Displaying 20 results from an estimated 8000 matches similar to: "qcow support"
2007 Mar 13
0
xm block-attach and qcow image - why does it fail ? second try
Hello,
This is a second post, with a trial which is different
from the first one , in order to solve my
blcok-attach problem.
I tried the following two actions, according to the
blktap readme:
qcow-create 1000 qcowFile.img
Creating file size 1048576000
Created cksum: 1813725440
then
xm block-attach 0 tap:qcow:qcowFile.img /dev/xvda1 w 0
I see in the /var/log/xen/xend.log:
[2007-03-13
2007 Apr 13
0
qcow-create buffer overflow?
For many months now we have been trying to create a file-backed qcow
image with the qcow-create code. Each time we try to back a file with a
qcow, it screams:
*** buffer overflow detected ***: qcow-create terminated
Below is the output from two different attempts and information about
qcow-create. Any ideas/thoughts/help you can offer?
Thank you for your help!
-Eric
[root@trogdor ~]#
2008 Nov 17
0
QCOW snapshots and recursive file backings
Hi,
Trying to understand the current state of affairs with QCOW support in
Xen with the blktap driver. It''s been made clear that a deviation
from QEMU''s implementation of QCOW has occurred and that the QCOW
files used in Xen must be created with the associated Xen tools only
(e.g. qcow-create) and that images between QEMU and Xen are not
interchangeable.
My first question is
2010 Jul 22
1
HVM domain can not boot up with Qcow incremental image
Dear,Beg for your help. I am really puzzled with this problem.HVM domain can not boot up with Qcow incremental image(using command: qcow-create size incremental_file original_Qcow_img_file), but it can boot up with the original Qcow disk image file. When using Qcow incremental image, the guest qemu window would disappear before loading grub, and `xm list` can not find this guest domain.The VM
2013 Aug 07
0
Qcow files
I have a qcow file
It shows correct size on one server
Fdisk -l w.qcow
70 GB
On the other server
Fdisk w.qcow
0 MB
stupid
2009 Feb 25
3
HVM Linux DomU doesn''t start
Hi all,
we are running two servers with Ubuntu 8.04 LTS Server with Xen 3.2 and two
dual-core CPUs:
processor : {0-3}
vendor_id : AuthenticAMD
cpu family : 15
model : 65
model name : Dual-Core AMD Opteron(tm) Processor 2218 HE
stepping : 3
cpu MHz : 2613.394
cache size : 1024 KB
physical id : 0
siblings : 1
core id : 0
cpu cores : 1
fpu :
2018 Dec 08
1
import qcow with snapshots
All,
is it possible to create a new KVM machine from an existing qcow (v3)
image with snapshots? snapshot-list doesn't show them, when using
virt-manager 1:1.5.1-0ubuntu1.1 to create the machine.
* t-ad5.img: QEMU QCOW Image (v3), 42949672960 bytes
chris@cd:/data/md0$ qemu-img snapshot -l t-ad5.img
Snapshot list:
ID TAG VM SIZE DATE VM CLOCK
1
2012 Dec 19
3
!!!!!help!I wouldn't be able to meet the deadline!(qcow format image file read operation in qemu-img-xen)[updated]
Hi,guys,
During a HVM''s running which take a qcow format image file as its own virtual disk, the qcow image file will be always read.In the situation that its qcow format image is based on a raw format image, if nesethe backingfile ,just that raw format image file,would be read .my purpose is to cache the data that is read from the backingfile when the hvm is running .
Now what I concern
2019 Aug 14
0
Re: Recover snapshots from qcow images
On Tue, Aug 13, 2019 at 15:15:11 +0200, Petr Stodulka wrote:
> Hi guys,
> I had to move to the new laptop week ago and I screw migration of my virtual
> machines. I recovered my virtual machines on the new laptop (virsh define)
> using the backed up xml files, but I am missing any file with metadata about
> snapshots. The original storage is cleaned so I cannot take these files
>
2011 Jun 13
3
blktapctrl not running
Hi,
I am running XEN 4.1 on Debian 6 and I cannot find blktapctrl process
running. xend is started. I installed XEN from 4.1 source following
instructions here:
http://wiki.xensource.com/xenwiki/XenParavirtOps
http://wiki.xensource.com/xenwiki/Xen4.0
Should there be a blktapctrl process running in this version?
The problem I have encountered is that I can create a domain on a raw disk
image but
2008 Jul 16
2
QCOW - good choice?
Hi,
I want to ask if anyone of you is familiar with QCOW and has used this
with xen?
I''ve googled a bit about and could''nt really find out if it''s a good
choice or not.
Has anyone experience with usage in xen and can say something about
performance
and snapshot usability?
Thanks in advance,
Alex
_______________________________________________
Xen-users mailing
2009 Nov 10
0
QCOW in RAMDISK on Xen
I have been messing with QCOW on Xen and I''ve come to the conclusion that
nobody actually uses it otherwise it would work. Has anyone gotten QCOW2 and
Xen to work reliably?
I have 40 PV VMs that are identical (initially) and would like to move from
separate disk images to one base image sitting in a ramdisk and the COW
images hosted on an iSCSI storage device. The VMs would boot off the
2011 Oct 17
0
xl fail to create PV guest with qcow/qcow2 disk images
I''m trying to create a pv guest with qcow/qcow2 disk image by xl, it always fails atlibxl_device_disk_local_attach.
#xl create pv_config_file
libxl: error: libxl.c:1119:libxl_device_disk_local_attach: cannot locally attach a qdisk image if the format is not raw
libxl: error: libxl_create.c:467:do_domain_create: failed to run bootloader: -3
Does that mean we cannot create such a pv guest
2012 Jan 11
0
Questions about mounting tap:qcow images in Xen 4.1.1/Ubuntu 11.10 dom0
Hello xen-users,
I am trying to access a guest disk that was created using qcow-create from dom0 using xl block-attach/block-detach, which appears to be the current "Xen way" of doing it. However, after the following command, no /dev/xvdb is appearing:
$ xl block-attach 0 tap:qcow2:/home/root/images/test.img xvdb
I am using Xen 4.1.2 (installed from source tarball) with an Ubuntu
2008 Jul 13
0
qcow disk performance not exceeding 3.0MB/s
I am using a sparse image with a backed file. Using a dd inside domU the
performance doesn''t exceed 3.0MB/s. If I try this on an NFS mount the
performance (in an uninitialized qcow image) is below 1.0MB/s.
Is this as expected? Are there currently any improvements in the Xen 3.3
hg repo that increase speed in the blktap backend?
Stefan
_______________________________________________
2006 Dec 21
0
QCow file images
I''ve a problem with the syntax of qcow images on HVM guest.
In my configuration file i''ve this string
disk = [''tap:aio:/mnt/qcowwin,hda1,w'']
Is it correct??? Windows installation cannot find the harddisk to
proceed os installation...
_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
2019 Aug 13
2
Recover snapshots from qcow images
Hi guys,
I had to move to the new laptop week ago and I screw migration of my virtual
machines. I recovered my virtual machines on the new laptop (virsh define)
using the backed up xml files, but I am missing any file with metadata about
snapshots. The original storage is cleaned so I cannot take these files
anymore.
Using qemu-info I can see my snapshots inside the qcow images, but libvirt
2008 Sep 10
2
Bug#490409: xen-3: diff for NMU version 3.2.1-2.1
tags 490409 + patch
thanks
Hi,
The following is the diff for my xen-3 3.2.1-2.1 NMU.
It incorporates three patches from upstream and aims to
fix CVE-2008-2004 aka #490409.
It is not yet tested much, I would appreciate if interested
parties could give it a try.
I'll upload in due course.
Kind regards
T.
diff -u xen-3-3.2.1/debian/control.md5sum xen-3-3.2.1/debian/control.md5sum
---
2017 Sep 28
1
upgrade to 3.12.1 from 3.10: df returns wrong numbers
Hi,
When I upgraded my cluster, df started returning some odd numbers for my
legacy volumes.
Newly created volumes after the upgrade, df works just fine.
I have been researching since Monday and have not found any reference to
this symptom.
"vm-images" is the old legacy volume, "test" is the new one.
[root at st-srv-03 ~]# (df -h|grep bricks;ssh st-srv-02 'df -h|grep
2011 Oct 14
21
xl create PV guest with qcow/qcow2 disk images fail
Hi, List,
I''m trying xl create a pv guest with qcow/qcow2 image, it always fails at libxl_device_disk_local_attach.
#xl create pv_config_file
libxl: error: libxl.c:1119:libxl_device_disk_local_attach: cannot locally attach a qdisk image if the format is not raw
libxl: error: libxl_create.c:467:do_domain_create: failed to run bootloader: -3
disk configuration is:
disk=[