Fedora Too Old: Yum: [Errno 256] No more mirrors to try

Im still using Fedora 15 for my workstation.

It’s totally out of support since …ago. Yum always fail.


Im trying to install gdal:

but installation is not so smoothly togo

An easy workaround is google/rpmpbone

google “netcdf-4.1.1-6.fc15.i686”, it will direct to page:
same options on the rest RPMs.


# finally.


今天读 桓谭新论。 启窹篇。

东鄙语云: 人闻长安乐,则出门西向而笑;知肉味美,则对屠门而大嚼。



Fri Oct 25 21:39:52 CST 2013

这段日志记下来,是在服务器搬家后。 这以后 这些日志也许就能正常访问了。








其直”代”、“伐” 分别

代、伐 两字 字义同乎,是依代讳伐之谓? 徜是如此,是战国“以攻伐为贤”,是而贤者伐暴乱而代之为贤。贤代贤又如何谓之顺?何则贤而暴乱更替不断?“烦”其妙不可言。

又,何谓之“乱”。其 治乱不分, 而或不辨不肖之徒所征伐代替者,乱矣。或言,以不肖犯贤者,谓之乱。以不肖代不肖,亦如是。



A Best Practice to Prepare EL6 Linux for Oracle RDBMS Installation

following is not a guide to install RDBMS, but a quick environment preparation before that.
this text works on both Linux/Windows host.

0. to setup Oracle RDBMS 12c on EL6.3 vbox.  for testing purpose.

1. prepare virtualbox.
setup a new linux machine, with harddisk 40G,  network using NAT.

2. attach image on CD. boot

3. install option.
a) using the full disk, using default dynamic lv settings(means you can adjust disk sizes whenever you want)
b) install option: Desktop (or you may have to using vnc or inst other Xwindow options if you choose “Database Server”).
c) reboot after installation. using account: oracle/oracle

4.  we need to manually install vboxtools (for a better display and operation experience enhancement)
before that we need to :

5.   keep the sys image mount.  manually install kernel-uek-devel, the # should be the same to your currently running version.

6.  check your yum repo setting. (you need uln repo, or simple public-yum is ok)
or you have to manually install dependency in the package folder.
# yum install gcc

7.  detach the sys-image. choose “Install Guest Additions”
run as prompt, or in cmd.

8.  ignore following warning, as the package already re-named to kernel-uek-devel

9. about the necessary packages you can use following cmd:

10. choosing “System”->”Preference”->”Startup Applications”
remove item “PackageKit Update Applet” , so that you should update your pkgs whenever you want and need.
remove any other items you dont like.

11. disable SELinux and firewall.
edit /etc/selinux/config  to –>”disabled”
system-config-firewall  –> “Disable”

12. let eth0 connect automatically.
either 1) using desktop network-manager, edit connection–>eth0–> connect automatically.
or 2) edit /etc/sysconfig/network-scripts/ifcfg-eth0
add following like:  “ONBOOT=yes”

reboot the node.

F.  setups already done.  you can now following guide to complete the installation

Oracle Database 11g Release 2 (11.2) Installation On Oracle Linux 6


the steps are simple but, wish it saves time you read this post before the installation.