similar to: virsh attach-disk live guest problem

Greetings, list! I hope you forgive cross-posting - I only now found this list. I am in the process of configuring a KVM stack of about 8 vms. Mostly I am concerned about performance, as there will be a lot of I/O. My last problem is this: I try to add a fresh, unformatted disk partition to a KVM guest. I follow the directions given here:

Hi, Please let me know in case I am posting my question to the wrong forum. I apologize if that is the case! Here is my question: We run CentOS 6.3 on a server with dual Xeon CPU's. Our "dual blade" server uses this motherboard: http://www.supermicro.com/products/motherboard/Xeon/C600/X9DRT-HF.cfm We have two of these CPUs installed and working: Intel(R) Xeon(R) CPU E5-2620 0 @

Hi, I am having 2 issues with disks and KVM. ISSUE 1: I am unable to detach a disk from a running KVM. (root at h2)-(/tmp)# virsh dumpxml vps_99 <domain type='kvm' id='224'> <name>vps_99</name> <uuid>5e24e17c-f0e4-1030-ac57-0050560018a2</uuid> <memory>524288</memory> <currentMemory>524288</currentMemory>

Hello, I have to use attach-disk function for providing additional storage to the guest domain but i couldn't found proper documentation anywhere which i can follow. ---- For linux (Ubuntu 11.10 server edition, 64bit) guest i tried qemu-img create -f qcow2 disk.qcow2 size virsh attach-disk guest_name --driver file disk.qcow2 sdc Both of the above commands are working fine but when i try to

Thank you for your help! 1, i used vda as install disk and vdb as target disk, because i boot from the first. After setup boot order flag i was able change install disk to vdb and target disk to vda. With this configuration when i boot from vdb i can install OS with grub and after it redefine XML without vdb without problem. Thanks a lot. 2, maybe i have something wrong, but still not working:

On 8/2/19 6:26 PM, Jan Horak wrote: > Thank you for your help! > > 1, i used vda as install disk and vdb as target disk, because i boot from the first. After setup boot order flag i was able change install disk to vdb and target disk to vda. With this configuration when i boot from vdb i can install OS with grub and after it redefine XML without vdb without problem. Thanks a lot. >

Hi , Trying to attach a disk to existing VM using virsh attach-device - XML <disk type='file' device='disk'> <driver name='qemu' type='qcow2' cache='none' io='native'/> <source file='/var/lib/libvirt/images/guest.qcow2'/> <target dev='vdc' bus='virtio'/> </disk> After

Hi, When i use "virsh attach-device rhel disk.xml" when the guest is booting,then i can't find the disk in the guest after booting.But i can find it by "virsh domblklist rhel",and when i want to detach it from the guest and use "virsh detach-disk rhel vdb", i still can find the disk by "virsh domblklist rhel" The disk.xml is like: <disk

I have a very strange issue that has plagued our KVM-based hypervisor infrastructure. Environment: - All EL7-based libvirt releases since EL7.0 - Fully patched EL7-based KVM guest on a fully patched EL7-based KVM host. - Secondary disk attached via 'virsh attach-device guest /vm/guest-with-secondary-disk-01/disk2.xml --persistent' (note --persistent flag here) Problem Description: -

I try to add a fresh, unformatted disk partition to a KVM guest. I follow the directions given here: http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5/html-single/Virtualization/index.html#proc-Virtualization-Adding_storage_devices_to_guests-Adding_physical_block_devices_to_virtualized_guests First I check that the module acpiphp is present on the guest. It is. On the host I write:

Hi, I'm trying to create a snapshot on a specific disk by using diskspec option. However, libvirt/virsh seems to ignore it and takes a snapshot of all disks. Am I using this option incorrectly? In below examples, I'm trying to snapshot only vdb. However even vda is getting snapshotted regardless of diskspec. Is this a known issue? I'm on CentOS 7.1, libvirtd (libvirt) 1.2.8, virsh

Hi, I have a KVM host running ubuntu 18.04 with libguestfs-tools version 1.36.13-1ubuntu3.3 installed from the Ubuntu's repo and when I try to use virt-cat for example on a VM it fails with: libguestfs: error: appliance closed the connection unexpectedly. > libguestfs: error: guestfs_launch failed. After doing "export LIBGUESTFS_DEBUG=1 LIBGUESTFS_TRACE=1" and running the

Hi all! Doing some tests with CentOS 5.5 on a KVM virtual machine, after doing the installation, I added a second disk. But when trying to boot from it, I get the following error: --------------------------------------------------------------------- root (hd1,0) Error 21: Selected disk does not exist --------------------------------------------------------------------- The two disks are

I posted this problem on IRC yesterday. Here are some logs. Recap on the problem: When I do inspect_os() (from the python api) or invoke virt-inspector, I get this error: libguestfs: error: internal_parse_mountable: internal_parse_mountable_stub: /dev/vg_nestedctos1/lv_root: No such file or directory I don't have this problem when I invoke it using the OS supplied binaries (version 1.14.8).

Hello everyone, I have a corrupt .vdi file from a virtualbox installation (XP host, Mint 11 guest) which I recently broke. I wanted to allocate more space to it, so I ran this command:VBoxManage.exe modifyhd /path/to/YOUR_HARD_DISK.vdi --resize 17179869184 It only took a second to actually complete, so I think a header somewhere is broken. I need to get access to some files I had on there using

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi all! Doing some tests with CentOS 5.5 on a KVM virtual machine, after doing the installation, I added a second disk. But when trying to boot from it, I get the following error: - --------------------------------------------------------------------- root (hd1,0) Error 21: Selected disk does not exist -

> On 23 Dec 2014, at 12:59, Ian Campbell <ijc at debian.org> wrote: > > Control: reassign -1 xen-utils-common 4.4.1-6 > Control: retitle -1 /etc/init.d/xen fails when run in a guest, causing postinst to fail. > > Seems like this issue is in the Xen packages not in the xen-linux-system > metapackage, so reassigning. > > On Mon, 2014-12-22 at 23:01 +0100, Sydney

On 05/22/2014 04:31 PM, Andrew Martin wrote: > Hello, > [Can you convince your mailer to wrap long lines?] > I am working on a script to automatically create live snapshots of > running VMs using qemu-kvm 1.4.0 and libvirt 1.0.2. If a VM has Any reason you aren't upgrading to newer versions? Although these seem sufficient for what you are trying. > multiple disks, I'd

On 08/07/2015 09:53 AM, Silver Sky Soft Services, Inc. wrote: > Hi, > I'm trying to create a snapshot on a specific disk by using diskspec > option. However, libvirt/virsh seems to ignore it and takes a snapshot of > all disks. Am I using this option incorrectly? > > In below examples, I'm trying to snapshot only vdb. However even vda is > getting snapshotted

Hi, I have a virtual machine which fails to boot linux-4.1.8 while mounting file systems: > * Mounting local filesystem ... > ------------[ cut here ]------------ > kernel BUG at drivers/block/virtio_blk.c:172! > invalid opcode: 000 [#1] SMP > Modules linked in: pcspkr psmouse dm_log_userspace virtio_net e1000 fuse nfs lockd grace sunrpc fscache dm_snapshot dm_bufio dm_mirror