首先SSH登录后,查看用户的系统信息: # uname -a
Linux zichen.com 2.4.20-8smp #1 SMP Thu Mar 13 16:43:01 EST 2003 i686 athlon i386 GNU/Linux
证明是Linux系统,根据内核版本2.4.20-8smp,加上国内使用的常见系统,估计应该是redhat 9发行包。 # cat /etc/*release*
Red Hat Linux release 9 (Shrike)
这也证明了我们对系统版本的猜想。
然后看一下用的是什么文件系统。因为该用户并非高手,估计在装系统的时候就是一路回车下来,redhat 9默认的应该是EXT3,不过我们还是看一下: # parted
GNU Parted 1.6.3
Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
This program is free software, covered by the GNU General Public License.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
Using /dev/sda
Information: The operating system thinks the geometry on /dev/sda is 8942/255/63. Therefore, cylinder 1024 ends at 8032.499M.
(parted) print Disk geometry for /dev/sda: 0.000-70149.507 megabytes
Disk label type: msdos
Minor Start End Type Filesystem Flags
1 0.031 101.975 primary ext3 boot
2 101.975 10103.378 primary linux-swap
证明确实是这样子。随后我们翻阅了EXT3文件系统的相关技术参数,EXT3是在EXT2基础上演变而来。EXT2所支持最大单一文件长度是2G,这个是很蹩脚的一个限制。EXT3做的很大一个改善就是将这个限制放大到了2TB,由此稍松一口气,起码不是操作系统上的限制。