Friday, May 17, 2013

play with vncserver... when it showed nothing

I often use "ssvnc" to connect my servers to install or do something about X. Anyway, I must to start VNC before by using "vncserver".
[surachart@oralearning ~]$ vncserver

New 'oralearning:1 (surachart)' desktop is oralearning:1

Starting applications specified in /home/surachart/.vnc/xstartup
Log file is /home/surachart/.vnc/oralearning:1.log

[surachart@oralearning ~]$
I ended up find nothing when I connected VNC as below picture.
So, I checked "/home/surachart/.vnc/oralearning:1.log" file to investigate the issue.
Fri May 17 15:46:12 2013
 vncext:      VNC extension running!
 vncext:      Listening for VNC connections on all interface(s), port 5901
 vncext:      created VNC server for screen 0
/home/surachart/.vnc/xstartup: line 27: xsetroot: command not found
/home/surachart/.vnc/xstartup: line 29: twm: command not found
/home/surachart/.vnc/xstartup: line 28: xterm: command not found
As messages in log file. I installed some packages, killed VNC and started VNC again.
[root@oralearning ~]# yum install xorg-x11-twm xorg-x11-server-utils xterm
Loaded plugins: security
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package xorg-x11-server-utils.x86_64 0:7.5-13.el6 will be installed
--> Processing Dependency: mcpp for package: xorg-x11-server-utils-7.5-13.el6.x86_64
---> Package xorg-x11-twm.x86_64 1:1.0.3-5.1.el6 will be installed
---> Package xterm.x86_64 0:253-1.el6 will be installed
--> Running transaction check
---> Package mcpp.x86_64 0:2.7.2-4.1.el6 will be installed
--> Processing Dependency: for package: mcpp-2.7.2-4.1.el6.x86_64
--> Running transaction check
---> Package libmcpp.x86_64 0:2.7.2-4.1.el6 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

 Package                                   Arch                       Version                              Repository                      Size
 xorg-x11-server-utils                     x86_64                     7.5-13.el6                           ol6_latest                     158 k
 xorg-x11-twm                              x86_64                     1:1.0.3-5.1.el6                      ol6_latest                     100 k
 xterm                                     x86_64                     253-1.el6                            ol6_latest                     357 k
Installing for dependencies:
 libmcpp                                   x86_64                     2.7.2-4.1.el6                        ol6_latest                      68 k
 mcpp                                      x86_64                     2.7.2-4.1.el6                        ol6_latest                      23 k

Transaction Summary
Install       5 Package(s)

Total download size: 706 k
Installed size: 1.6 M
Is this ok [y/N]: y
Downloading Packages:
(1/5): libmcpp-2.7.2-4.1.el6.x86_64.rpm                                                                                  |  68 kB     00:01
(2/5): mcpp-2.7.2-4.1.el6.x86_64.rpm                                                                                     |  23 kB     00:00
(3/5): xorg-x11-server-utils-7.5-13.el6.x86_64.rpm                                                                       | 158 kB     00:00
(4/5): xorg-x11-twm-1.0.3-5.1.el6.x86_64.rpm                                                                             | 100 kB     00:00
(5/5): xterm-253-1.el6.x86_64.rpm                                                                                        | 357 kB     00:01
Total                                                                                                            73 kB/s | 706 kB     00:09
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
  Installing : libmcpp-2.7.2-4.1.el6.x86_64                                                                                                 1/5
  Installing : mcpp-2.7.2-4.1.el6.x86_64                                                                                                    2/5
  Installing : xorg-x11-server-utils-7.5-13.el6.x86_64                                                                                      3/5
  Installing : 1:xorg-x11-twm-1.0.3-5.1.el6.x86_64                                                                                          4/5
  Installing : xterm-253-1.el6.x86_64                                                                                                       5/5
  Verifying  : libmcpp-2.7.2-4.1.el6.x86_64                                                                                                 1/5
  Verifying  : xorg-x11-server-utils-7.5-13.el6.x86_64                                                                                      2/5
  Verifying  : mcpp-2.7.2-4.1.el6.x86_64                                                                                                    3/5
  Verifying  : xterm-253-1.el6.x86_64                                                                                                       4/5
  Verifying  : 1:xorg-x11-twm-1.0.3-5.1.el6.x86_64                                                                                          5/5

  xorg-x11-server-utils.x86_64 0:7.5-13.el6              xorg-x11-twm.x86_64 1:1.0.3-5.1.el6              xterm.x86_64 0:253-1.el6

Dependency Installed:
  libmcpp.x86_64 0:2.7.2-4.1.el6                                           mcpp.x86_64 0:2.7.2-4.1.el6

[root@oralearning ~]# exit
[surachart@oralearning ~]$  vncserver  -kill  :1
Killing Xvnc process ID 1647
[surachart@oralearning ~]$
[surachart@oralearning ~]$ vnc
vncconfig  vncpasswd  vncserver
[surachart@oralearning ~]$ vncserver

New 'oralearning:1 (surachart)' desktop is oralearning:1

Starting applications specified in /home/surachart/.vnc/xstartup
Log file is /home/surachart/.vnc/oralearning:1.log

[surachart@oralearning ~]$ less /home/surachart/.vnc/oralearning\:1.log

Connected to server again. It was all right for me.

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