Take the 2-minute tour ×
Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free, no registration required.

I liked the Ubuntu 12.10, so i Downloaded it and and installed via WUBI, then it told me to restart my PC to complete the installation. After i restarted and selected Ubuntu in the OS selection; for a few seconds a blank screen came and then it showed Shadow Password is on; then a blank screen for a few more seconds; then a whole lot of code-like characters came and it just won't boot up. I just wanna use 12.10 nothing else, i have Vista Business installed on the C:/ Drive, And Ubuntu is installed on the F:/ Drive (F:/ubuntu).

share|improve this question
    
Details of your computer would help... Brand, model, graphics card(s). Most likely it's a graphics card issue. i.e. See askubuntu.com/questions/162075/… –  bcbc Dec 15 '12 at 19:19
2  
I doubt that "shadow password" has anything to do with your problem, and I think this question will focus on that. Maybe reword the whole thing into your real problem: you can't boot, instead of the more or less 'random' thing you picked out as the issue :) –  Nanne Dec 15 '12 at 21:17
add comment

1 Answer

Shadow passwords are an enhancement to login security on Unix systems. Traditionally, passwords are kept in encrypted form in a world-readable table ( /etc/passwd ). To test a password, a program encrypts the given password with the same "key" (salt) that was used to encrypt the password stored in the /etc/passwd file (the salt is always given as the first two characters of the password). Because the encrypted passwords are not "decryptable", authentication takes place by comparison. If the /etc/passwd/ file password matches the encrypted login password, the user is granted access.

More reading HERE

share|improve this answer
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.