I am facing problem of authentication of password. extract of terminal is reproduced below:
srira...@ubuntu:~$ cd tesseract-ocr-read-only-408/ srira...@ubuntu:~/tesseract- ocr-read-only-408$ su Password: su: Authentication failure srira...@ubuntu:~/tesseract-ocr-read-only-408$ I used the* same password* for login purpose and authentication purpose for installing, updating etc. and never faced any problem so far. Only problem started when I tried at terminal as su or sudo to go to root - error displayed as "authentication failure" as indicated above. I have not changed password from the date of installation of ubuntu9.04 till today. Request for valuable guidance how to overcome authentication failure or re-install has to be made? I am newbie to lunux and ubuntu. Kindly treat this as SOS. With regards, -sriranga(77yrsold)
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