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　　很诡异的问题，刚刚软件还能正常的执行，装了“Chinese Support”包之后，软件就报错了：

[root@vm-18-174 data-integration]# ./spoon.sh 
Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=256m; support was removed in 8.0
process 25734: D-Bus library appears to be incorrectly set up; failed to read machine uuid: Failed to open "/var/lib/dbus/machine-id": No such file or directory
See the manual page for dbus-uuidgen to correct this issue.
  D-Bus not built with -rdynamic so unable to print a backtrace
./spoon.sh: line 229: 25734 Aborted                 "$_PENTAHO_JAVA" $OPT -jar "$STARTUP" -lib $LIBPATH "${1+$@}" 2>&1

　　一个全新安装的RHEL6.x的系统，尝试使用GUI程序时报错：Can't open display:。折腾了一整天，发现是最小化安装缺少xorg-x11-xauth包导致的。

　　解决方法：

　　一台服务器安装了CentOS7，系统里有128个rcuos进程和128个rcuob进程，导致新添加的Zabbix一直提示系统的进程数过多，而服务器的CPU并没有这么多核心。

　　记录一下解决办法：

　　升级操作前，请做好备份。如果你的VPS服务商提供快照功能的话，给VPS做个快照最方便了。

　　使用DirectAdmin的custombuild来升级MySQL，非常的简单方便：

cd /usr/local/directadmin/custombuild
./build clean
./build set mysql 5.5
./build update
./build mysql
./build php d

　　又一个安装DirectAdmin时出现的错误

./directadmin: error while loading shared libraries: libssl.so.6: cannot open shared object file: No such file or directory 
./directadmin: error while loading shared libraries: libssl.so.6: cannot open shared object file: No such file or directory

　　和前面DirectAdmin bad ELF interpreter的错误有点相似，libssl.so.6对应的应该是libssl.so.0.9.8e，也就是openssl098e.i686这个包。

　　安装DirectAdmin时出现bad ELF interpreter的错误：

./install.sh: ./directadmin: /lib/ld-linux.so.2: bad ELF interpreter: No such file or directory
./install.sh: ./directadmin: /lib/ld-linux.so.2: bad ELF interpreter: No such file or directory

　　下面有说找不到directadmin.conf：

　　安装webalizer时遇到错误，提示找不到gd库：webalizer:configure: error: gd library not found。

configure: error: gd library not found.. please install libgd
Trying to make webalizer...
make: *** No targets specified and no makefile found.  Stop.

*** The make has failed, would you like to try to make again? (y,n): n

　　尝试通过cpan shell 安装XML::Parser时遇到Could not make: Unknown error错误。

cpan[1]> install XML::Parser
Running install for module 'XML::Parser'
Running make for T/TO/TODDR/XML-Parser-2.41.tar.gz
  Has already been unwrapped into directory /root/.cpan/build/XML-Parser-2.41-gOllU7
Could not make: Unknown error
Running make test
  Can't test without successful make
Running make install
  Make had returned bad status, install seems impossible