sairaseven
asked on
root password
I have forgotton the password of the root of my Linus. But i can login as a simple user ..........
I have to mount the harddisk and do other administrative works ......................
Please give me some way to get or change the root password..
I have to mount the harddisk and do other administrative works ......................
Please give me some way to get or change the root password..
do u have physical access to server?
S0lar ask you a good question, can you physically access the linux box? if yes, and if it's using lilo as boot manager you can try below
At lilo-prompt send the parameter single or 1 to lilo to boot in singel-user-mode.
1. type linux single or linux 1 at the lilo-prompt
2. type passwd root
3. enter a new password
4. type init 3 to continue to runlevel 3 (or init 5 if you use xdm)
You can also use a boot-root disk and mount the /etc partition and blank out the password in /etc/shadow
At lilo-prompt send the parameter single or 1 to lilo to boot in singel-user-mode.
1. type linux single or linux 1 at the lilo-prompt
2. type passwd root
3. enter a new password
4. type init 3 to continue to runlevel 3 (or init 5 if you use xdm)
You can also use a boot-root disk and mount the /etc partition and blank out the password in /etc/shadow
paullamhkg gave you correct procedure for lilo.
And here is procedure for linux box with grub as boot loader:
-------------
At the bootloader 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].
You can now add the word single once space after the end of the text 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.
And here is procedure for linux box with grub as boot loader:
-------------
At the bootloader 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].
You can now add the word single once space after the end of the text 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.
you can download tomsrootboot http://www.toms.net/rb/
boot computer from floppy
type "fdisk -l" to get current partition information
mount the partition containing the /etc/shadow files
ex. "mount /dev/hdc5 /mnt"
vi shadow you will find an entry as below
root:$1$ve.2WRaU$F8FZqVNwc
change it to
root::12202:0:99999:7:::
save the file, now your root is no password, boot up your linux, login as root without password need, and add the new password for your root
passwd root
hope this info can help :)
boot computer from floppy
type "fdisk -l" to get current partition information
mount the partition containing the /etc/shadow files
ex. "mount /dev/hdc5 /mnt"
vi shadow you will find an entry as below
root:$1$ve.2WRaU$F8FZqVNwc
change it to
root::12202:0:99999:7:::
save the file, now your root is no password, boot up your linux, login as root without password need, and add the new password for your root
passwd root
hope this info can help :)
ASKER CERTIFIED SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
ngopu: before posting comments, please read other experts' posts. Don't duplicate someone's solutions, propose something new only...
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 bootloader, GRUB, you can
enter single user mode by performing the following:
1. At the bootloader menu, type [e] to enter into editing mode.
2. 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].
3. You can now add the word single once space after the end of the text to tell GRUB to boot into single-user Linux mode. Press [Enter] to make the editing change take effect.
4. 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#
5. 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.
Hope this helps
Regards
:-)
To enter single-user mode, reboot your computer. If you use the default bootloader, GRUB, you can
enter single user mode by performing the following:
1. At the bootloader menu, type [e] to enter into editing mode.
2. 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].
3. You can now add the word single once space after the end of the text to tell GRUB to boot into single-user Linux mode. Press [Enter] to make the editing change take effect.
4. 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#
5. 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.
Hope this helps
Regards
:-)
S0lar, is someone try to expend your comment more detail? LOL ;)