On Thu, Jan 19, 2017 at 03:20:33PM +0330, Mahmood Naderan wrote:
> May i ask what is the difference between the following commands
>
> 1) qemu-img create -o backing_file base.img new.img 10G
> 2) qemu-img create -f qcow2 -b base.img new.img
There's several things here:
# "-o backing_file=base.
On Mon, Jan 23, 2017 at 01:00:26AM +0100, Joe wrote:
> I'm trying Qemu (2.8.0) on Slackware GNU Linux 14.2 (64-bit) host.
> I've a Windows XP (guest) raw image which was working with Qemu
> times ago (I used it on an older Slackware version as host system).
The default hardware emulated by QEMU c
On Fri, Jan 13, 2017 at 06:57:53PM +0100, Gianni Costanzi wrote:
> Hi,
> I'm new here and I've started using QEMU when I've started playing
> with Unetlab/EVE Network simulator.
>
> I have some questions about compression and images with a compressed
> backing file:
I think there's some misunders
I'd like to know how to virtually disconnect and connect the ethernet
cable on a VM (I am using virtio).
When "disconnected", the ethernet adapter should still be visible by
the guest, but with the cable being disconnected.
I mean, both the command line and the monitor commands.
TIA.
--
Vincenzo R
Thank you very much Alberto,
I've really misunderstood how compression worked. BTW it seems good to
compress some big base-images.
Thank you very much for having explained the concept very well :)
Best regards,
Gianni Costanzi
-
On Wed, Jan 25, 2017 at 9:38 AM, Alberto Garcia wrote:
> On Thu, Jan 19, 2017 at 03:20:33PM +0330, Mahmood Naderan wrote:
> > May i ask what is the difference between the following commands
> >
> > 1) qemu-img create -o backing_file base.img new.img 10G
>
Hi Alberto,
what's the purpose of specif
Hello,
you have to call 'set_link off' wher is the identifier of the
virtual adapter
you got from 'info network'.
Regards
Steffen
>>> Vincenzo Romano schrieb am Mittwoch, 25.
>>> Januar
2017 um 10:23:
> I'd like to know how to virtually disconnect and connect the ethernet
> cable on a VM
Hi Steffen!
Thanks for the info.
Is there a way to start a VM with the cable disconnected?
--
Vincenzo Romano - NotOrAnd.IT
Information Technologies
--
NON QVIETIS MARIBVS NAVTA PERITVS
2017-01-25 11:55 GMT+01:00 Steffen Weißgerber :
> Hello,
>
> you have to call 'set_link off' wher is the ide
>>> Vincenzo Romano schrieb am Mittwoch,
25. Januar
2017 um 12:03:
> Hi Steffen!
> Thanks for the info.
> Is there a way to start a VM with the cable disconnected?
Seems to be similar to setting the password for the console. This is
(as long as I know)
also not possible to configure via start
I don't see any similarity to the console password "issue".
While it's wise to avoid a password on a command line (you could read
with ps), it's rather weird you cannot unplug a network cable from an
"unstarted" VM.
Simply, it seems this "feature" (you can find in virtualbox, for
example) has not b
El 25/01/17 a les 09:49, Alberto Garcia ha escrit:
> On Mon, Jan 23, 2017 at 01:00:26AM +0100, Joe wrote:
>
>> I'm trying Qemu (2.8.0) on Slackware GNU Linux 14.2 (64-bit) host.
>> I've a Windows XP (guest) raw image which was working with Qemu
>> times ago (I used it on an older Slackware version
On Wed, 01/25 12:38, Vincenzo Romano wrote:
> I don't see any similarity to the console password "issue".
> While it's wise to avoid a password on a command line (you could read
> with ps), it's rather weird you cannot unplug a network cable from an
> "unstarted" VM.
> Simply, it seems this "featur
On Wed, 01/25 12:43, Narcis Garcia wrote:
> El 25/01/17 a les 09:49, Alberto Garcia ha escrit:
> > On Mon, Jan 23, 2017 at 01:00:26AM +0100, Joe wrote:
> >
> >> I'm trying Qemu (2.8.0) on Slackware GNU Linux 14.2 (64-bit) host.
> >> I've a Windows XP (guest) raw image which was working with Qemu
>
Fam,
despite it makes sense, your suggestion looks a lot like a workaround
to a missing feature.
--
Vincenzo Romano - NotOrAnd.IT
Information Technologies
--
NON QVIETIS MARIBVS NAVTA PERITVS
2017-01-25 12:49 GMT+01:00 Fam Zheng :
> On Wed, 01/25 12:38, Vincenzo Romano wrote:
>> I don't see any
I filed a bug:
https://bugs.launchpad.net/bugs/1659267
--
Vincenzo Romano - NotOrAnd.IT
Information Technologies
--
NON QVIETIS MARIBVS NAVTA PERITVS
2017-01-25 12:52 GMT+01:00 Vincenzo Romano :
> Fam,
> despite it makes sense, your suggestion looks a lot like a workaround
> to a missing featur
On Wed, Jan 25, 2017 at 11:23:01AM +0100, Gianni Costanzi wrote:
> what's the purpose of specifying the size when you're creating an
> image with a backing file? Is it simply ignored?
The (virtual) sizes of the new image and the backing image can be
different. If you don't specify anything then t
Sure. You're right. I meant it from the end user point of view only.
Regards
Steffen
>>> Vincenzo Romano schrieb am Mittwoch,
25. Januar
2017 um 12:38:
> I don't see any similarity to the console password "issue".
> While it's wise to avoid a password on a command line (you could
read
> with p
On Wed, Jan 25, 2017 at 9:49 AM, Alberto Garcia wrote:
>
> If it worked with an earlier version and now you find that the guest
> is detecting new hardware, try forcing the emulation of a machine from
> an older version of QEMU.
>
> For example:
>
> qemu-system-i386 -M pc-i440fx-1.6 -m 2G ...
>
>
On Wed, Jan 25, 2017 at 03:43:23PM +0100, Joe wrote:
> > If it worked with an earlier version and now you find that the
> > guest is detecting new hardware, try forcing the emulation of a
> > machine from an older version of QEMU.
> >
> > For example:
> >
> > qemu-system-i386 -M pc-i440fx-1.6 -m 2
On Wed, Jan 25, 2017 at 1:34 PM, Alberto Garcia wrote:
> On Wed, Jan 25, 2017 at 11:23:01AM +0100, Gianni Costanzi wrote:
>
> > what's the purpose of specifying the size when you're creating an
> > image with a backing file? Is it simply ignored?
>
> The (virtual) sizes of the new image and the b
On Wed, Jan 25, 2017 at 04:16:22PM +0100, Gianni Costanzi wrote:
> > > what's the purpose of specifying the size when you're creating
> > > an image with a backing file? Is it simply ignored?
> >
> > The (virtual) sizes of the new image and the backing image can be
> > different. If you don't spec
On Wed, Jan 25, 2017 at 5:01 PM, Alberto Garcia wrote:
> On Wed, Jan 25, 2017 at 04:16:22PM +0100, Gianni Costanzi wrote:
>
> > > > what's the purpose of specifying the size when you're creating
> > > > an image with a backing file? Is it simply ignored?
> > >
> > > The (virtual) sizes of the new
El 25/01/17 a les 12:53, Fam Zheng ha escrit:
> On Wed, 01/25 12:43, Narcis Garcia wrote:
>> El 25/01/17 a les 09:49, Alberto Garcia ha escrit:
>>> On Mon, Jan 23, 2017 at 01:00:26AM +0100, Joe wrote:
>>>
I'm trying Qemu (2.8.0) on Slackware GNU Linux 14.2 (64-bit) host.
I've a Windows XP
Dear All,
I am working on a project where I need to translate qemu-guest physical
addresses to host virtual/physical addresses.
I am using VMI (virtual machine introspection) to introspect into the qemu
process (the KVM VM) and to read guest physical addresses stored in virtio ring
buffer descr
On Wed, Jan 25, 2017 at 3:56 PM, Alberto Garcia wrote:
> On Wed, Jan 25, 2017 at 03:43:23PM +0100, Joe wrote:
>
>> > If it worked with an earlier version and now you find that the
>> > guest is detecting new hardware, try forcing the emulation of a
>> > machine from an older version of QEMU.
>> >
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