbin/modprobe kvm-intel
# or: sudo /sbin/modprobe kvm-amd

If you're ''not'' running a patched kernel:

tar xzf kvm-release.tar.gz
cd kvm-release
./configure --prefix=/usr/local/kvm
make
sudo make install
sudo /sbin/modprobe kvm-intel
# or: sudo /sbin/modprobe kvm-amd

'''Note:''' if sound doesn't play in the guest vm you can add --audio-drv-list="alsa oss" to ./configure as explained in http://www.linux-kvm.com/content/sound-problem-solved

== Creating a disk image for the guest ==
/usr/local/kvm/bin/qemu-img create -f qcow vdisk.img 10G

== Installing a guest operating system ==

sudo /usr/local/kvm/bin/qemu-system-x86_64 -hda vdisk.img -cdrom /path/to/boot-media.iso \
-boot d -m 384

(kvm doesn't make a distinction between i386 and x86_64 so even in i386 you should use `qemu-system-x86_64`)[[BR]]

If you're installing Windows, forcing your emulated machine to not have ACPI support by using -no-acpi could result in much faster installation and performance while running. See ["Windows ACPI Workaround"] for details.

If you have less than 1GB of memory don't use the -m 384 flag (which allocates 384 MB of RAM for the guest). For computers with 512MB of RAM it's safe to use -m 192, or even -m 128 (the default)

== Running the newly-installed guest ==
sudo /usr/local/kvm/bin/qemu-system-x86_64 vdisk.img -m 384

or a slightly more complicated example, where it is assumed that bridged networking is available on tap0; see ["Kernel-optimizations"] for some setup hints:

/usr/local/kvm/bin/qemu-system-x86_64 -hda xp-curr.img -m 512 -soundhw es1370 -no-acpi -snapshot -localtime -boot c -usb -usbdevice tablet -net nic,vlan=0,macaddr=00:00:10:52:37:48 -net tap,vlan=0,ifname=tap0,script=no

(kvm doesn't make a distinction between i386 and x86_64 so even in i386 you should use `qemu-system-x86_64`)

If you're on Debian Etch, substitute `kvm` for `qemu-system-x86_64` (thanks to fromport, soren and mael_). See also the entries under the label "Ubuntu" on the [[HOWTO]] page.
qemu-system-x86_64`