ubuntu 12.10 cannot type anything after entering recovery mode, root

Try again. There is no feedback when you enter a password but it should be accepted: just type and press enter when done.

Note passwords are case sensitive

This is also the case with sudo in a regular desktop in the terminal. The input is accepted, just type as ifit was being received.

k wil try n wil let u know. thank u very much

tried!!
authetication manupulation error

authentication manupulation error

Run:

mount -o remount,rw /

Try again, you get that because the file system is read only

where should i run dat. in same - root shell?

should i type exactly d same command?

tried mount -o remount,rw/
same prob persist!!!!

uffff its not working. even dat remount command is not working........ uffffff... what to do now?????

prob not solved yet................................
dont wanna run whole reboot process of installing os again!!!
sombody pl help...

Instructions for resetting a password

There are a few methods (mostly similar) take a look at these any should work

http://www.psychocats.net/ubuntu/resetpassword

https://help.ubuntu.com/12.04/ubuntu-help/user-forgottenpassword.html

http://askubuntu.com/questions/24006/how-do-i-reset-a-lost-administrative-password

http://naveenubuntu.blogspot.co.uk/2012/05/recover-login-password-of-ubuntu-1204.html

k............... theres a good news...........
remounting worked.
changed password. but stil cannt access with new passwd!!!!
wht now.
(even tried naveenbuntu....)
pl help
thanks to warren hill and actionparsnip

i entered in root shell after changing the password again!
this time (it was 1st time) system asked root password. i typed the passwd i changed. it accepted!! but not working with admin log in!!1 pl help

Open a terminal (CTRL+ALT+T) Enter the following commands and let us know the output

cat /etc/passwd; id

sory for let response.
it says no file or directory

note the space between cat and /etc/passwd

fed up.

gonna reinstall....
should i?

yes, there was problem in my input. no space.
now followin is outpu

root:x:0:0:root:/root:/bin/bash
daemon:x:1:1:daemon:/usr/sbin:/bin/sh
bin:x:2:2:bin:/bin:/bin/sh
sys:x:3:3:sys:/dev:/bin/sh
sync:x:4:65534:sync:/bin:/bin/sync
games:x:5:60:games:/usr/games:/bin/sh
man:x:6:12:man:/var/cache/man:/bin/sh
lp:x:7:7:lp:/var/spool/lpd:/bin/sh
mail:x:8:8:mail:/var/mail:/bin/sh
news:x:9:9:news:/var/spool/news:/bin/sh
uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
proxy:x:13:13:proxy:/bin:/bin/sh
www-data:x:33:33:www-data:/var/www:/bin/sh
backup:x:34:34:backup:/var/backups:/bin/sh
list:x:38:38:Mailing List Manager:/var/list:/bin/sh
irc:x:39:39:ircd:/var/run/ircd:/bin/sh
gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
libuuid:x:100:101::/var/lib/libuuid:/bin/sh
syslog:x:101:103::/home/syslog:/bin/false
colord:x:102:105:colord colour management daemon,,,:/var/lib/colord:/bin/false
messagebus:x:103:107::/var/run/dbus:/bin/false
lightdm:x:104:108:Light Display Manager:/var/lib/lightdm:/bin/false
avahi-autoipd:x:105:112:Avahi autoip daemon,,,:/var/lib/avahi-autoipd:/bin/false
avahi:x:106:113:Avahi mDNS daemon,,,:/var/run/avahi-daemon:/bin/false
usbmux:x:107:46:usbmux daemon,,,:/home/usbmux:/bin/false
kernoops:x:108:65534:Kernel Oops Tracking Daemon,,,:/:/bin/false
pulse:x:109:119:PulseAudio daemon,,,:/var/run/pulse:/bin/false
rtkit:x:110:122:RealtimeKit,,,:/proc:/bin/false
speech-dispatcher:x:111:29:Speech Dispatcher,,,:/var/run/speech-dispatcher:/bin/sh
hplip:x:112:7:HPLIP system user,,,:/var/run/hplip:/bin/false
saned:x:113:123::/home/saned:/bin/false
janarth:x:1000:1000:janarth,,,:/home/janarth:/bin/bash
whoopsie:x:114:125::/nonexistent:/bin/false
guest-zH7jlr:x:115:126:Guest,,,:/tmp/guest-zH7jlr:/bin/bash
uid=1000(janarth) gid=1000(janarth) groups=1000(janarth),4(adm),20(dialout),24(cdrom),46(plugdev),109(nopasswdlogin),116(lpadmin),118(admin),124(sambashare)

wht does abouve output mean???
wht should i do. sry for troublin u all for long.

There are two bits to all this the first bit lets us know what users are allowed on the system. Most are programs there is only one user

The important line here is

janarth:x:1000:1000:janarth,,,:/home/janarth:/bin/bash

The second bit tells us your privileges

uid=1000(janarth) gid=1000(janarth) groups=1000(janarth),4(adm),20(dialout),24(cdrom),46(plugdev),109(nopasswdlogin),116(lpadmin),118(admin),124(sambashare)

The problem appears to be that you are not a member of the 'sudo' group and therefore not an administrator on the system.

We can fix that however go back into a recovery console as you would if you were changing the password. You can change the password if you want but there should be no need to. However you do need to run this command

usermod -a -G sudo janarth

reboot and all should be OK

i ran dat command twice!!
once
usermod -a -G sudo janarth
(output : there were few commands)
den-
usermod -a-G sudo janarth
(output : their were lots of commands!!)
but still cannt login with new passwd or even cannt create new user account.
wht next den??

The word is 'then' not 'den'

if you use proper English words rather than some street talk you will appear smarter. It also doesn't confuse non-native Englsh speakers. The word 'then' is ONE extra letter. Not much extra effort and you are not charged by the letter here

@ actionparnsnip :
i am sorry for misusing language and the rough use. thanks for the help till now and hence forth.........
cuminning back to my problem. what should i do furthur. please do help.
thanking you for the cooperation and spending time on solving the problem.
(sorry if there is any spelling mistake. i am not too good at it.)

Don't worry too much about typing errors. Andrew is correct that correct spelling does make it easier for others to understand particularly if people trying to follow but we all mistype occasionally.

You can certainly re-install if you want to depends on what you have to lose. If you do decide to reinstall make sure you give the first user at least a password. I would recommend all users have a password.

If you decide not to reinstall can you give us the output of the following commands now

lsb_release -a; uname - a; id

And we will try and assist further

to all of you who are helping me to solve this-
 if assisting me furthur is eating your time unnecessarily then i think i should stop. but still i am not ready to reinstall because solving this problem will take me more inside ubuntu. may be i also can contribute to others when needed. its upgrading my knowladge. thanks for the help. i dont know how can i help you. but i would like to know it from your side.

Can you give us the output of the commands I requested please?

lsb_release -a; uname - a; id

janarth@janarth-Lenovo-G570:~$ lsb_release -a; uname - a; id
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 12.04.1 LTS
Release: 12.04
Codename: precise
uname: extra operand `-'
Try `uname --help' for more information.
uid=1000(janarth) gid=1000(janarth) groups=1000(janarth),4(adm),20(dialout),24(cdrom),46(plugdev),109(nopasswdlogin),116(lpadmin),118(admin),124(sambashare)

this is what the output was, after running above given command in ctrl+alt+t

You are still not being shown as part of sudo and this is why you can't change things

You may want to reinstall if its easy. If not

Open a terminal and give us the output of the command

-------------------------------
cat /etc/group
------------------------------

Does it include sudo?

If yes then you need to go to a recovery console as shown here

http://www.psychocats.net/ubuntu/resetpassword

make the file system read-write with

-----------------------------
mount -o rw,remount /
------------------------------

Add your self to sudo group with

-----------------------------
usermod -a -G sudo janarth
------------------------------

Job done. If this doesn't work we need to know what the error messages say