I have forgotten my root password, on my system, and as a result unable to
access my important files, on my redhat LINUX 8.x m/c. Kindly tell me how
reset/change the existing password, and make a new one. Any help will be
greatly appreciated. The problem arose because I left the system idle without
using it for a few months and in the intervening period, forgot the password.
This request is genuine. Thanks in advance for any help.
Not sure what the forum policy is on requests like this but you could try switching to single user mode at the boot loader stage, depending on what boot loader you use. Once the system has booted up you should just be able to use the passwd command to set your password
How do I enter single user mode in GRUB 0.92 ?
This is the initial loader, and it does provide a feature to edit the commands.
Do I have to press any key to enter single user mode. The OS is Red Hat linux
on a P4 .
Ok I just checked this procedure out using GRUB 0.97 and it worked so hopefully it should for you too.
When you turn your system on wait for the GRUB boot load screen to appear, when it does press 'e'
If you have more than one kernel available to boot to you will have to select which kernel you want to edit the startup parameters for and then press 'e' again.
You should then be taken to a screen that shows startup parameters for the kernel you selected. Move down to the line that starts
Code:
kernel /vmlinuz.......
and press 'e' again. This will now take you to the grub edit prompt.
Use the directional arrow keys to move all the way to the end of the line and add the word 'single' on it's own without the quote marks so you will then have a line similar to this:
Code:
kernel /vmlinuz-2.6.15-1.2054-FC5 ro root=/dev/VolGroup00/LogVol100 vga=791 single
Once you have finished editing this line just press enter. You should now be taken back to the previous screen where you can just press b to boot using the modified startup parameter into single user mode. Once at the prompt just use the 'passwd' command and you should be prompted to enter you new password.
i do not have root on a solairs 10 server , however i do have the root role, i was wondering if I can change the root password as a a role with the passwd command? I have not tried yet.
and do i have to use the # chgkey -p afterwards?
i need to patch is why i am asking.
thanks (1 Reply)
I had a question in my test which asked where suppose user B has a program with 's' bit set. Can user A run this program and gain root privileges in any way?
I suppose not as the suid program run with privileges of owner and this program will run with B's privileges and not root. (1 Reply)
I need to list users in /etc/passwd with root's GID or UID or /root as home directory
If we have these entries in /etc/passwd
root:x:0:0:root:/root:/bin/bash
rootgooduser1:x:100:100::/home/gooduser1:/bin/bash
baduser1:x:0:300::/home/baduser1:/bin/bash... (6 Replies)
I access over 100 SUSE SLES servers as root from my admin server, via ssh sessions using ssh keys, so I don't have to enter a password. My SUSE Admin server is setup in the following manner:
1) Remote root access is turned off in the sshd_config file.
2) I am the only user of this admin... (6 Replies)
Hi All
After downloading ZFS documentation from oracle site, I am able to successfully migrate UFS root FS without zones to ZFS root FS. But in case of UFS root file system with zones , I am successfully able to migrate global zone to zfs root file system but zone are still in UFS root file... (2 Replies)
Hi All
Hope it's okay to post on this sub-forum, couldn't find a better place
I've got a 480R running solaris 8 with veritas volume manager managing all filesystems, including an encapsulated root disk (I believe the root disk is encapsulated as one of the root mirror disks has an entry under... (1 Reply)
hi
i am new to unix and i have abig task. i have to \run particular commands having root privileges from a non root user. i know sudo is one of the way but i need sum other approach kindly help
Thanks (5 Replies)
Hi, yesterday, I changed root's shell in /etc/passwd, cause a mistake then I can not log in root account (can't find correct shell). I attempted to log in single-mode, however, it prompted for single-mode's password then I type root's password but still can not log in.
I'm using AIX 5L version 5.2... (2 Replies)
Hi folks,
I'm trying to install a program, and I want to place some of the executables into /usr/bin so that they can be executed from any folder on the computer. I've been giveng the root password, but told never to log in directly as root. Instead, I can wait for a password prompt. However, I... (2 Replies)
All,
I want to run a non-root script as the root user with non-root environment variables with crontab. The non-root user would have environment variables for database access such as Oracle or Sybase. The root user does not have the Oracle or Sybase enviroment variables. I thought you could do... (2 Replies)
12-23-2006
