QEMU - Revision history

Prabuanand: rephrased paragraph to improve clarity

2024-12-23T07:51:52Z

rephrased paragraph to improve clarity

← Older revision		Revision as of 07:51, 23 December 2024
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	=== qemu-system-x86_64: warning: hub 0 with no nics ===		=== qemu-system-x86_64: warning: hub 0 with no nics ===
	~~The '''-net user''' option refers to NAT the simplest solution that provides basic network access to the guest. When your host OS does not have a supported network interface, on issuing~~ the command {{Codeline\|qemu-system-x86_64~~}} with~~ '''-net user''' ~~option will~~ generate the above error message and you will not be to use networking.
	~~As long as your host~~ OS ~~has proper~~ working internet ~~with~~ wireless ~~interface, use~~ the option '''-net nic,model=virtio -net user''' ~~instead of~~ '''-net user''' to ~~resolve~~ the ~~above error~~.		Issuing the command {{Codeline\|<Code>qemu-system-x86_64 '''-net user'''</Code>}} may generate the above error message and you will not be to use networking in guest OS, even if you have working internet connection in your Host OS. This is usually due to QEMU lacking support to hardware like usb wireless network adapters. Use the option {{Codeline\|<Code>qemu-system-x86_64 '''-net nic,model{{=}}virtio -net user'''</Code>}} to resolve the above error. Note that '''-net user''' option uses NAT to provide basic network access to the guest OS.

	== See also ==		== See also ==

Prabuanand: added external references

2024-12-23T07:00:05Z

added external references

← Older revision		Revision as of 07:00, 23 December 2024
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	The '''-net user''' option refers to NAT the simplest solution that provides basic network access to the guest. When your host OS does not have a supported network interface, on issuing the command {{Codeline\|qemu-system-x86_64}} with '''-net user''' option will generate the above error message and you will not be to use networking.		The '''-net user''' option refers to NAT the simplest solution that provides basic network access to the guest. When your host OS does not have a supported network interface, on issuing the command {{Codeline\|qemu-system-x86_64}} with '''-net user''' option will generate the above error message and you will not be to use networking.
	As long as your host OS has proper working internet with wireless interface, use the option '''-net nic,model=virtio -net user''' instead of '''-net user''' to resolve the above error.		As long as your host OS has proper working internet with wireless interface, use the option '''-net nic,model=virtio -net user''' instead of '''-net user''' to resolve the above error.

			== See also ==
			[https://wiki.qemu.org/ Qemu Official wiki]
			[https://drewdevault.com/2018/09/10/Getting-started-with-qemu.html Getting started with qemu]

	[[Category:Virtualization]]		[[Category:Virtualization]]

Prabuanand: added reference to -net nic,model=virtio -net user

2024-12-23T06:57:51Z

added reference to -net nic,model=virtio -net user

← Older revision		Revision as of 06:57, 23 December 2024
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	If you are interested in using a bridged network (so that the guest machine can be reached easily from the outside), see [[Bridge]].		If you are interested in using a bridged network (so that the guest machine can be reached easily from the outside), see [[Bridge]].

			== Troubleshooting ==

			=== qemu-system-x86_64: warning: hub 0 with no nics ===
			The '''-net user''' option refers to NAT the simplest solution that provides basic network access to the guest. When your host OS does not have a supported network interface, on issuing the command {{Codeline\|qemu-system-x86_64}} with '''-net user''' option will generate the above error message and you will not be to use networking.
			As long as your host OS has proper working internet with wireless interface, use the option '''-net nic,model=virtio -net user''' instead of '''-net user''' to resolve the above error.

	[[Category:Virtualization]]		[[Category:Virtualization]]

Prabuanand: changed summary and changed heading levels to level 2

2024-12-23T06:45:12Z

changed summary and changed heading levels to level 2

← Older revision		Revision as of 06:45, 23 December 2024
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	[https://wiki.qemu.org/Index.html QEMU] is a ~~very flexible~~ open source ~~virtual~~ machine ~~and~~ emulator~~. QEMU is able to virtualize or emulate x86, x86_64, PowerPC, ARM,~~ and ~~S390 guests~~.		[https://wiki.qemu.org/Index.html QEMU] is a generic and open source machine emulator and virtualizer.

	= Install Alpine Linux in QEMU =		QEMU can be used in several different ways. The most common is for System Emulation, where it provides a virtual model of an entire machine (CPU, memory and emulated devices) to run a guest OS. In this mode the CPU may be fully emulated, or it may leverage hardware virtualization technologies to work with a hypervisor such as [[KVM]], [[Xen Dom0\|Xen]] or other frameworks to allow the guest to run directly on the host CPU.

			The second supported way to use QEMU is User Mode Emulation, where QEMU can launch processes compiled for one CPU on another CPU. In this mode the CPU is always emulated and QEMU is able to virtualize or emulate x86, x86_64, PowerPC, ARM, and S390 guests.

			== Install Alpine Linux in QEMU ==
	{{:Install_Alpine_in_QEMU}}		{{:Install_Alpine_in_QEMU}}

	= Live mode =		== Live mode ==
	{{:Running_Alpine_in_Qemu_Live_mode}}		{{:Running_Alpine_in_Qemu_Live_mode}}

	= Advanced network configuration =		== Advanced network configuration ==

	{{:Running Alpine Linux As a QEMU networked Guest}}		{{:Running Alpine Linux As a QEMU networked Guest}}

	= Using Xorg inside QEMU =		== Using Xorg inside QEMU ==

	The video driver needed for Xorg inside QEMU for Alpine 3.17 and older is {{ic\|{{pkg\|xf86-video-modesetting\|branch=v3.17\|arch=x86*}}}}. In newer releases of alpine, the driver is automatically pulled in as part of {{ic\|setup-xorg-base}}.		The video driver needed for Xorg inside QEMU for Alpine 3.17 and older is {{ic\|{{pkg\|xf86-video-modesetting\|branch=v3.17\|arch=x86*}}}}. In newer releases of alpine, the driver is automatically pulled in as part of {{ic\|setup-xorg-base}}.
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	EndSection}}		EndSection}}

	= Run a guest OS on Alpine Linux using KVM/QEMU =		== Run a guest OS on Alpine Linux using KVM/QEMU ==

	Install:		Install:
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	{{Note\|also install {{Pkg\|virt-manager}} for a KVM/QEMU gui}}		{{Note\|also install {{Pkg\|virt-manager}} for a KVM/QEMU gui}}

	~~<br>~~

	Add '''tun''' to {{Path\|/etc/modules}}:		Add '''tun''' to {{Path\|/etc/modules}}:

	{{Cmd\|# echo tun >> /etc/modules}}		{{Cmd\|# echo tun >> /etc/modules}}

	~~<br>~~

	Starting '''tun''' now:		Starting '''tun''' now:

	{{Cmd\|# modprobe tun}}		{{Cmd\|# modprobe tun}}

	~~<br>~~

	Add your user to the '''kvm''' and '''qemu''' groups		Add your user to the '''kvm''' and '''qemu''' groups
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	Logout for the group changes to take effect		Logout for the group changes to take effect
	<!-- {{Cmd\|qemu-system-x86_64 --enable-kvm -m 1024M -fda M6410220.IMG}} -->		<!-- {{Cmd\|qemu-system-x86_64 --enable-kvm -m 1024M -fda M6410220.IMG}} -->

	~~<br>~~

	Adding services:		Adding services:
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	{{Cmd\|# rc-service libvirtd start}}		{{Cmd\|# rc-service libvirtd start}}
	{{Cmd\|# rc-service libvirt-guests start}}		{{Cmd\|# rc-service libvirt-guests start}}

	~~<br>~~

	If you are interested in using a bridged network (so that the guest machine can be reached easily from the outside), see [[Bridge]].		If you are interested in using a bridged network (so that the guest machine can be reached easily from the outside), see [[Bridge]].



	[[Category:Virtualization]]		[[Category:Virtualization]]

Prabuanand: Removed Architectures Category

2024-10-15T15:54:54Z

Removed Architectures Category

← Older revision		Revision as of 15:54, 15 October 2024
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	~~[[Category:Architectures]]~~
	[[Category:Virtualization]]		[[Category:Virtualization]]

WhyNotHugo: Add category architectures

2024-06-02T21:15:42Z

Add category architectures

← Older revision		Revision as of 21:15, 2 June 2024
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			[[Category:Architectures]]
	[[Category:Virtualization]]		[[Category:Virtualization]]

Zcrayfish: /* Using Xorg inside QEMU */ Use pkg template.

2024-01-21T17:34:16Z

Using Xorg inside QEMU: Use pkg template.

← Older revision		Revision as of 17:34, 21 January 2024
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	= Using Xorg inside QEMU =		= Using Xorg inside QEMU =

	The video driver needed for Xorg inside QEMU for Alpine 3.17 and older is {{ic\|xf86-video-modesetting}}. In newer releases of alpine, the driver is automatically pulled in as part of {{ic\|setup-xorg-base}}.		The video driver needed for Xorg inside QEMU for Alpine 3.17 and older is {{ic\|{{pkg\|xf86-video-modesetting\|branch=v3.17\|arch=x86*}}}}. In newer releases of alpine, the driver is automatically pulled in as part of {{ic\|setup-xorg-base}}.

	{{tip\|Probably for KVM/Qemu guests you want to use ''qxl'' Video and Display ''Spice''. For this purpose install xf86-video-qxl on guest and run a Spice client on the host}}		{{tip\|Probably for KVM/Qemu guests you want to use ''qxl'' Video and Display ''Spice''. For this purpose install xf86-video-qxl on guest and run a Spice client on the host}}

Zcrayfish: /* Install Alpine Linux in QEMU */ Removed merge proposal: transcluding will get us by for a while.

2024-01-21T17:22:32Z

Install Alpine Linux in QEMU: Removed merge proposal: transcluding will get us by for a while.

← Older revision		Revision as of 17:22, 21 January 2024
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	= Install Alpine Linux in QEMU =		= Install Alpine Linux in QEMU =
	~~{{merge\|Installing_Alpine_in_a_virtual_machine#KVM_/_QEMU\|Installing Alpine in QEMU and installing QEMU in Alpine should be handled separately.}}~~
	{{:Install_Alpine_in_QEMU}}		{{:Install_Alpine_in_QEMU}}

Zcrayfish: Undo revision 26326 by Zcrayfish (talk) I totally missed that the content here is also transcluded...

2024-01-21T17:21:46Z

Undo revision 26326 by Zcrayfish (talk) I totally missed that the content here is also transcluded...

← Older revision		Revision as of 17:21, 21 January 2024
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	[https://wiki.qemu.org/Index.html QEMU] is a very flexible open source virtual machine and emulator. QEMU is able to virtualize or emulate x86, x86_64, PowerPC, ARM, and S390 guests.		[https://wiki.qemu.org/Index.html QEMU] is a very flexible open source virtual machine and emulator. QEMU is able to virtualize or emulate x86, x86_64, PowerPC, ARM, and S390 guests.

	~~<onlyinclude><!--This section is transcluded on: Installing Alpine in a virtual machine-->~~
	= Install Alpine Linux in QEMU =		= Install Alpine Linux in QEMU =
	{{merge\|Installing_Alpine_in_a_virtual_machine#KVM_/_QEMU\|Installing Alpine in QEMU and installing QEMU in Alpine should be handled separately.}}		{{merge\|Installing_Alpine_in_a_virtual_machine#KVM_/_QEMU\|Installing Alpine in QEMU and installing QEMU in Alpine should be handled separately.}}
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	Option "ENABLE_SURFACES" "False"		Option "ENABLE_SURFACES" "False"
	EndSection}}		EndSection}}
	~~</onlyinclude><!--The above is transcluded on Installing Alpine in a virtual machine-->~~
	= Run a guest OS on Alpine Linux using KVM/QEMU =		= Run a guest OS on Alpine Linux using KVM/QEMU =

Zcrayfish: Enable this article to be partially transcluded on "Installing Alpine in a virtual machine"

2024-01-21T17:13:16Z

Enable this article to be partially transcluded on "Installing Alpine in a virtual machine"

← Older revision		Revision as of 17:13, 21 January 2024
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	[https://wiki.qemu.org/Index.html QEMU] is a very flexible open source virtual machine and emulator. QEMU is able to virtualize or emulate x86, x86_64, PowerPC, ARM, and S390 guests.		[https://wiki.qemu.org/Index.html QEMU] is a very flexible open source virtual machine and emulator. QEMU is able to virtualize or emulate x86, x86_64, PowerPC, ARM, and S390 guests.

			<onlyinclude><!--This section is transcluded on: Installing Alpine in a virtual machine-->
	= Install Alpine Linux in QEMU =		= Install Alpine Linux in QEMU =
	{{merge\|Installing_Alpine_in_a_virtual_machine#KVM_/_QEMU\|Installing Alpine in QEMU and installing QEMU in Alpine should be handled separately.}}		{{merge\|Installing_Alpine_in_a_virtual_machine#KVM_/_QEMU\|Installing Alpine in QEMU and installing QEMU in Alpine should be handled separately.}}
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	Option "ENABLE_SURFACES" "False"		Option "ENABLE_SURFACES" "False"
	EndSection}}		EndSection}}
			</onlyinclude><!--The above is transcluded on Installing Alpine in a virtual machine-->
	= Run a guest OS on Alpine Linux using KVM/QEMU =		= Run a guest OS on Alpine Linux using KVM/QEMU =