December 3, 2012

CAN'T LOG IN

I am trying to log in, but every time I put the user name and password it keeps giving me a message saying incorrect user name and password.

How can change or find the correct user name and password?

when i press ctrl+alt+f3 i can tast my username but not my password? someone...

when i press ctrl+alt+f3 i can tast my username but not my password? someone there can help me

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1st try to find the possible reasons behind of this issue........

1st try to find the possible reasons behind of this issue.....
Most likely, someone changed the root password. which could mean that the box has been hacked / the passwd or shadow file got corrupted or deleted somehow / problem in /etc/nsswitch.conf or ur PAM configuration.
However u can try this:
Reboot Linux, at the grub prompt, edit the kernel line and add the line as init=/bin/bash. When it boots, u will get a bash prompt, and the root fs will be mounted read-only. U will need to remount it RW, then change the root password and run sync, again remount / (root) as ro, and pass the command likeL reboot -f now
OR u can try this way also:
1. boot in rescue mode
2. mount /dev/sdaX /mnt (here X means type the number and assuming sda is
ur HDD id)
3. mount --bind /dev /mnt/dev
4. chroot /mnt
5. passwd root

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Press Ctrl-Alt-F3, and then log in as root, type passwd $username, and create...

Press Ctrl-Alt-F3, and then log in as root, type passwd $username, and create a new password, then cd to /home, verify that there is a directory called$user, and is owned by $user, and $user for the group, if not, mkdir $user, chown $user:$user $user.

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