http://ubuntu-tutorials.com/2010/01/16/reset-gnome-keyring-password-on-ubuntu/
Just copy the solution here:
Method 1:
It is possible to clobber your keyring passphrase and settings from the Terminal. Open a terminal (Applications > Accessories > Terminal), and run the command:
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# rm ~/.gnome2/keyrings/login.keyring |
On older systems you may need to try:
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# rm ~/.gnome2/keyrings/default.keyring |
Method 2:
The second method bypasses the Terminal and uses the graphical interface strictly. To delete your current keyring, follow the steps below:
- Navigate to Applications > Accessories > Passwords and Encryption Keys
- Select the far-right tab “Passwords”
- Select your keyring
- Right-click and attempt “Change Password” or, if that doesn’t work, select “Delete”