View Full Version : lac pasword root Linux. xin cao thu giup
trunghauhk
14-06-2004, 09:15 AM
Hiện I đang dùng Redhat 9.0, bi lạc mất pass root "hu hu... sắp bị mất trắng rồi" xin được cao thủ chỉ giúp.
tuaninbox
14-06-2004, 03:19 PM
- Bạn vào chế độ linux rescue (boot từ CD).
- Mount /mnt/sysimage.
Từ đây bạn có thể mở file /etc/passwd hay /etc/shadow để chỉnh sửa password. Nếu không thể write được các file này thì bạn hãy chmod nó để có thể write được.
Thân mến.
Theo cách của tuaninbox cũng được hoặc có thể thử :
Help! I forgot my root password. How do I log in now?
You can log in using single-user mode and create a new root password.
To enter single-user mode, reboot your computer. If you use the default boot loader, GRUB, you can enter single user mode by performing the following:
At the boot loader menu, type [e] to enter into editing mode.
You will be presented with a boot entry listing. Look for the line that looks similar to the following:
kernel /vmlinuz-2.4.18-0.4 ro root=/dev/hda2
Press the arrow key until this line is highlighted and press [e].
Press the Spacebar once to add a blank space, then add the word single to tell GRUB to boot into single-user Linux mode. Press [Enter] to make the editing change take effect.
You will be brought back to the edit mode screen. From here, press [b] and GRUB will boot single-user Linux mode. After it finishes loading, you will be presented with a shell prompt similar to the following:
sh-2.05#
You can now change the root password by typing
bash# passwd root
You will be asked to re-type the password for verification. Once you are finished, the password will be changed. You can then reboot by typing reboot at the prompt; then you can log in to root as you normally would
Và rất nhiều thứ bạn có thể tìm ở Red Hat Linux 9: Red Hat Linux Getting Started Guide trong đĩa docs kèm theo với bộ RH9
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