Install a new guest remotely?

Install a new guest remotely?

[rek2]

Hello I am going crazy trying to figure out a way to do a fedora install 
on our kvm server... Ubuntu installs are easy I dont need X, but fedora 
is a pain I'm using virt-install but I need X installed, we do not 
install X on our servers at all, and will rather not to. So can I do 
this remotely from my linux desktop with X? if so
do I need to mount a partition on both the host and my desktop computer? 
I have try to do a remote install but keeps complaining about the 
storage place..
PS: any way to do a fedora12 install with out a stupid GUI?

Thanks
Chris F.

RE: Install a new guest remotely?

[Neil Aggarwal]

Hello:

> is a pain I'm using virt-install but I need X installed, we do not 
> install X on our servers at all, and will rather not to. So can I do 

Our KVM servers are remote and do not have X installed.

When we install a guest, we tell it to use vnc
by adding --vnc --noautoconsole to the virt-install
command.

Then use virsh vncdisplay to get the port on the server
to connect your VNC viewer.  We use an SSH tunnel
for the connection to ensure security.

	Neil

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Re: Install a new guest remotely?

[Daniel P. Berrange]

On Mon, Jan 11, 2010 at 10:20:02AM -0600, Neil Aggarwal wrote:
> Hello:
> 
> > is a pain I'm using virt-install but I need X installed, we do not 
> > install X on our servers at all, and will rather not to. So can I do 
> 
> Our KVM servers are remote and do not have X installed.
> 
> When we install a guest, we tell it to use vnc
> by adding --vnc --noautoconsole to the virt-install
> command.

Yep, that is the best way to run virt-install on a head-less machine

> Then use virsh vncdisplay to get the port on the server
> to connect your VNC viewer.  We use an SSH tunnel
> for the connection to ensure security.

You can also use  "virt-viewer"  to automate that bit of the process

  virt-viewer --connect qemu+ssh://root@servername/system GUESTNAME

and virt-viewer will connect to libvirt on the remote host, query the
VNC port and setup  an SSH tunnel for the VNC connection. It is 
essentially a VNC client that knows about libvirt. It can do TLS or
SASL security instead of SSH tunnels too if desired

Regards,
Daniel
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Re: Install a new guest remotely?

[rek2]

> Then use virsh vncdisplay to get the port on the server to
connect

> your VNC viewer.  We use an SSH tunnel for the connection to
ensure

> security.

>

> Neil

>

ok so I must to be doing something wrong..
here is my  line:
virt-install --connect qemu:///system -n fedora_core12 -r 1048576
--vcpus=2 -f /var/kvm_image
s_local/fedora_core12.qcow2 -s 20  -c ~/Fedora-12-x86_64-netinst.iso
--os-type linux  --acce
lerate --vnc --noautoconsole --network=bridge:br0 --hvm

then I get:


Starting install...
monitor socket did not show up.: Connection refused
Domain installation may not have been
 successful.  If it was, you can restart your domain
 by running 'virsh start fedora_core12'; otherwise, please
 restart your installation.
ERROR    monitor socket did not show up.: Connection refused
Traceback (most recent call last):
  File "/usr/bin/virt-install", line 780, in <module>
    main()
  File "/usr/bin/virt-install", line 678, in main
    start_time, guest.start_install)
  File "/usr/bin/virt-install", line 733, in do_install
    dom = install_func(conscb, progresscb, wait=(not wait))
  File "/usr/lib/python2.6/dist-packages/virtinst/Guest.py", line 541,
in start_install
    return self._do_install(consolecb, meter, removeOld, wait)
  File "/usr/lib/python2.6/dist-packages/virtinst/Guest.py", line 633,
in _do_install
    self.domain = self.conn.createLinux(install_xml, 0)
  File "/usr/lib/python2.6/dist-packages/libvirt.py", line 1077, in
createLinux
    if ret is None:raise libvirtError('virDomainCreateLinux() failed',
conn=self)
libvirtError: monitor socket did not show up.: Connection refused


Thanks.

Re: Install a new guest remotely?

[Daniel P. Berrange]

On Mon, Jan 11, 2010 at 11:37:25AM -0500, rek2 wrote:
> 
> 
> > Then use virsh vncdisplay to get the port on the server to
> connect
> 
> > your VNC viewer.  We use an SSH tunnel for the connection to
> ensure
> 
> > security.
> 
> >
> 
> > Neil
> 
> >
> 
> ok so I must to be doing something wrong..
> here is my  line:
> virt-install --connect qemu:///system -n fedora_core12 -r 1048576
> --vcpus=2 -f /var/kvm_image
> s_local/fedora_core12.qcow2 -s 20  -c ~/Fedora-12-x86_64-netinst.iso
> --os-type linux  --acce
> lerate --vnc --noautoconsole --network=bridge:br0 --hvm
> 
> then I get:
> 
> 
> Starting install...
> monitor socket did not show up.: Connection refused
> Domain installation may not have been
>  successful.  If it was, you can restart your domain
>  by running 'virsh start fedora_core12'; otherwise, please
>  restart your installation.

[snip]

> libvirtError: monitor socket did not show up.: Connection refused

This all basically says the KVM guest failed to start. Check the
log file in /var/log/libvirt/qemu/$NAME.log for possible further
details


Regards,
Daniel
-- 
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Re: Install a new guest remotely?

[rek2]

>   
>> libvirtError: monitor socket did not show up.: Connection refused
>>     
> This all basically says the KVM guest failed to start. Check the
> log file in /var/log/libvirt/qemu/$NAME.log for possible further
> details
>
>
> Regards,
> Daniel
>   

Thanks but this is the only info I got in the log
cat fedora_core12.log
LC_ALL=C
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
/usr/bin/kvm -S -M pc-0.11 -m 1048576 -smp 2 -name fedora_core12 -uuid
f1038428-1cda-764b-f35c-f5270f8022cb -monitor
unix:/var/run/libvirt/qemu/fedora_core12.monitor,server,nowait
-no-reboot -boot d -drive
file=/var/kvm_images_local/fedora_core12.qcow2,if=ide,index=0 -drive
file=/root/Fedora-12-x86_64-netinst.iso,if=ide,media=cdrom,index=2 -net
nic,macaddr=54:52:00:03:63:c4,vlan=0,name=nic.0 -net
tap,fd=19,vlan=0,name=tap.0 -serial pty -parallel none -usb -vnc
127.0.0.1:4 -k en-us -vga cirrus
char device redirected to /dev/pts/5

Re: Install a new guest remotely?

[rek2]

> Thanks but this is the only info I got in the log
> cat fedora_core12.log
> LC_ALL=C
> PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
> /usr/bin/kvm -S -M pc-0.11 -m 1048576 -smp 2 -name fedora_core12 -uuid
> f1038428-1cda-764b-f35c-f5270f8022cb -monitor
> unix:/var/run/libvirt/qemu/fedora_core12.monitor,server,nowait
> -no-reboot -boot d -drive
> file=/var/kvm_images_local/fedora_core12.qcow2,if=ide,index=0 -drive
> file=/root/Fedora-12-x86_64-netinst.iso,if=ide,media=cdrom,index=2 -net
> nic,macaddr=54:52:00:03:63:c4,vlan=0,name=nic.0 -net
> tap,fd=19,vlan=0,name=tap.0 -serial pty -parallel none -usb -vnc
> 127.0.0.1:4 -k en-us -vga cirrus
> char device redirected to /dev/pts/5
> --
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>   

ok found this on syslog
 qemudDomainLookupByName:2677 : Domain not found: no domain with
matching name 'fedora_core12'

I have 4 guest running on this server with no issues why is telling me
it cant find a domain?

Re: Install a new guest remotely?

[Mihamina Rakotomandimby]

> rek2 <rek2@binaryfreedom.info> :
> I have 4 guest running on this server with no issues why is telling me
> it cant find a domain?

virsh list --all

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RE: Install a new guest remotely?

[Neil Aggarwal]

> ok so I must to be doing something wrong..
> here is my  line:
> virt-install --connect qemu:///system -n fedora_core12 -r 1048576
> --vcpus=2 -f /var/kvm_images_local/fedora_core12.qcow2 -s 20  -c 
> ~/Fedora-12-x86_64-netinst.iso --os-type linux  --accelerate 
> --vnc --noautoconsole --network=bridge:br0 --hvm

I dont know about the command you are using.
I usually use a command like this:
 
virt-install -n v1067 -r 512 --vcpus=1 --os-type=linux
--os-variant=ubuntuhardy -v --accelerate -c
/tmp/turnkey-lamp-2009.10-hardy-x86.iso -f /var/lib/libvirt/images/v1067.img
-s 15 -b br0 --vnc --noautoconsole
 
Also, if I understand correctly, the -r command is in megabytes so you
are allocating a very large amount of ram to your guest.
 
    Neil

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Re: Install a new guest remotely?

[rek2]

86.iso -f /var/lib/libvirt/images/v1067.img
> -s 15 -b br0 --vnc --noautoconsole
>  
> Also, if I understand correctly, the -r command is in megabytes so you
> are allocating a very large amount of ram to your guest.
>  
>     Neil
>   

you got it!!!  it was the ram.. thanks so much:

Domain installation still in progress. You can reconnect to
the console to complete the installation process.

so now I can use

virt-viewer --connect qemu+ssh://root@servername/system GUESTNAME

going to try this. thanks again