[libvirt-users] Fwd: Unattended guest installation fails
by ChandraShekar Shastri
Hi,
I am following the below link to install a Fedora19 guest on Fedora19 Host.
http://kashyapc.com/2011/08/18/unattended-guest-install-with-a-local-kick...
Version :
libvirtd (libvirt) 1.0.5.1,
QEMU emulator version 1.4.2, Copyright (c) 2003-2008 Fabrice Bellard
I have the iso which I loop mounted and created a http repo using python
module "python -m SimpleHTTPServer". This repo is properly accessible and
the guest is able to pull the initrd.img and vmlinuz but further it fails.
Please find the attached xml and console messages and let me know how to
proceed further.
Thanks,
Chandrashekar
9 years, 5 months
[libvirt-users] libvirt unprivileged user and containers
by Vasiliy Tolstov
Hello. I need to create container on remote host that runs libvirt.
Does it possible to download container image, extract it and run via libvirt?
As i see in all cases libvirt need prepared dir with root file system,
but in my case i'm not able to unpack archive on remote side because
it need root privileges.
How can i solve my problem?
--
Vasiliy Tolstov,
e-mail: v.tolstov(a)selfip.ru
jabber: vase(a)selfip.ru
9 years, 5 months
[libvirt-users] live migration
by Thomas Stein
Hola.
Just tried a live migration after fixing the pc-q35-2.1 error. Now i
have new problem. It seems during live migration only the ram gets
migrated. I use the following command.
# virsh migrate --live domain qemu+ssh://newhost/system
--copy-storage-all --verbose --persistent
It works without problems. Apart from beeing way to fast.
# virsh migrate --live domain qemu+ssh://newhost/system
--copy-storage-all --verbose --persistent
Migration: [100 %]
On the destination i can enter the VM but thats it. There is no
filesystem and so on.
Did the migration syntax change?
I use libvirt 1.2.12 and qemu 2.2.0. Thanks for any hints.
best regards
9 years, 5 months
[libvirt-users] libvirt 1.2.12 + xen 4.4 wont migrate
by albie
Hi,
We have been trying to get live migration working between two xen boxes
running libvirt 1.2.12, However i seem to be getting the following error
root@libvirt-xen1:~# virsh migrate --live trusty-image
qemu+ssh://192.168.13.9/system --copy-storage-all --verbose --persistent
--undefinesource
root(a)192.168.13.9's password:
error: unsupported flags (0x48) in function libxlDomainMigrateBegin3Params
root@libvirt-xen1:~# virsh migrate --live trusty-image
xen+ssh://192.168.13.9/system --copy-storage-all --verbose --persistent
--undefinesource
root(a)192.168.13.9's password:
error: unsupported flags (0x48) in function libxlDomainMigrateBegin3Params
Any ideas as to why this might be happening ?
Regards,
Albie Thomson
9 years, 5 months
[libvirt-users] HugePages - can't start guest that requires them
by G. Richard Bellamy
Hello All,
I'm trying to enable hugepages, I've turned off THP (Transparent Huge
Pages), and enabled hugepages in memoryBacking, and set my 2MB
hugepages count via sysctl.
I'm getting "libvirtd[5788]: Failed to autostart VM 'atlas': internal
error: Unable to find any usable hugetlbfs mount for 16777216 KiB"
where atlas is one of my guests and 16777216 KiB is the amount of
memory I'm trying to give to the guest.
Yes, i can see the hugepages via numastat -m and hugetlbfs is mounted
via /dev/hugepages and there is a dir structure
/dev/hugepages/libvirt/qemu (it's empty).
HugePages is big enough to accommodate the 16G i'm allocating... and
changing the perms on that directory structure to 777 doesn't work
either.
Any help is much appreciated.
HOST: http://sprunge.us/SEdc
GUEST: http://sprunge.us/VCYB
Regards,
Richard
9 years, 5 months
[libvirt-users] Broken OS when booting rootfs from 9p share
by Olivier Mauras
Hello,
I've been trying to boot a VM with the rootfs being a 9P
share from the host. The VM OS is centos 7.
The OS boots but no services
can work and it appears that the authentication system is broken.
Now
the funny thing is that booting the same OS on the same 9P share
manually with Qemu works as expected with a fully functionnal OS... So
I'm wondering what could libvirt do that render the OS on the share
broken - Something with rights ?
Selinux is disabled on the host, and
accessmode to the share is set to passthrough in both cases.
Here's my
working Qemu line:
qemu -kernel
/srv/overlay/kernels/grsec-3.14.33-101/vmlinuz-3.14.33-101.el6.x86_64
-initrd
/srv/overlay/kernels/grsec-3.14.33-101/initramfs-3.14.33-101.el6.x86_64.img
-fsdev
local,id=r,path=/srv/overlay/run/irc,security_model=passthrough
-device virtio-9p-pci,fsdev=r,mount_tag=root
-nographic
-m 256M
-machine pc-i440fx-2.1,accel=kvm
-netdev tap,id=net0 -device
virtio-net,netdev=net0,mac=52:54:00:12:36:34
-smp 1,sockets=1,cores=1
-append 'root=virtfs:root rootflags=trans=virtio,version=9p2000.u ro
rootfstype=9p console=ttyS0'
And here my libvirt VM config:
<domain
type='kvm'>
<name>irc</name>
<uuid>ffbd32eb-a693-eadd-8923-18de80137472</uuid>
<memory
unit='KiB'>262144</memory>
<currentMemory
unit='KiB'>262144</currentMemory>
<vcpu placement='static'>1</vcpu>
<os>
<type arch='x86_64' machine='pc-i440fx-2.1'>hvm</type>
<kernel>/srv/overlay/kernels/grsec-3.14.33-101/vmlinuz-3.14.33-101.el6.x86_64</kernel>
<initrd>/srv/overlay/kernels/grsec-3.14.33-101/initramfs-3.14.33-101.el6.x86_64.img</initrd>
<cmdline>root=virtfs:root rootflags=trans=virtio,version=9p2000.u ro
rootfstype=9p</cmdline>
<boot dev='hd'/>
</os>
<features>
<acpi/>
<apic/>
<pae/>
</features>
<clock offset='utc'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>restart</on_crash>
<devices>
<emulator>/usr/bin/qemu-system-x86_64</emulator>
<controller type='usb'
index='0'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x01'
function='0x2'/>
</controller>
<controller type='pci' index='0'
model='pci-root'/>
<filesystem type='mount' accessmode='passthrough'>
<source dir='/srv/overlay/run/irc'/>
<target dir='root'/>
<address
type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
</filesystem>
<interface type='bridge'>
<mac
address='52:54:00:00:36:34'/>
<source bridge='br0'/>
<model
type='virtio'/>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x03' function='0x0'/>
</interface>
<serial type='pty'>
<target
port='0'/>
</serial>
<console type='pty'>
<target type='serial'
port='0'/>
</console>
<input type='mouse' bus='ps2'/>
<input
type='keyboard' bus='ps2'/>
<graphics type='vnc' port='-1'
autoport='yes'/>
<video>
<model type='cirrus' vram='9216' heads='1'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x02'
function='0x0'/>
</video>
<memballoon model='virtio'>
<address
type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
</memballoon>
</devices>
</domain>
My libvirt version is 1.2.9, and
qemu is 2.1.2.
Thanks for your help,
Olivier
9 years, 5 months
[libvirt-users] virtio nic dosent use 10gbe speed.
by Kalil de A. Carvalho
Hello all.
We are moving from Xenserver 6.5 environment to KVM because we can't use
10gbe speed in our VM's so we decided to test KVM.
To inicial test I've create script, using qemu commands, to build two VM's
and test the nic speed.
Each VM has one nic, using virtio, into it own bridge. In this bridge we
associate one 10gbe physical nic.
They can communicate each other.
When we try do a copy, through SCP, the speed is 300mbps. And if we open
another copy this speed been the half.
What we are using:
S.O:
CentOS 7
Kernel 3.10.0-123.el7.x86_64
qemu-kvm.x86_64 10:1.5.3-60.el7
libvirt-daemon.x86_64 1.1.1-29.el7
Hardware:
Dell PowerEdge R720
16GB RAM
2TB SAS
Two Broadcom Corporation NetXtreme II BCM57810 10 Gigabit
Command to start VM's:
/usr/libexec/qemu-kvm -m 1024 -enable-kvm -k en-us -hda teste1.img -net
nic,model=virtio,macaddr=00:01:02:aa:bb:cc -net
tap,ifname=tap1,script=no,downscript=no -vnc :0
What Do I doing wrong?
Is my test right?
Is my interpretation right?
Is my enviroment correct?
Can I improve or fix any think with my libvirt or command arguments?
Best regards
--
Atenciosamente,
Kalil de A. Carvalho
9 years, 5 months
[libvirt-users] encryption
by Henry Noack
Hello you guys,
it is possible to decrypt a kvm volume only by using the command line
after starting it?
Best regards
Henry
9 years, 5 months
[libvirt-users] spice session locking
by Jon Doe
Hi List,
Is it possible to prevent other clients from stealing my libvirtd
hosted spice session? This is a problem for me where multiple
co-workers access the same guest over a qemu+ssh:// connection.
Instead of simply disconnecting clients, I'd like libvirtd to deny the
new client.
I've been looking at polkit acl rules and the vnc sharePolicy
attribute but so far no luck.
9 years, 5 months
[libvirt-users] libvirt live migration, qcow2 image, nbd server
by Edward Young
Hi all,
When I live migrate a vm using
"migrate --live --copy-storage-all mig-vm qemu+ssh://192.168.1.3/system
tcp://192.168.1.3"
I got the following error
WARNING: Image format was not specified for
'nbd://node2:49155/drive-virtio-disk0' and probing guessed raw.
258 Automatically detecting the format is dangerous for raw
images, write operations on block 0 will be restricted.
259 Specify the 'raw' format explicitly to remove the restrictions.
>From the error itself, I can tell that nbd server treat this image as raw,
rather than qcow2. My platform is libvirt+qemu. the image type of this vm
is indeed qcow2. I do not know how to let nbd know this image format.
Thanks!
Ed
9 years, 5 months
