[原创]How To: 用ubuntu Desktop LiveCD测试电脑硬件/兼容性
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live cd 的显卡测试问题,你可以看下:
Using Desktop CD Persistence
Live CDs like the Ubuntu Desktop CD provide an easy way to temporarily turn any compatible computer
system into an Ubuntu Linux system. However, the fact that most live CDs don’t provide any sort of persistent
storage for configuration data, custom applications, and so on (other than manually copying files to
other local or networked storage) limits the practical usability of Live CDs to simple demonstrations, general
one-time experimentation, rescuing data from crashed systems, and for general system repair and
recovery efforts. Until now, that is.
The Ubuntu 6.06 Desktop CD provides a built-in mechanism for recognizing an external storage device
with a special name at boot-time and using the contents of that device to restore desktop settings, application
configuration files, and even installed applications. The amount of custom configuration information
and installed applications that you can save and restore is only limited by the size of the external storage
device that you use. The requirements for taking advantage of this capability are the following:
n The external storage device must be one that can be found by the Desktop CD kernel when it boots.
n The external storage device must contain a Linux filesystem that is supported by the Desktop CD
kernel. VFAT, NTFS, and HFS+ filesystems will not work—the filesystem must be an actual
Linux filesystem. Ext2 or ext3 filesystems are recommended for portability.
n The filesystem on the external storage device must have the name casper-rw.
n You must add the persistent keyword to the kernel command line when you boot from the
Desktop CD.
The most common devices used for persistent storage with the Desktop CD are USB devices. USB sticks
(a.k.a. pen drives) are extremely portable, but provide a limited amount of storage. An external USB hard
drive is a better alternative if you need to install applications, related files, and other data that would exceed
the amount of storage available on a USB stick.
If you are using an Ubuntu Desktop
Using Desktop CD Persistence
Live CDs like the Ubuntu Desktop CD provide an easy way to temporarily turn any compatible computer
system into an Ubuntu Linux system. However, the fact that most live CDs don’t provide any sort of persistent
storage for configuration data, custom applications, and so on (other than manually copying files to
other local or networked storage) limits the practical usability of Live CDs to simple demonstrations, general
one-time experimentation, rescuing data from crashed systems, and for general system repair and
recovery efforts. Until now, that is.
The Ubuntu 6.06 Desktop CD provides a built-in mechanism for recognizing an external storage device
with a special name at boot-time and using the contents of that device to restore desktop settings, application
configuration files, and even installed applications. The amount of custom configuration information
and installed applications that you can save and restore is only limited by the size of the external storage
device that you use. The requirements for taking advantage of this capability are the following:
n The external storage device must be one that can be found by the Desktop CD kernel when it boots.
n The external storage device must contain a Linux filesystem that is supported by the Desktop CD
kernel. VFAT, NTFS, and HFS+ filesystems will not work—the filesystem must be an actual
Linux filesystem. Ext2 or ext3 filesystems are recommended for portability.
n The filesystem on the external storage device must have the name casper-rw.
n You must add the persistent keyword to the kernel command line when you boot from the
Desktop CD.
The most common devices used for persistent storage with the Desktop CD are USB devices. USB sticks
(a.k.a. pen drives) are extremely portable, but provide a limited amount of storage. An external USB hard
drive is a better alternative if you need to install applications, related files, and other data that would exceed
the amount of storage available on a USB stick.
If you are using an Ubuntu Desktop
no security measure is worth anything if an attacker has physical access to the machine
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