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Old 04-15-2009, 03:46 PM   #1
jonesy29847
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Registered: Apr 2009
Posts: 2

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Ubuntu Administrator Help


Hello,

I just purchased an aspire one and I have installed Ubuntu 8.10. I must have missed something because I don't have sudo privileges, although Administer System is checked under User Settings.

Prior to installation I used Ubuntu Partition editor to remove Linpus.

I would appreciate any assist I can get, but need to resolve soon as I think I may need to reinstall.

Thanks in advance.
 
Old 04-15-2009, 04:35 PM   #2
Disillusionist
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Registered: Aug 2004
Location: England
Distribution: Ubuntu
Posts: 1,038

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reboot.

Interrupt the grub boot process (by pressing Esc)

select the "Recovery mode" boot item

From the recovery menu select:

root Drop to root shell prompt

To set a password for the root account, type:
Code:
passwd root
and enter a password.

Check the sudoers file, type:
Code:
visudo
If sudo is installed, you should see the following file:
Code:
# /etc/sudoers
#
# This file MUST be edited with the 'visudo' command as root.
#
# See the man page for details on how to write a sudoers file.
# Defaults

Defaults !lecture,tty_tickets,!fqdn

# Uncomment to allow members of group sudo to not need a password
# %sudo ALL=NOPASSWD: ALL

# Host alias specification

# User alias specification

# Cmnd alias specification

# User privilege specification
root ALL=(ALL) ALL

# Members of the admin group may gain root priviliges
%admin ALL=(ALL) ALL
press [esc] : q
to exit vi

reboot
 
Old 04-15-2009, 08:38 PM   #3
tommcd
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Registered: Jun 2006
Location: Philadelphia PA USA
Distribution: Lubuntu, Slackware
Posts: 2,230

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Here is a very detailed tutorial on fixing sudo on Ubuntu:
http://www.psychocats.net/ubuntu/fixsudo
 
Old 04-16-2009, 02:24 AM   #4
Disillusionist
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Registered: Aug 2004
Location: England
Distribution: Ubuntu
Posts: 1,038

Rep: Reputation: 97
Nice link

I guess I should have googled before typing.

I do have a couple of points about that link though...

When logged in as root, there is no need to add sudo to the front of the command.

Additionally, I was taught (a long time ago) to always use visudo when editing the /etc/sudoers file, it even says it in the file.

I can't remember if vi is the default editor for visudo on Ubuntu, or whether I changed my default editor. vi is not for the uninitiated so I will assume that it's something I have changed
 
Old 04-16-2009, 08:36 AM   #5
jonesy29847
LQ Newbie
 
Registered: Apr 2009
Posts: 2

Original Poster
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Thanks all!!!

I found my accounts locked and after unlocking them all is well, I suspect this feature is for security. Thanks for the link, I will spend much time there!

Regards
Jonesy
 
  


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