Questions about the recovery of passwords.

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1
vote
2answers
45 views

How do I prevent others from resetting my admin password in (X)ubuntu 14.04?

I was shocked to discover that my password could be easily reset via the command line. Does that mean anybody with physical access to my machine could reset the password and read the encrypted ...
0
votes
0answers
37 views

Dual boot Ubuntu 14.04 not accepting valid password and recovey mode is not available

I am having problem in booting either Ubuntu or Windows 7 in dual boot system with correct password. Not able to get even the 'recovery mode' as 'Advanced option Ubuntu' also taking me to the page for ...
0
votes
1answer
155 views

How to fix authentication password, when password is rejected?

When I try to upgrade, I am prompted for authentication password. I enter the password I have set, but I receive a message saying it is incorrect. The same thing happens when I am prompted to "unlock" ...
0
votes
0answers
63 views

I am not getting the root prompt in recovery mode

I have dual boot Ubuntu 13.04 OS. I forgot my administrative password. I have tried the method in which you told to reset the password. After logging in recovery mode I selected root but it is not ...
3
votes
2answers
1k views

Lost my password, but can login to main account because automatic login was enabled. Any suggestion to recover my account? [duplicate]

I can login to my account, see my desktop and access the files. But unable to install applications and run updates because I can't remember the last password I've entered while resetting it.
26
votes
7answers
46k views

Getting an “Authentication token manipulation” error when trying to change my user password

I am logging in to my Ubuntu Server using my username. Once I am logged in I am typing passwd command. Entering a new password but a second after getting following error messages: passwd: ...
0
votes
1answer
28 views

Can not Install on a Dell Latitude laptop --

The laptop always boots winXP and requests an Administrator password. I went into the setup where I attempted to reset all passwords and the start up order but the Admin password is still demanded. ...
0
votes
0answers
23 views

Forget Authentication/System Password [duplicate]

How to change the authentication (i forget the current password) password?
0
votes
0answers
62 views

Unable to logging in to ubuntu root

I am trying to connect my machine to internet. It is showing the following message System policy prevents modification of network setting for all users. An application is attempting to perform ...
0
votes
1answer
47 views

Locked out of Ubuntu touch

I have install Ubuntu-touch on my Nexus 5 and everything worked alright. Until today I had set up a 4 digit locking password, that worked. I changed it to a "regular password" but once changed I could ...
1
vote
0answers
84 views

Administrative Password doesn't work after it changed by GUI

I am new to Linux. I have changed my administrative password by GUI (under user accounts setting). But Now its not accepting my password. It says wrong password try again. I am using Ubuntu 14.04 LTS ...
5
votes
1answer
357 views

12.04 home encrypted and I have written down encryption passphrase. How to reset login password?

I set up a friend with 12.04 and he forgot his password. I encrypted his home directory and I have written down the encryption passphrase during the first boot. If he changed his password after I ...
4
votes
1answer
388 views

How do I reboot from the recovery console?

I run Ubuntu in a virtual machine and I've managed to reset my password in recovery mode, by editing the parameters according to these instructions on Superuser.com. Summarizing my steps: I changed ...
0
votes
1answer
257 views

How to reset my password in ubuntu 14.04

I recently installed Ubuntu 14.04. I am not able to install any software because it is not accepting my password. However I am able to log in to my account using the same password on my pc.
1
vote
0answers
67 views
1
vote
1answer
83 views

I've lost my root status [duplicate]

I created a new user and set its option to "root". Then I switched the option of the user which was activated to "standard" and closed the window. But now I can't login as the new user because I ...
1
vote
0answers
81 views

Installing Ubuntu on Windows partition caused administator user to be destroyed? Why? [closed]

I inserted an 11.10 DVD while in windows and was asked if wanted to install on windows like another program, said yes - but in the process my administrator user in windows was destroyed and the ...
0
votes
0answers
272 views

How to recover passphrase for ecryptfs

I read this question can't log in after password change (ecryptfs) But Unfortunatelly it has not answer. I don't know why cryptfs-recovery-private asks me mount Passphrase is it login pass or ...
0
votes
1answer
166 views

No graphical interface after hard shutdown

I just installed ubuntu on my laptop and I must have spelled my username and or password wrong because I cannot login now. I tried shuting down my computer manually by holding down the power button ...
0
votes
2answers
73 views

Unable to login Ubuntu. How can I recover it?

I was trying to setup and ssh server with chrooted and after getting tired of no results and permission issue I ran the following command resulting in a screen that as soon as I enter my user and ...
0
votes
0answers
47 views

set for boot without password still while installing it asks for password. How to reset or recover the password? [duplicate]

Possible Duplicate: How do I reset a lost Administrative(root) password? I have only Ubuntu 12.04 LTS installed on my system. I set logon password as "boot without password" and removed the ...
1
vote
0answers
199 views

Changing the administrator's password [duplicate]

Possible Duplicate: How do I reset a lost Administrative (root) password? I installed Ubuntu 12.04 in my computer along with Windows X P OS.I forgot the password given at the beginning.And ...
3
votes
0answers
89 views

Password recovery [duplicate]

Possible Duplicate: How do I reset a lost Administrative(root) password? I have Ubuntu 11.1 , do not remember setting it up with a password but, now it will not let me in without a ...
3
votes
0answers
3k views

Unable to open Recovery, at boot, using “SHIFT” key (12.04 LTS)

I have tried rebooting multiple times to try to get to "Recovery" (GRUB 2) by holding down "SHIFT" during boot. I am waiting until BIOS screen completes. I need to reset the admin password because I ...
-1
votes
2answers
174 views

reinstall ubuntu or delete the root password without having it?

I have received a laptop from school but i can't download anything because there is a root password on it. I already used the GRUB screen by clicking on the shift button but the '(recovery mode)' ...
0
votes
0answers
597 views

How to Enter into Recovery mode? [duplicate]

Possible Duplicate: How do I boot into a root shell? How would I boot into the Ubuntu and Windows recovery modes if I removed the options to do so from the Grub menu? My root password has ...
2
votes
1answer
571 views

How can I access data on a computer without knowing the login password?

There are a number of files (photos, stories, poetry... etc.) on a computer that I need to retrieve. Is there any way to get around the login procedure or to get to my files without the password? Any ...
0
votes
1answer
81 views

I've changed my login by manual editing the /etc/passwd and my former password is not recognised

I've modified the /etc/passwd by changing manualy mickey to mike such as: mike:x:1000:25357:mike:/home/mickey:/bin/bash Unfortunately, when I'm trying to log as mike, my former password in not ...
8
votes
2answers
5k views

I unexpetedly deleted administrator account and the other accounts are asking root password

I unexpectedly deleted my user account (the only administrator for the machine). I have another account which is standard account now i cant access my hard disk or anything with that standard account ...
1
vote
2answers
3k views

can't log in after password change (ecryptfs)

I am on Ubuntu 12.10 with one user using encrypted home. A while back I have changed by user password and then forgot it. I then made a backup of my files using Dustin's help to an external drive. I ...
1
vote
1answer
607 views

Boot to safe mode to reset password not available

Ubuntu 11.10 Password to root was lost Trying to reboot in safe mode to reset Holding shift (left or right) Esc F1 None are effective during bootup. No BIOS setting appear applicable. All forums seem ...
0
votes
2answers
86 views

Is it possibe to view a forgotten admin password?

My ubuntu pc is setup to auto login, so since I never have to type my password, I've forgotten it. Now, normally I'd just reset it, but I used that password for another online service, and I want to ...
1
vote
1answer
1k views

I forgot the password to a cbz/zip file

I forgot the password to a cbz file, which when I open it says it only contains empty pages, so i rename it to zip, since I read it will open anyway, and I enter what I supposed to be the password, ...
1
vote
1answer
434 views

I accidentally deleted all admin accounts [13.04]

I accidentally deleted all admin accounts, I can only use Guest Account and I don't know my root password. How can I recover my Admin account?
5
votes
1answer
2k views

Using word list to brute force encrypted partition

I used the Disk Utility to encrypt an external HDD about a month ago. Now it seems that I have forgotten the password. I have formed it according to a set of rules, so I have generated a word list ...
0
votes
1answer
265 views

Password stopped working after upgrade to 11.10

We have been using ubuntu for over two years. Every time we download an upgrade, our password has always kept working. After downloading 11.10, The password quit working. We went to the community to ...
7
votes
2answers
8k views

How to reset lost user password on a guest on VMWare server?

I have a ubuntu 10.10 VMWare image that I set up a while back and have forgotten the login details. Normally I'd boot into single user mode to fix this, but I'm having trouble doing this on the ...
0
votes
2answers
92 views

I installed Ubuntu 14.04 LTS and have problems with the password

In the installation process I choose to boot without a password (automatically).It works fine. But when I try to install software over the Software-Center I'm beeing asked for a password. But I have ...
0
votes
1answer
50 views

password recovery while os is running [duplicate]

When I start my PC , then ubuntu is not asking for password. But when I want to install any software , at that time, it is asking for password, Therefore I lost my password. How to recover my ...
2
votes
1answer
110 views

Can't log in on boot up

I set this computer up with Ubuntu for my neighbor about two years ago. Today she tried her normal boot up and log in and her password isn't accepted. I've double checked and she's using what I set ...
0
votes
1answer
23 views

User name recover from cosole

I have "The system is running in low-graphics mode" problem and I tried the recovery mode (Recovery Mode/failsafeX) and it didn't work. It happened after and update I searched for a solution and ...
0
votes
0answers
30 views

How to recover forgtten password [duplicate]

I forgot my Ubuntu password. And now while trying to recover it using recovery mode I am not able to do so. When i uses the command >ls /username its doesn’t show anything except oem. how can i reset ...
0
votes
0answers
39 views

Anyway to bring back encrypted home information [duplicate]

Recently forgot my password? And I've tried to reset the password. The problem is that the home direct is encrypted. So there is no way to log in through new password. Cannot remember old password ...
219
votes
14answers
520k views

How do I reset a lost administrative password?

I'm working on a Ubuntu system, and my client has completely forgotten his administrative password. He doesn't even remember entering one; however it is there. I've tried the suggestions on the ...
0
votes
1answer
85 views

Kubuntu Root Password [duplicate]

I've been running Kubuntu for about a month now, still learning. All of a sudden as of about two days ago, if I try to install or update software using Muon, it asks for the root password. I'm ...
-1
votes
1answer
8k views

how to reset a lost admin password?

how can I reset a lost administrative password ,considering that Ubuntu and windows7 are both installed on the computer , considering also that "Boot up the machine,and after the BIOS screen, hold ...
2
votes
2answers
82 views

How can I use sudo after locking my password?

I was reading about passwordless authentication with ssh. So I made a key and published it to my Ubuntu server, and it worked well. Then decided to lock my password with passwd -l lucas, and I was ...
4
votes
1answer
8k views

Reset Windows Password with Ubuntu Live CD

A friend brought me his PC with Windows Vista to reset the user password because he didn't use it for a long while and forgot his password. So I found a tutorial on how to reset the password by using ...
0
votes
1answer
224 views

How do I access the recovery menu

I want to change my root password but I am not able to access the recovery menu. I followed the steps given here. I choose the advanced option from the grub menu and then the recovery mode, but after ...
0
votes
1answer
171 views

Not able to login through root user [duplicate]

I have installed Ubuntu 14.04 LTS . During installation on my Windows PC using VMWARE Player, it asked a username and I provided one. But now after successful installation, I also want to login as the ...