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Thread: Recover Mode Password Reset black Screen

  1. #1
    Join Date
    Jun 2014
    Beans
    3

    Recover Mode Password Reset black Screen

    I apologize I am new to Linux. I have a computer at work that hasn't been used in a while and no one remembers the password. Instead of testing a password reset on that actual computer, I am using a netbook that has lubuntu installed to see if I can get a password reset to work. The problem I am having is that when I reset the password using Recovery mode it looks like everything goes perfect until I try to log into the account that I just changed the password. I try to log in, it looks like it takes the password but the screen goes black for a second then goes right back to the log in screen. No error it just looks like it it wants me to log in again. I tried new password three times same thing and when I try the old password it says invalid password.


    These are the steps to reach where I am:

    -I created a new user "test1" (encryption on home folder is checked) and set the password to "helloPa$$1"

    -Logged in to verify the account is good

    -Rebooted computer held shift and booted into "Recovery mode"

    -selected "root" from menu

    Ran the following because I was in read only

    mount -o remount,rw /

    then ran:

    passwd test1

    changed the password to "byeP@ss2"

    typed it in twice and was successfull

    rebooted computer tried to log in with new password and screen goes black for a second then back to login. Tried old password and get incorrect password.

    Any ideas?

  2. #2
    Join Date
    Jun 2014
    Beans
    3

    Re: Recover Mode Password Reset black Screen

    So apparently while reading other blogs it's because I had "encryption" checked. Does anyone know how to get around this in case the computer I will be working on has encryption check?

  3. #3
    Join Date
    Jun 2009
    Location
    0:0:0:0:0:0:0:1
    Beans
    4,376
    Distro
    Xubuntu 13.04 Raring Ringtail

    Re: Recover Mode Password Reset black Screen

    encryption uses the password for the account in the algorithm, what would be the point of encryption if you could bypass it in 30 seconds?
    If you don't care about the data you can delete it and make a empty user folder
    If you need that users data you have to resort to a brute force method or guess that users password

    Personally I don't use encryption, it has a performance impact and i like being able use use low end hardware and it feel like a race car, lol
    Laptop: ASUS A54C-NB91 (Storage: WD3200BEKT + MKNSSDCR60GB-DX); Desktop: Custom Build - Images included; rPi Server
    Putting your Networked Printer's scanner software to shame PHP Scanner Server
    I frequently edit my post when I have the last post

  4. #4
    Join Date
    Jun 2014
    Beans
    3

    Re: Recover Mode Password Reset black Screen

    That's a good enough answer for me! If the user did use encryption and forgot their password then I have done everything I can. The user doesn't know if he used it or not so I guess I'll try a password reset and go from there!

    Thanks!

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