Linux basics - Linux file system structure overview | Linux basic configurations
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- / - root of all directories in Linux file system structure.
- /home - Keeps Linux user account's home directory.
- /etc - keeps Linux server's configuration files and directories.
- /usr - keeps Linux system files.
- /var - keeps system log files.
- /bin - keeps binary files for user applications.
- /sbin - keeps static binary files for system programs.

Some file system structure and directories in one Linux distribution maybe different from other Linux distributions as you can see from Slackware and Ubuntu example above. Right now you don't have to remember all of these directories and what they do. Just remember a few important directories first such as:
Bug #477104 in grub (Ubuntu): “After 9.10 grub update can not boot into Wubi install”
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"cat /boot/grub/
grub.cfg" gives a screen full of garbage. Even "cat /etc/passwd" gives garbage. "ls" can find the files just fine. I can still boot manually by giving the proper "linux" and "initrd" arguments. These files are NOT ACTUALLY CORRUPTED, they can be read just fine in ubuntu. Only grub can no longer read them. That's problem #1. -
Summary: Moving, renaming, or regenerating ANY file, whether it's the kernel, initrd or grub.cfg results in those files becoming unreadable by grub2, probably because they're not being found in the correct place on the drive, resulting in garbage for text files, and invalid magic numbers for binaries. Also, grub-install's modification of C:\wubildr has no effect, and it also leaves behind a mess in /boot/grub on the linux side.
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Ubuntu中文论坛 • 查看主题 - Ubuntu里尝试KDE4
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处理混乱的菜单
一个系统内同时安装GNOME2和KDE4出现最大的问题就是菜单里程序的混乱。
安装Gnome Menu Extended <!-- m -->http://gtk-apps.org/content/show.php?ac ... tent=73515<!-- m -->
<!-- m -->http://www.kde-apps.org/content/show.ph ... c37faf0c91<!-- m -->
在gnome2下,把所有kde程序单独放到kde分类,在kde4下,把所有gnome程序放到gnome分类。
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