similar to: virsh attach makes qcow2 format disk to raw format

On 12/09/2013 09:03 PM, lyz_pro@163.com wrote: > Hi all > > I have a problem when I use `virsh attach` to attach a qcow2 disk to vm without argument --subdirver=qcow2 > and this makes the qcow2 disk become a raw format disk, and the data in this disk is missing in guest os > and also I have used guestmout to confirm this, the same result. The format of a file is important. By

Hi all I have a problem. Two days ago , I used kvm-img create a snapshot of an qcow2 format image. And today I apply the snapshot of this image. The question is can I recovery the image to the last point . I mean Undo this snapshot apply -------------- lyz_pro 2014-03-24

hello, I would only like to have guestmount in my toolkit to read-only vhd/vhdx images, so I try to compile libguestfs with a minimum of dependencies. I downloaded the 1.38-stable sources, installed the necessary dependencies and compiled them with the command : ./configure --disable-ocaml --disable-perl --disable-ruby --disable-haskell --disable-php --disable-erlang --disable-lua

Hi I have two node: hcg3, hcg4 which run glusterfs Also run libvirtd on each node. The problem cames when I use `virsh attach-device` to attach a glusterfs type disk . My device xml like: <disk type="network" device="disk"> <driver name="qemu" type="raw" cache="none"/> <source protocol="gluster"

> Everything looks fine apart from ups.beeper.status always shows enabled > even if the status bit fom the ups has changed state. Probably because the driver updates the beeper status only every 'pollfreq' (default 30) seconds, so it may have missed the change. > After more testing the indexes work as follows > > 0x0a = load.on / cancel.shutdown.stayoff /

Hello, I see there is an option with virsh attach-disk to set the cache to "none" for raw devices, but I can't find how to attach the disk with io=native (needed for performance reasons). The goal is to attach a disk online, directly with the proper performance settings. I know I can set this in virt-manager, but then I have to restart the VM to apply the change, so this is an

Hi The problem is after I successful live migrate a domain, the domain os become read-only. and when I use qemu-img to show the disk info at node which domain current running , the command return 'Permission denied'. BUT, I can use qemu-img show the disk info at the previous node. My Env: two node, all install libvirt + kvm . use glusterfs as shared storage. the libvirt/kvm version:

hi?all, when I use Java library to create volume ,specified format "qcow2"?but when I check it use qemu-img info ,it show format is "raw".? I think it a bug,can you fix it .. thanks very much. the java library version?0.4.8 libvirt version?0.9.8 -------------- next part -------------- An HTML attachment was scrubbed... URL:

hi,all the following are files of pool and volume. storage pool is based on logical(LVM) and iscsi,now I create volume specified the format to "qcow2" *pool.xml* <pool type='logical'> <name>pool_190</name> <source> <device path='/dev/disk/by-path/ip-192.168.0.190:3260-iscsi-iqn.2012-11.com.cloudking:server.target1-lun-1'/>

Hi, I want to know how the xen 4.1.2 source code read an qcow2/raw image that is used as a vdi.However I just know i should read some source code about the blktap and tapdisk.and don''t know where to begin. I need your help. hxk _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users

Hi everyone I have a problem when use libvirt and glusterfs. When I use libvirt to start a vm with glusterfs disk. the operation will block. after I `CTL + c` the 'virsh start domainxx' comand , I use `virsh list` will find the vm in a strange state, kind like follow: Id Name State ---------------------------------------------------- 20 vm10

Hi all, I am quite new to nut mail list and not good in English. My OS is Armbian 23.02.2 Jammy with linux 5.15.93-sunxi Hardware is Raspberry pi Nut version 2.7.4-14ubuntu Install via apt-get install UPS manufacturer : Kstar Model : micropower Cannot find the manufacturer on the HCL Kstar is a oem manufacturer. That OEM to many brand. Lsusb show : Bus 006 Device 004: ID 09d6:0001 KSTAR UPS

QCOW2 disk image gets corrupted when you try to install Service Pack 1 AFTER installing GPLPV drivers. This means, without the pv drivers, everything works fine. I tested both RAW and QCOW2 without GPLPV drivers and the installation has completed without any error, and the image (at least qcow2) has no errors too. How to reproduce: - Install Windows 7 32-bit guest - Check the image with

I have not found support in libvirt (nor virsh) for doing the equivalent of "qemu-img rebase ....". The use case: You have copied a qcow2 stack and the new files have different names or reside in a different directory. Therefore you need to change the backing file. Is there a way to do this? Is this a planned addition to libvirt? Harald -------------- next part

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, In most cases we use image files as virtual disks under the full-virtualization situation.On the version 4.1.2 of xen,I do the following command: ############################################################ dd if=/dev/zero of=myraw.img bs=1M seek=8K count=1 #Before the command below I install the operating system in myraw.img qemu-img-xen create -b myraw.img -f qcow2 myqcow1.img 20000M

When creating qcow2 images using virt-builder, is there a way to specify the qcow2 preallocation, as possible with qemu-img create -o preallocation=metada , for example? TIA, Y.

Hi! I need to convert a KVM virtual machine from LVM to a qcow2 image, and wonder if this is the best way to do it (*1): [$] qemu-img convert -O qcow2 /dev/vg_name/lv_name/ /var/lib/libvirt/images/image_name.qcow2 If this is the best way to do this, will this keep the information on: /dev/vg_name/lv_name/ untouched? Thanks, and please point me towards another mailing list if this it not right

1. What are you trying to do? I'm trying to mount qcow2 using guestfish -remote, modify the qcow2 and reuse the modified qcow2. 1. What exact command(s) did you run? I have attached code.txt 1. What was the precise error or output of these commands? While remounting the qcow2 I'm not able to see the modifications I have made to the qcow2 during initial mounting. May I know

[Adding libguestfs mailing list] On Sun, Oct 14, 2018 at 11:53:17AM -0400, Raghuram Devarakonda wrote: > Hi, > > My name is Raghuram Devarakonda and I am a big fan of "nbdkit". I have > successfully used it to prototype (using Python plugin) a complex > project in our company and since then, I have also been trying to > understand and learn "guestfs-tools"