Ubuntu 使用全记录

折腾了几天，从Breezy升级到Dapper－－－－失败

下载 ISO 映像文件刻成光盘－－－OK

sudo cp /etc/apt/sources.list /etc/apt/sources.list_backupsudo gedit /etc/apt/sources.list

•  清空内容以下边的内容替换并保存

## Add comments (##) in front of any line to remove it from being checked. 

## Use the following sources.list at your own risk.  

deb http://archive.ubuntu.com/ubuntu dapper main restricted universe multiverse

deb-src http://archive.ubuntu.com/ubuntu dapper main restricted universe multiverse

## MAJOR BUG FIX UPDATES produced after the final release

deb http://archive.ubuntu.com/ubuntu dapper-updates main restricted universe multiverse

deb-src http://archive.ubuntu.com/ubuntu dapper-updates main restricted universe multiverse

## UBUNTU SECURITY UPDATES

deb http://security.ubuntu.com/ubuntu dapper-security main restricted universe multiverse

deb-src http://security.ubuntu.com/ubuntu dapper-security main restricted universe multiverse

## BACKPORTS REPOSITORY (Unsupported.  May contain illegal packages.  Use at own risk.)

deb http://archive.ubuntu.com/ubuntu dapper-backports main restricted universe multiverse

deb-src http://archive.ubuntu.com/ubuntu dapper-backports main restricted universe multiverse

## PLF REPOSITORY (Unsupported.  May contain illegal packages.  Use at own risk.)

deb http://packages.freecontrib.org/ubuntu/plf breezy free non-free

deb-src http://packages.freecontrib.org/ubuntu/plf breezy free non-free 

•  更新源

  sudo apt-get update

*
例如 假设 /dev/hdc 是目前 CD/DVD-ROM 所在的位置
*
sudo hdparm -d1 /dev/hdc
sudo cp /etc/hdparm.conf /etc/hdparm.conf_backup
sudo gedit /etc/hdparm.conf
*
将下列几行新增到文件的最后面
/dev/hdc {
 dma = on
}