Re: [Xen-users] vfb in PV

[jim burns <jim_burn@xxxxxxxxxxxxx>]

On Sunday 09 March 2008 06:14:01 am Nikhil Talpallikar wrote:
> I tried to install vnc using the rpm vnc-4.1.2-9.fc6.src.rpm. i got the
> following error.
>
> [root@fc6_pristine /]# rpm -ivh vnc-4.1.2-9.fc6.src.rpm
> error: cannot create %sourcedir /usr/src/redhat/SOURCES
> [root@fc6_pristine /]#
>
>
> how do i install vnc and X11 components to this PVM?

I doubt you really want to be compiling packages from scratch. You get that 
error the first time you try to install a .src.rpm (source code rpm). If 
that's really what you want to do, you need to create the directories:

/usr/src/redhat
/usr/src/redhat/SOURCES
/usr/src/redhat/SPECS
/usr/src/redhat/RPMS
/usr/src/redhat/RPMS/i586
/usr/src/redhat/RPMS/noarch
/usr/src/redhat/RPMS/athlon
/usr/src/redhat/RPMS/i486
/usr/src/redhat/RPMS/i686
/usr/src/redhat/RPMS/i386
/usr/src/redhat/BUILD
/usr/src/redhat/SRPMS

But more likely, you want the binary rpm. Change your download path from, eg:

http://download.fedora.redhat.com/pub/fedora/linux/core/updates/6/SRPMS/vnc-4.1.2-9.fc6.src.rpm

to:

http://download.fedora.redhat.com/pub/fedora/linux/core/updates/6/i386/vnc-4.1.2-9.fc6.i386.rpm

or better still, upgrade to fc8.

Now, vnc goes on the machine you are connecting to the guest from. It could be 
dom0 (and has to be by default, unless you specify a vnclisten='0.0.0.0' parm 
in your guest's config), or it could go on any (fedora) pc on your network.

In the guest, assuming it is also fedora, you *could* install vnc-server, but 
it's easier to use xen's builtin vnc server (xen-vncfb on fc6/fc7, qemu-dm on 
fc8). You connect thru dom0's ip address. Assuming your vnc related parms in 
your guest's config look like:

vnc=1
vnclisten="0.0.0.0"
vncdisplay=10
#vncunused=1
vncconsole=1
vncpasswd=""
keymap='en-us'

you would connect (on dom0) with 'vncviewer :10', or on another client 
with 'vncviewer dom0-ip:10'. Make sure port 10 (actually, 5900 + 10) is not 
in use by any other guest or server on dom0, or you could comment out 
vncdisplay, and uncomment vncunused to allow xen's vnc component to pick the 
first unsused vnc port #. On fc8/modern xen versions, the syntax is a little 
different:

vfb=[ 'type=vnc, keymap=en-us, vnclisten=0.0.0.0, vncunused=1' ]

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