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authentication is required to change user data
Mutilple Authenticate Windows after unlocking Ubuntu 14.10 ( using gnome metacity)Authentication token manipulation error when I try to change passwordCannot authenticate without a passwordCannot turn off passwordPassword Authentication ProblemsAuthentication failed with the correct password and now I cannot use sudo anymoreHow to change administrator password?Authentication with admin password problemUbuntu 14.04.1 howto set a short non complex password for very kiddies?Single user forgot password can't do updatesadmin passwd lost
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I set administrator password to blank. Now, I can't install new programs (message see in title), or change the admin password ("change" button grayed out). I tried a suggested fix from inside the terminal, but can't type anything into the sudo authentication field.
password authentication
asked Nov 23 '12 at 23:20
arminmarminm
611
add a comment |
I set administrator password to blank. Now, I can't install new programs (message see in title), or change the admin password ("change" button grayed out). I tried a suggested fix from inside the terminal, but can't type anything into the sudo authentication field.
password authentication
asked Nov 23 '12 at 23:20
arminmarminm
611
1
The sudo authentication field should stay completely blank as you type. It never displays asterisks, even
– hexafraction
Nov 24 '12 at 0:52
1
How did you set the administrator password to blank? "administrator" is a term used on Windows, on Linux we have a root user, and users with administrator privileges, so it's unclear what you mean.
– Flimm
Nov 26 '12 at 14:33
add a comment |
I set administrator password to blank. Now, I can't install new programs (message see in title), or change the admin password ("change" button grayed out). I tried a suggested fix from inside the terminal, but can't type anything into the sudo authentication field.
password authentication
asked Nov 23 '12 at 23:20
arminmarminm
611
I set administrator password to blank. Now, I can't install new programs (message see in title), or change the admin password ("change" button grayed out). I tried a suggested fix from inside the terminal, but can't type anything into the sudo authentication field.
password authentication
password authentication
asked Nov 23 '12 at 23:20
arminmarminm
611
asked Nov 23 '12 at 23:20
arminmarminm
611
asked Nov 23 '12 at 23:20
arminmarminm
611
asked Nov 23 '12 at 23:20
arminmarminm
611
asked Nov 23 '12 at 23:20
arminmarminm
611
611
1
The sudo authentication field should stay completely blank as you type. It never displays asterisks, even
– hexafraction
Nov 24 '12 at 0:52
1
How did you set the administrator password to blank? "administrator" is a term used on Windows, on Linux we have a root user, and users with administrator privileges, so it's unclear what you mean.
– Flimm
Nov 26 '12 at 14:33
add a comment |
1
The sudo authentication field should stay completely blank as you type. It never displays asterisks, even
– hexafraction
Nov 24 '12 at 0:52
1
How did you set the administrator password to blank? "administrator" is a term used on Windows, on Linux we have a root user, and users with administrator privileges, so it's unclear what you mean.
– Flimm
Nov 26 '12 at 14:33
1
1
The sudo authentication field should stay completely blank as you type. It never displays asterisks, even
– hexafraction
Nov 24 '12 at 0:52
The sudo authentication field should stay completely blank as you type. It never displays asterisks, even
– hexafraction
Nov 24 '12 at 0:52
1
1
How did you set the administrator password to blank? "administrator" is a term used on Windows, on Linux we have a root user, and users with administrator privileges, so it's unclear what you mean.
– Flimm
Nov 26 '12 at 14:33
How did you set the administrator password to blank? "administrator" is a term used on Windows, on Linux we have a root user, and users with administrator privileges, so it's unclear what you mean.
– Flimm
Nov 26 '12 at 14:33
add a comment |
3 Answers
3
active
oldest
votes
OK, there's two parts to this. First, to answer the question you asked:
Reboot into single user mode (see http://www.debuntu.org/recover-root-password-single-user-mode-and-grub if you don't know how) and set the password for root.
However, I don't think that will solve your actual problem. It sounds like the real problem is that the account you normally log in as is not a member of the sudo group - the root account on Ubuntu normally does not have a password, and is not allowed to log in directly. So, instead, I would recommend that you boot into single user mode as outlined above, then issue the following commands:
adduser youraccountname sudo
passwd youraccountname
shutdown -r now
This will make sure that your user is allowed to become root, and will make sure that your user has a password which you can use when prompted. Once the machine finishes rebooting (the third command there), everything should be back to normal.
answered Nov 23 '12 at 23:43
Jim SalterJim Salter
3,90011133
add a comment |
I had the same problem. Run the following commands in your terminal:
sudo apt-get update
sudo apt-get upgrade
answered 49 mins ago
UbuntuUbuntu
13
add a comment |
If you didn't ever set up a password you do not have to recover it but you just have to create it in System settings/User Account. There, click on Password.
So, let's create a new password that you will use as administrator for upgrading, installations and others. In few words, if you didn't ever create a password, create your password and use it when required.
Greetings, Bagsmi.
edited Apr 27 '14 at 23:45
jkt123
2,6441321
answered Apr 27 '14 at 18:50
user275071user275071
1
He can't run it as root unless he's in single user mode, chroot or another root shell...
– Dominic Hayes
May 1 '16 at 16:38
add a comment |
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3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
OK, there's two parts to this. First, to answer the question you asked:
Reboot into single user mode (see http://www.debuntu.org/recover-root-password-single-user-mode-and-grub if you don't know how) and set the password for root.
However, I don't think that will solve your actual problem. It sounds like the real problem is that the account you normally log in as is not a member of the sudo group - the root account on Ubuntu normally does not have a password, and is not allowed to log in directly. So, instead, I would recommend that you boot into single user mode as outlined above, then issue the following commands:
adduser youraccountname sudo
passwd youraccountname
shutdown -r now
This will make sure that your user is allowed to become root, and will make sure that your user has a password which you can use when prompted. Once the machine finishes rebooting (the third command there), everything should be back to normal.
answered Nov 23 '12 at 23:43
Jim SalterJim Salter
3,90011133
add a comment |
OK, there's two parts to this. First, to answer the question you asked:
Reboot into single user mode (see http://www.debuntu.org/recover-root-password-single-user-mode-and-grub if you don't know how) and set the password for root.
However, I don't think that will solve your actual problem. It sounds like the real problem is that the account you normally log in as is not a member of the sudo group - the root account on Ubuntu normally does not have a password, and is not allowed to log in directly. So, instead, I would recommend that you boot into single user mode as outlined above, then issue the following commands:
adduser youraccountname sudo
passwd youraccountname
shutdown -r now
This will make sure that your user is allowed to become root, and will make sure that your user has a password which you can use when prompted. Once the machine finishes rebooting (the third command there), everything should be back to normal.
answered Nov 23 '12 at 23:43
Jim SalterJim Salter
3,90011133
add a comment |
OK, there's two parts to this. First, to answer the question you asked:
Reboot into single user mode (see http://www.debuntu.org/recover-root-password-single-user-mode-and-grub if you don't know how) and set the password for root.
However, I don't think that will solve your actual problem. It sounds like the real problem is that the account you normally log in as is not a member of the sudo group - the root account on Ubuntu normally does not have a password, and is not allowed to log in directly. So, instead, I would recommend that you boot into single user mode as outlined above, then issue the following commands:
adduser youraccountname sudo
passwd youraccountname
shutdown -r now
This will make sure that your user is allowed to become root, and will make sure that your user has a password which you can use when prompted. Once the machine finishes rebooting (the third command there), everything should be back to normal.
answered Nov 23 '12 at 23:43
Jim SalterJim Salter
3,90011133
OK, there's two parts to this. First, to answer the question you asked:
Reboot into single user mode (see http://www.debuntu.org/recover-root-password-single-user-mode-and-grub if you don't know how) and set the password for root.
However, I don't think that will solve your actual problem. It sounds like the real problem is that the account you normally log in as is not a member of the sudo group - the root account on Ubuntu normally does not have a password, and is not allowed to log in directly. So, instead, I would recommend that you boot into single user mode as outlined above, then issue the following commands:
adduser youraccountname sudo
passwd youraccountname
shutdown -r now
This will make sure that your user is allowed to become root, and will make sure that your user has a password which you can use when prompted. Once the machine finishes rebooting (the third command there), everything should be back to normal.
answered Nov 23 '12 at 23:43
Jim SalterJim Salter
3,90011133
answered Nov 23 '12 at 23:43
Jim SalterJim Salter
3,90011133
answered Nov 23 '12 at 23:43
Jim SalterJim Salter
3,90011133
answered Nov 23 '12 at 23:43
Jim SalterJim Salter
3,90011133
3,90011133
add a comment |
add a comment |
I had the same problem. Run the following commands in your terminal:
sudo apt-get update
sudo apt-get upgrade
answered 49 mins ago
UbuntuUbuntu
13
add a comment |
I had the same problem. Run the following commands in your terminal:
sudo apt-get update
sudo apt-get upgrade
answered 49 mins ago
UbuntuUbuntu
13
add a comment |
I had the same problem. Run the following commands in your terminal:
sudo apt-get update
sudo apt-get upgrade
answered 49 mins ago
UbuntuUbuntu
13
I had the same problem. Run the following commands in your terminal:
sudo apt-get update
sudo apt-get upgrade
answered 49 mins ago
UbuntuUbuntu
13
answered 49 mins ago
UbuntuUbuntu
13
answered 49 mins ago
UbuntuUbuntu
13
answered 49 mins ago
UbuntuUbuntu
13
13
add a comment |
add a comment |
If you didn't ever set up a password you do not have to recover it but you just have to create it in System settings/User Account. There, click on Password.
So, let's create a new password that you will use as administrator for upgrading, installations and others. In few words, if you didn't ever create a password, create your password and use it when required.
Greetings, Bagsmi.
edited Apr 27 '14 at 23:45
jkt123
2,6441321
answered Apr 27 '14 at 18:50
user275071user275071
1
He can't run it as root unless he's in single user mode, chroot or another root shell...
– Dominic Hayes
May 1 '16 at 16:38
add a comment |
If you didn't ever set up a password you do not have to recover it but you just have to create it in System settings/User Account. There, click on Password.
So, let's create a new password that you will use as administrator for upgrading, installations and others. In few words, if you didn't ever create a password, create your password and use it when required.
Greetings, Bagsmi.
edited Apr 27 '14 at 23:45
jkt123
2,6441321
answered Apr 27 '14 at 18:50
user275071user275071
1
He can't run it as root unless he's in single user mode, chroot or another root shell...
– Dominic Hayes
May 1 '16 at 16:38
add a comment |
If you didn't ever set up a password you do not have to recover it but you just have to create it in System settings/User Account. There, click on Password.
So, let's create a new password that you will use as administrator for upgrading, installations and others. In few words, if you didn't ever create a password, create your password and use it when required.
Greetings, Bagsmi.
edited Apr 27 '14 at 23:45
jkt123
2,6441321
answered Apr 27 '14 at 18:50
user275071user275071
1
If you didn't ever set up a password you do not have to recover it but you just have to create it in System settings/User Account. There, click on Password.
So, let's create a new password that you will use as administrator for upgrading, installations and others. In few words, if you didn't ever create a password, create your password and use it when required.
Greetings, Bagsmi.
edited Apr 27 '14 at 23:45
jkt123
2,6441321
answered Apr 27 '14 at 18:50
user275071user275071
1
edited Apr 27 '14 at 23:45
jkt123
2,6441321
edited Apr 27 '14 at 23:45
jkt123
2,6441321
edited Apr 27 '14 at 23:45
jkt123
2,6441321
2,6441321
answered Apr 27 '14 at 18:50
user275071user275071
1
answered Apr 27 '14 at 18:50
user275071user275071
1
answered Apr 27 '14 at 18:50
user275071user275071
1
1
He can't run it as root unless he's in single user mode, chroot or another root shell...
– Dominic Hayes
May 1 '16 at 16:38
add a comment |
He can't run it as root unless he's in single user mode, chroot or another root shell...
– Dominic Hayes
May 1 '16 at 16:38
He can't run it as root unless he's in single user mode, chroot or another root shell...
– Dominic Hayes
May 1 '16 at 16:38
He can't run it as root unless he's in single user mode, chroot or another root shell...
– Dominic Hayes
May 1 '16 at 16:38
add a comment |
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1
The sudo authentication field should stay completely blank as you type. It never displays asterisks, even
– hexafraction
Nov 24 '12 at 0:52
1
How did you set the administrator password to blank? "administrator" is a term used on Windows, on Linux we have a root user, and users with administrator privileges, so it's unclear what you mean.
– Flimm
Nov 26 '12 at 14:33