linux安装后的一些问题解决

1、中文乱码问题

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安装这个两个中文包，成功显示中文网页
rpm -ivh fonts-chinese-3.02-12.el5.noarch.rpm
rpm -ivh fonts-ISO8859-2-75dpi-1.0-17.1.noarch.rpm
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2、修改linux屏幕分辨率
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找到合适的分辨率

3、开机故障
在修改/etc/selinux/config　SELINUX=disable后开机出现unabletoloadselinuxpolicy. machine is in enforcing mode. halting now.kernel panic-not syncing:attempted to kill init!解决方法：在Grub启动菜单上按e进入编辑模式，在启动项“kernel /vmlinuz-2.6.23.1-42.fc8 ro root=/dev/vogroup00/logvol00 rhgb quiet”后面加上 enforcing=0 ，回车，然后按b启动即可

4. mysql安装问题最近新装好的mysql在进入mysql工具时，总是有错误提示:
# mysql -u root -p
Enter password:
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)
或者
# mysql -u root -p password 'newpassword'
Enter password:
mysqladmin: connect to server at 'localhost' failed
error: 'Access denied for user 'root'@'localhost' (using password: YES)'

现在终于找到解决方法了。本来准备重装的，现在不必了。
方法操作很简单，如下：
# /etc/init.d/mysqld stop
# mysqld_safe --user=mysql --skip-grant-tables --skip-networking &
# mysql -u root mysql
mysql> UPDATE user SET Password=PASSWORD('新密码') where USER='root' and host='root' or host='localhost';
mysql> FLUSH PRIVILEGES;
mysql> quit;# /etc/init.d/mysqld restart
# mysql -u root -p
Enter password: <输入新设的密码>