Skip to main content

Resetting your lost/forgot password in Mac OS X

In case of you forgot your user password on Mac OS X, it is easy to reset. The below steps should help you in resetting your password

  1. Restart your Mac, and goto single user mode by holding ( Command + S ) button on your mac keyboard. Here command button is often referred as Apple button also.
  2. In the command prompt execute following commands
    1. #sh /etc/rc
    2. #passwd (username on your mac for which you want to change the password).
    3. #reboot
  3. Now login to mac in normal mode, use your changed password to login.
Note: All your Key chain stored password will be lost by following above steps.

Popular posts from this blog

How to find firmware or boot ROM version in Mac OS X

Firmware and boot ROM version of your mac can be found in two ways.
Way 1 :
1. From "Apple" menu , choose "About This Mac" menu item. 2. Click " More Info " to open "System Profiler" application. 3. Under Contents -> Select Hardware Tree item.
On the right side panel Under hardware overview section, we can see Boot ROM Version and SMC (Firmware) Version.








Way 2 :
Run the below command in terminal to get boot ROM version and SMC(firmware) version :
$ system_profiler SPHardwareDataType | grep -i "Version" | awk -F ':' '{print $1 $2}'

How to decrypt the Filevault encrypted volume using Recovery HD ?

There might be a time where you want decrypt the FileVault encrypted mac, but you are facing issues in logging into Mac to perform decryption using system preferences. In such cases the following steps will help you in decrypting the disk using Recovery HD. Reboot the Mac, Go to recovery HD partition of the system. (To start your computer from Recovery, restart your Mac and hold down the Command and R keys at startup.)Open Terminal application from Utilities -> Application. First will need to identify the Logical Volume UUID of the encrypted drive using the diskutil corestorage list command: diskutil corestorage list

      4.  Once you have the UUID of the logical volume as shown in above picture, you can then either             unlock or decrypt the encrypted volume using the following commands.
      a) Using the password of an authorised account or the recovery key ( Provided by the                                FileVault at the time of enabling it) on the command line            …