marți, noiembrie 04, 2008

How to change ROOT password when it is lost on Red Hat

1. Reboot your system
2. When GRUB bootloader appear select "e" to edit boot options
3. Select to boot with following options: kernel /vmlinuz-2.4.21-20.EL ro root=LABEL=/ single , the word single need to be added at the end so you will boot in singlemode
4. When command shell appears go to: cd /etc
5. Using vi or other editors avilable select to edit passwd file, vi passwd
6. Look in the file for the line root:x:0:0:root:/root:/bin/bash and replace it with root::0:0:root:/root:/bin/bash, replace "x" with empty
7. Reboot in normal mode
8. When asking to enter the username, enter root username it will login without password, now useing command passwd enter the new password

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