similar to: Is thread-safe for pread_device in python?

I know there's lots of functions that can access/modify the internal fs of img or qcow2 through libguestfs. I want to know is there any library can modify the raw/qcow2 image directly in Python? For example, there's function called read_qcow2(), and I can know the content of tmp.qcow2 through the function read_qcow2().

I found guestfs_compress_out do the compression to gzip, bzip2, compress...etc. I want to compress qcow2, and I found details about qcow2 compression in https://people.gnome.org/~markmc/qcow-image-format.html The QCOW format supports compression by allowing each cluster to be > independently compressed with zlib. Can I do that with guestfs_compress_out?

Hi, I scribbled a simple guestfs based program called guestfs-xfer with following synopsis: Usage: guest-xfer [options] [op] [diskimage] op = [ls|cat|write] options: -d, --guestdevice DEV guest device --blocksize BS blocksize [default: 1048576] -o, --offset OFF offset [default: 0] So eg. `cat /dev/urandom | guest-xfer -d /dev/sda

I fixed the deadlock - turned out to be an actual bug in the nbd plugin (see patch 8). I changed the command syntax so it's now: nbdkit nbd command=qemu arg=-f arg=qcow2 arg=/path/to/disk.qcow2 Nir wrote: 18:08 < nsoffer> rwmjones: regarding the nbd proxy patches, did you have specific flow that help us? 18:08 < nsoffer> rwmjones: or this is just a way to support qcow2 in the

I followed the examples 1 and 2 in http://libguestfs.org/guestfs-python.3.html I create disk img by example 1 and use example 2 to inspect the img. I got error in the line: > g.inspect_os() : no operating systems found. how could fix it? any examples to create os in python?

>From IRC channel: <StenaviN> Can someone confirm cat/test-virt-tail.sh works in 'master'? <StenaviN> I get https://pastebin.com/GBkg7Vtw <rwmjones> StenaviN: yes it works for me; the error is not very helpful, you'll need to set LIBGUESTFS_DEBUG=1 LIBGUESTFS_TRACE=1 <StenaviN> https://pastebin.com/yABgCHwV <rwmjones> I think the error is:

On Wednesday, 12 July 2017 10:45:35 CEST 陳培泓 wrote: > I know there's lots of functions that can access/modify the internal fs of > img or qcow2 through libguestfs. > > I want to know is there any library can modify the raw/qcow2 image directly > in Python? > > For example, there's function called read_qcow2(), and I can know the > content of tmp.qcow2 through the

This still isn't working at the moment. See: http://marc.info/?t=139457409300003&r=1&w=2 This set of patches: - Adds new APIs to support discard in libguestfs. - Adds discard support to virt-format. - Adds discard support to virt-sysprep. - Implements virt-sparsify --in-place. Rich.

On 04/26/2016 09:35 AM, Shahar Havivi wrote: > On 26.04.16 15:30, Shahar Havivi wrote: >> On 26.04.16 14:14, Shahar Havivi wrote: >>> On 25.04.16 09:11, Cole Robinson wrote: >>>> On 04/25/2016 08:10 AM, Shahar Havivi wrote: >>>>> On 17.04.16 15:41, Shahar Havivi wrote: >>>>>> Hi, >>>>>> The following snippet works

On Wed, Feb 19, 2020 at 03:00:11PM +0100, Csaba Henk wrote: > Hi, > > I scribbled a simple guestfs based program called guestfs-xfer with > following synopsis: > > Usage: guest-xfer [options] [op] [diskimage] > > op = [ls|cat|write] > > options: > -d, --guestdevice DEV guest device > --blocksize BS blocksize [default:

This patch is easier to read if you use the 'git show -w' option. Also observe that: fun a -> ( fun () -> (* code *) ) (ie. returning a closure) is identical to: fun a () -> (* code *) Rich.

Hi, currently i'm following https://wiki.libvirt.org/page/Live-disk-backup-with-active-blockcommit. I 'm playing around with it and it seems to be quite nice. What i want is a daily consistent backup of my image file of the guest. I have the idea of the following procedure: - Shutdown the guest (i can live with a downtime of a few minutes, it will happen in the night). And i think

One day I'm going to run a virt-p2v that works to completion. But evidently not today. The source physical machine is Windows 2003. This one copied the whole system drive and then died at the end and deleted the virtual disk it made. Here is the top and bottom of the trace log file on the conversion server. If the email garbles what I'm pasting in below, I can email the log as an

Hi all, v2 includes all comments from Pino and Richard. I also removed the mkdir /run/lvm in the init since it only failed in one case and couldn't reproduce it anymore. Cédric Bosdonnat (11): v2v: also search for windows virtio drivers in symlinks Update packagelist for SLES and openSUSE customize: fix windows firstboot script customize: change windows firstboot path customize:

This is mainly for testing the new parallel python threading model, but it also an example how to manage multiple connection from a plugin. I tested this with local imageio server, serving qcow2 image on local SSD. Start imageio server from imageio source: ./ovirt-imageio -c test Create test disk: qemu-img create -f qcow2 /var/tmp/disk.qcow2 6g Add ticket to accessing the image,

Previously posted in 2015: v1: https://www.redhat.com/archives/libguestfs/2015-June/msg00048.html v2: https://www.redhat.com/archives/libguestfs/2015-June/msg00118.html This series was posted about 4 weeks ago: v3: https://www.redhat.com/archives/libguestfs/2017-June/msg00287.html There is no change in this series except I rebased it against current upstream head and retested. Last time there

On 04/27/2016 04:26 AM, Daniel P. Berrange wrote: > On Tue, Apr 26, 2016 at 03:17:19PM -0400, Cole Robinson wrote: >> On 04/26/2016 02:56 PM, Nir Soffer wrote: >>> On Tue, Apr 26, 2016 at 4:37 PM, Cole Robinson <crobinso@redhat.com> wrote: >>>> On 04/26/2016 09:35 AM, Shahar Havivi wrote: >>>>> On 26.04.16 15:30, Shahar Havivi wrote:

On Sun, Mar 20, 2016 at 05:28:05PM +0200, Török Edwin wrote: > On 03/20/2016 14:30, Richard W.M. Jones wrote: > > v1 was here: > > > > https://www.redhat.com/archives/libguestfs/2016-March/thread.html#00157 > > Thanks, this is much better than looking at 'ts -i' output. > > BTW I have use 'git am' to apply them to latest git HEAD and try it.

This set of patches: - Adds new APIs to support discard in libguestfs. - Adds discard support to virt-format. - Adds discard support to virt-sysprep. - Implements virt-sparsify --in-place. This is now working, after fixing the rather stupid bug in fstrim. I've pushed the ones which were ACKed previously + the fstrim fix. Rich.

We?ve been seeing this a lot lately on generic CentOS 6 rpm installs: rpm -qa | grep libguestfs libguestfs-java-1.16.19-1.el6.x86_64 libguestfs-java-devel-1.16.19-1.el6.x86_64 libguestfs-1.16.19-1.el6.x86_64 libguestfs-tools-1.16.19-1.el6.x86_64 libguestfs-javadoc-1.16.19-1.el6.x86_64 libguestfs-devel-1.16.19-1.el6.x86_64 libguestfs-tools-c-1.16.19-1.el6.x86_64