Qemu on Linux - Revision history

Woozle: /* Current issues */ window title

2006-04-07T16:26:56Z

Current issues: window title

← Older revision		Revision as of 16:26, 7 April 2006
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	* 2005-12-29 Current repository version of Qemu no longer says "warning: could not open /dev/net/tun: no virtual network emulation", but still can't see anyone on network except the local (virtual) machine. DHCP is not fetching an IP address.		* 2005-12-29 Current repository version of Qemu no longer says "warning: could not open /dev/net/tun: no virtual network emulation", but still can't see anyone on network except the local (virtual) machine. DHCP is not fetching an IP address.
	* Need to figure out how to [[mount]] an .img file -- although it's probably not safe to write to an .img while it's in use by the emulator, so this actually wouldn't be all that useful; you'd have to shut down before writing files to the image. Networking is greatly preferable.		* Need to figure out how to [[mount]] an .img file -- although it's probably not safe to write to an .img while it's in use by the emulator, so this actually wouldn't be all that useful; you'd have to shut down before writing files to the image. Networking is greatly preferable.
			* Is there any way to tell Qemu to show a different window title (other than just "Qemu")? When running multiple sessions, it would be nice to be able to tell them apart at a glance.

	===Problems/Solutions===		===Problems/Solutions===
	* '''Problem''': "warning: could not open /dev/net/tun: no virtual network emulation"; '''Solution''':		* '''Problem''': "warning: could not open /dev/net/tun: no virtual network emulation"; '''Solution''':

Woozle: /* Notes */ moved "accessing the image" to its own page

2006-02-22T02:11:55Z

Notes: moved "accessing the image" to its own page

@@ Line 8: / Line 8: @@
 * 2005-12-29 Current repository version of Qemu no longer says "warning: could not open /dev/net/tun: no virtual network emulation", but still can't see anyone on network except the local (virtual) machine. DHCP is not fetching an IP address.
 * Need to figure out how to [[mount]] an .img file -- although it's probably not safe to write to an .img while it's in use by the emulator, so this actually wouldn't be all that useful; you'd have to shut down before writing files to the image. Networking is greatly preferable.
 ===Problems/Solutions===
 * '''Problem''': "warning: could not open /dev/net/tun: no virtual network emulation"; '''Solution''':
@@ Line 15: / Line 14: @@
 ** Try qemu again. If the console asks for a password for "/etc/qemu-ifup", on [[Ubuntu]] the password it wants is your user password (not sure if this must be the user who installed qemu or the user who is running qemu; perhaps they have to be the same?); this may be different for other distros
 ** However, the network card may still not work at this point; see Current Issues above.
-===Creating the disk image===
+===The disk image===
   [[qemu-img]] create <u>win98hd.img</u> 2G
   [[qemu]] -hda <u>win98hd.img</u> -cdrom <u>win98.iso</u> -boot d
-...where <u>win98hd.img</u> is the name of your disk-image file (it can be anything) and _win98.iso_ is the name of a CD ISO image (useful for installing an operating system from CD).
+...where <u>win98hd.img</u> is the name of your disk-image file (it can be anything) and <u>win98.iso</u> is the name of a CD ISO image (useful for installing an operating system from CD).
-===Accessing the disk image from Linux===
+* '''To access the image''', i.e. to read and write files to it by [[mount]]ing it as a folder, see [[accessing a disk image in Linux]]
 ===Accelerator===
 For [[linux]] host systems, there is a loadable kernel module (called [[kqemu]]) that will allow qemu to run at near native speeds.  At the time of this writing, there aren't distributed packages available with the module built, so you'll need to download the source from the website and compile it locally.

Woozle: /* Other stuff */ moved notes from main qemu article, as they were Linux-specific

2006-02-18T17:10:46Z

Other stuff: moved notes from main qemu article, as they were Linux-specific

@@ Line 15: / Line 15: @@
 ** Try qemu again. If the console asks for a password for "/etc/qemu-ifup", on [[Ubuntu]] the password it wants is your user password (not sure if this must be the user who installed qemu or the user who is running qemu; perhaps they have to be the same?); this may be different for other distros
 ** However, the network card may still not work at this point; see Current Issues above.
 ===Other stuff===
 The sample <u>/etc/qemu-ifup</u> file which comes with linux-test-*.tar.gz:
   #!/bin/sh
   [[sudo]] /sbin/[[ifconfig]] $1 172.20.0.1

Woozle: /* Current issues */ link to mount; tweak

2006-02-17T18:31:50Z

Current issues: link to mount; tweak

← Older revision		Revision as of 18:31, 17 February 2006
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	===Current issues===		===Current issues===
	* 2005-12-29 Current repository version of Qemu no longer says "warning: could not open /dev/net/tun: no virtual network emulation", but still can't see anyone on network except the local (virtual) machine. DHCP is not fetching an IP address.		* 2005-12-29 Current repository version of Qemu no longer says "warning: could not open /dev/net/tun: no virtual network emulation", but still can't see anyone on network except the local (virtual) machine. DHCP is not fetching an IP address.
	* Need to figure out how to mount an .img file -- although it's probably not safe to write to an .img while it's in use by the emulator, so this actually wouldn't be all that useful ~~once~~ you'~~ve got a bootable, networked OS~~. Networking is ~~the way to exchange files~~.		* Need to figure out how to [[mount]] an .img file -- although it's probably not safe to write to an .img while it's in use by the emulator, so this actually wouldn't be all that useful; you'd have to shut down before writing files to the image. Networking is greatly preferable.

	===Problems/Solutions===		===Problems/Solutions===
	* '''Problem''': "warning: could not open /dev/net/tun: no virtual network emulation"; '''Solution''':		* '''Problem''': "warning: could not open /dev/net/tun: no virtual network emulation"; '''Solution''':

Woozle: /* Notes */ /etc/qemu-ifup sample

2006-02-15T00:13:53Z

Notes: /etc/qemu-ifup sample

← Older revision		Revision as of 00:13, 15 February 2006
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	** Try qemu again. If the console asks for a password for "/etc/qemu-ifup", on [[Ubuntu]] the password it wants is your user password (not sure if this must be the user who installed qemu or the user who is running qemu; perhaps they have to be the same?); this may be different for other distros		** Try qemu again. If the console asks for a password for "/etc/qemu-ifup", on [[Ubuntu]] the password it wants is your user password (not sure if this must be the user who installed qemu or the user who is running qemu; perhaps they have to be the same?); this may be different for other distros
	** However, the network card may still not work at this point; see Current Issues above.		** However, the network card may still not work at this point; see Current Issues above.
			===Other stuff===
			The sample <u>/etc/qemu-ifup</u> file which comes with linux-test-*.tar.gz:
			#!/bin/sh
			[[sudo]] /sbin/[[ifconfig]] $1 172.20.0.1

Woozle: navbar fix

2006-02-14T22:50:36Z

navbar fix

← Older revision		Revision as of 22:50, 14 February 2006
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	[[Computing]]: [[Linux]]: [[Qemu on Linux]]{{seed}}		[[Computing]]: [[Linux]]: [[Qemu]]: [[Qemu on Linux\|on Linux]]{{seed}}
	This article is about setting up and running the [[Qemu]] emulator on [[Linux]].		This article is about setting up and running the [[Qemu]] emulator on [[Linux]].
	==Reference==		==Reference==

Woozle: slight reorg; qemu manpage article renamed

2006-02-14T22:49:58Z

slight reorg; qemu manpage article renamed

← Older revision		Revision as of 22:49, 14 February 2006
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	[[Computing]]: [[Linux]]: [[Qemu on Linux]]{{seed}}		[[Computing]]: [[Linux]]: [[Qemu on Linux]]{{seed}}

	This article is about setting up and running the [[Qemu]] emulator on [[Linux]].		This article is about setting up and running the [[Qemu]] emulator on [[Linux]].
			==Reference==
			* [[Qemu manpage]]
	==Notes==		==Notes==
	When [[Bochs]] mysteriously stopped being able to run [[Windows 98\|Win98]], I found that Qemu was able to use the exact same .img file Bochs had been using, and it did manage to load Win98 quite easily. It would appear, then, that the setup for Qemu on Linux is probably quite similar to that of [[Bochs on Linux\|Bochs]].		When [[Bochs]] mysteriously stopped being able to run [[Windows 98\|Win98]], I found that Qemu was able to use the exact same .img file Bochs had been using, and it did manage to load Win98 quite easily. It would appear, then, that the setup for Qemu on Linux is probably quite similar to that of [[Bochs on Linux\|Bochs]].
Line 13:		Line 14:
	** Try qemu again. If the console asks for a password for "/etc/qemu-ifup", on [[Ubuntu]] the password it wants is your user password (not sure if this must be the user who installed qemu or the user who is running qemu; perhaps they have to be the same?); this may be different for other distros		** Try qemu again. If the console asks for a password for "/etc/qemu-ifup", on [[Ubuntu]] the password it wants is your user password (not sure if this must be the user who installed qemu or the user who is running qemu; perhaps they have to be the same?); this may be different for other distros
	** However, the network card may still not work at this point; see Current Issues above.		** However, the network card may still not work at this point; see Current Issues above.

	~~==Related Articles==~~
	* [[Qemu Manpages]]

Woozle: /* Notes */ update; problems/solutions

2006-02-14T22:43:47Z

Notes: update; problems/solutions

← Older revision		Revision as of 22:43, 14 February 2006
Line 7:		Line 7:
	* 2005-12-29 Current repository version of Qemu no longer says "warning: could not open /dev/net/tun: no virtual network emulation", but still can't see anyone on network except the local (virtual) machine. DHCP is not fetching an IP address.		* 2005-12-29 Current repository version of Qemu no longer says "warning: could not open /dev/net/tun: no virtual network emulation", but still can't see anyone on network except the local (virtual) machine. DHCP is not fetching an IP address.
	* Need to figure out how to mount an .img file -- although it's probably not safe to write to an .img while it's in use by the emulator, so this actually wouldn't be all that useful once you've got a bootable, networked OS. Networking is the way to exchange files.		* Need to figure out how to mount an .img file -- although it's probably not safe to write to an .img while it's in use by the emulator, so this actually wouldn't be all that useful once you've got a bootable, networked OS. Networking is the way to exchange files.
			===Problems/Solutions===
			* '''Problem''': "warning: could not open /dev/net/tun: no virtual network emulation"; '''Solution''':
			** as root, run "[[modprobe]] [[tun]]"; if no error, then the [[tun]] [[module (Linux)\|module]] has been installed successfully
			** "[[ls]] /dev/net/tun" to make sure the device has been created
			** Try qemu again. If the console asks for a password for "/etc/qemu-ifup", on [[Ubuntu]] the password it wants is your user password (not sure if this must be the user who installed qemu or the user who is running qemu; perhaps they have to be the same?); this may be different for other distros
			** However, the network card may still not work at this point; see Current Issues above.

	==Related Articles==		==Related Articles==
	* [[Qemu Manpages]]		* [[Qemu Manpages]]

Woozle: /* Current issues */ update

2005-12-29T22:17:56Z

Current issues: update

← Older revision		Revision as of 22:17, 29 December 2005
Line 5:		Line 5:
	When [[Bochs]] mysteriously stopped being able to run [[Windows 98\|Win98]], I found that Qemu was able to use the exact same .img file Bochs had been using, and it did manage to load Win98 quite easily. It would appear, then, that the setup for Qemu on Linux is probably quite similar to that of [[Bochs on Linux\|Bochs]].		When [[Bochs]] mysteriously stopped being able to run [[Windows 98\|Win98]], I found that Qemu was able to use the exact same .img file Bochs had been using, and it did manage to load Win98 quite easily. It would appear, then, that the setup for Qemu on Linux is probably quite similar to that of [[Bochs on Linux\|Bochs]].
	===Current issues===		===Current issues===
	*"warning: could not open /dev/net/tun: no virtual network emulation"		* 2005-12-29 Current repository version of Qemu no longer says "warning: could not open /dev/net/tun: no virtual network emulation", but still can't see anyone on network except the local (virtual) machine. DHCP is not fetching an IP address.
	*Need to figure out how to mount an .img file		* Need to figure out how to mount an .img file -- although it's probably not safe to write to an .img while it's in use by the emulator, so this actually wouldn't be all that useful once you've got a bootable, networked OS. Networking is the way to exchange files.

	==Related Articles==		==Related Articles==
	* [[Qemu Manpages]]		* [[Qemu Manpages]]

Woozle: moved manpage text to separate article

2005-12-29T21:14:47Z

moved manpage text to separate article

Show changes