作为一个Linux系统管理员,你可能会把Linux 超级用户密码遗忘了,把/etc/inittab或/etc/rc.d/rc.sysinit之类文件误编辑,导致系统不能正常启动的恼人错误?
而为了解决以上问题,你就需要进到linux根文件系统处于可读写状态的单用户模式下。
下面介绍在GRUB引导下进入Linux单用户模式的三种方式:
(1) 硬件环境:
intel P4 / 1G RAM / sata 80G
(2) 软件环境:
1)Fedora Core 3(以下简称为FC3)和Windows2000 advance server双系统
2)LVM管理Linux分区
3)/boot/grub/grub.conf文件内容:
# grub.conf generated by anaconda # # Note that you do not have to rerun grub after making changes to this file # NOTICE: You have a /boot partition. This means that # all kernel and initrd paths are relative to /boot/, eg. # root (hd0,2)
# kernel /vmlinuz-version ro root=/dev/VolGroup00/LogVol00 # initrd /initrd-version.img #boot=/dev/sda default=1 timeout=1000 splashimage=(hd0,2)/grub/splash.xpm.gz hiddenmenu title Fedora Core (2.6.9-1.667)
root (hd0,2)
kernel /vmlinuz-2.6.9-1.667 ro root=/dev/VolGroup00/LogVol00 rhgb quiet initrd /initrd-2.6.9-1.667.img title windows 2000 adv rootnoverify (hd0,0)
chainloader +1
首先,启动电脑,屏幕出现如下提示:
Press any key to enter the menu Booting windows 2000 adv in 999 seconds…
按任一键跳过计时,进入下一步:
GNU GRUB version 0.95 (639K lower/103924K upper memory)
Fedora Core (2.6.9-1.667)
Windows 2000 adv
下面是GRUB的提示:
‘e’ 在booting前编辑启动命令行
‘a’ 在booting前编辑kernel的参数
‘c’进入grub命令行
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