Create well-organized and polished visualizations of your virtual and backup environments when planning VMware vSphere, Microsoft Hyper-V or Veeam deployments. It helps you to gain better visibility and valuable business insights.
Course Of The Month
9 days, 13 hours left to enrollBecome a Premium Member and unlock a new, free course in leading technologies each month.
Solved
Linux password
Posted on 2012-12-25
I have linux gno installed and can't remember the administrator password. Is there anything I can do to change the current password?
[X]
Welcome to Experts Exchange
Add your voice to the tech community where 5M+ people just like you are talking about what matters.
- Help others & share knowledge
- Earn cash & points
- Learn & ask questions
-
6
-
3
10 Comments
You should be able to use a Live CD... See http://www.howtogeek.com/howto/linux/reset-your-ubuntu-password-easily-from-the-live-cd/
Active today
As long as you can boot the system, and as long as you can mount the partition (/) of the drive, you can navigate to the etc/shadow and modify the login.
Do you have a limited user that you can login with and then use sudo to elevate your rights?
Do you have a limited user that you can login with and then use sudo to elevate your rights?
Active today
Ok, the only option is to use a liveCd or USB stick to boot the sysytem and the mount the partition that has the etc directory and edit shadow to replace the current password with a new one.
The complexity depends on how your current system partitioned/setup.
I.e. does the system have raw partitions, lvm based partition or software raid with lvm overlay.
In the case of software raid, you must have info on which disks/partitions make up which volume to avoid data corruption.
RAID 5 groups will cause the most difficulties.
When dealing with software raid, you have to use mdadm, and other tools to be in a position to identify array members.
The complexity depends on how your current system partitioned/setup.
I.e. does the system have raw partitions, lvm based partition or software raid with lvm overlay.
In the case of software raid, you must have info on which disks/partitions make up which volume to avoid data corruption.
RAID 5 groups will cause the most difficulties.
When dealing with software raid, you have to use mdadm, and other tools to be in a position to identify array members.
Active today
if this is raw partitions or LVM only,
fdisk -l will tell you which drives are partitions how.
raw partitions you can simply do
mount /dev/sdax /mnt and look to see what is there.
if LVM partitions are referenced,
you would need to use pvscan, vgscan,lvscan
lvmdiskscan
to see what LVM partitions there are and then do the same
mount /dev/volumegroup/logicalvo
fdisk -l will tell you which drives are partitions how.
raw partitions you can simply do
mount /dev/sdax /mnt and look to see what is there.
if LVM partitions are referenced,
you would need to use pvscan, vgscan,lvscan
lvmdiskscan
to see what LVM partitions there are and then do the same
mount /dev/volumegroup/logicalvo
Featured Post
We value your feedback.
Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!
Question has a verified solution.
If you are experiencing a similar issue, please ask a related question
Introduction
We as admins face situation where we need to redirect websites to another. This may be required as a part of an upgrade keeping the old URL but website should be served from new URL. This document would brief you on different ways ca…
Join Greg Farro and Ethan Banks from Packet Pushers (http://packetpushers.net/podcast/podcasts/pq-show-93-smart-network-monitoring-paessler-sponsored/) and Greg Ross from Paessler (https://www.paessler.com/prtg) for a discussion about smart network …
Learn several ways to interact with files and get file information from the bash shell.
ls lists the contents of a directory: Using the -a flag displays hidden files: Using the -l flag formats the output in a long list: The file command gives us mor…
How to Install VMware Tools in Red Hat Enterprise Linux 6.4 (RHEL 6.4) Step-by-Step Tutorial
Suggested Courses
Earn Certification
HTML5 Specialist - Certification
Free withPremium
Course of the Month9 days, 13 hours left to enroll
624 members asked questions and received personalized solutions in the past 7 days.
Join the community of 500,000 technology professionals and ask your questions.