[SOLVED] sudo doesnt work

Question

Hi guys,
I'm having the strangest issues since my last installation of archlinux. First I could not login into any tty (after entering the username, nothing happened). I could solve that by installing the util-linux package. Now I cannot use sudo.
The user is in the group wheel (which is uncommented in sudoers). I have changed nothing in the sudoers file, here's the content:
## sudoers file.
## This file MUST be edited with the 'visudo' command as root.
## Failure to use 'visudo' may result in syntax or file permission errors
## that prevent sudo from running.
## See the sudoers man page for the details on how to write a sudoers file.
## Host alias specification
## Groups of machines. These may include host names (optionally with wildcards),
## IP addresses, network numbers or netgroups.
# Host_Alias WEBSERVERS = www1, www2, www3
## User alias specification
## Groups of users. These may consist of user names, uids, Unix groups,
## or netgroups.
# User_Alias ADMINS = millert, dowdy, mikef
## Cmnd alias specification
## Groups of commands. Often used to group related commands together.
# Cmnd_Alias PROCESSES = /usr/bin/nice, /bin/kill, /usr/bin/renice, \
# /usr/bin/pkill, /usr/bin/top
## Defaults specification
## You may wish to keep some of the following environment variables
## when running commands via sudo.
## Locale settings
# Defaults env_keep += "LANG LANGUAGE LINGUAS LC_* _XKB_CHARSET"
## Run X applications through sudo; HOME is used to find the
## .Xauthority file. Note that other programs use HOME to find
## configuration files and this may lead to privilege escalation!
# Defaults env_keep += "HOME"
## X11 resource path settings
# Defaults env_keep += "XAPPLRESDIR XFILESEARCHPATH XUSERFILESEARCHPATH"
## Desktop path settings
# Defaults env_keep += "QTDIR KDEDIR"
## Allow sudo-run commands to inherit the callers' ConsoleKit session
# Defaults env_keep += "XDG_SESSION_COOKIE"
## Uncomment to enable special input methods. Care should be taken as
## this may allow users to subvert the command being run via sudo.
# Defaults env_keep += "XMODIFIERS GTK_IM_MODULE QT_IM_MODULE QT_IM_SWITCHER"
## Uncomment to enable logging of a command's output, except for
## sudoreplay and reboot. Use sudoreplay to play back logged sessions.
# Defaults log_output
# Defaults!/usr/bin/sudoreplay !log_output
# Defaults!/usr/local/bin/sudoreplay !log_output
# Defaults!/sbin/reboot !log_output
## Runas alias specification
## User privilege specification
root ALL=(ALL) ALL
## Uncomment to allow members of group wheel to execute any command
%wheel ALL=(ALL) ALL
## Same thing without a password
# %wheel ALL=(ALL) NOPASSWD: ALL
## Uncomment to allow members of group sudo to execute any command
# %sudo ALL=(ALL) ALL
## Uncomment to allow any user to run sudo if they know the password
## of the user they are running the command as (root by default).
# Defaults targetpw # Ask for the password of the target user
# ALL ALL=(ALL) ALL # WARNING: only use this together with 'Defaults targetpw'
## Read drop-in files from /etc/sudoers.d
## (the '#' here does not indicate a comment)
#includedir /etc/sudoers.d
In the auth.log there are following lines which seem to be important:
Jul 12 13:46:18 localhost sudo: PAM _pam_init_handlers: no default config /etc/pam.d/other
Jul 12 13:46:21 localhost sudo: PAM no modules loaded for `sudo' service
Jul 12 13:46:22 localhost sudo: pam_unix(sudo:auth): conversation failed
Jul 12 13:46:22 localhost sudo: pam_unix(sudo:auth): auth could not identify password for [archUser]
Jul 12 13:46:22 localhost sudo: archUser: 1 incorrect password attempt ; TTY=pts/2 ; PWD=/home/archUser; USER=root ; COMMAND=/usr/bin/pacman -Syyuu
So I looked up the content of /etc/pam.d/sudo:
root@arch /etc/pam.d # cat sudo
#%PAM-1.0
auth required pam_unix.so
auth required pam_nologin.so
The files pam_unix.so and pam_nologin.so are both saved in /usr/lib/security.
I noticed that if I enter the password wrong, I need to wait one or two seconds before I can try it again (this behaviour seems to be normal). But when I enter the password correct, there is no waiting time and I can enter the pass again.
I have no idea what to do and hope that anyone can help me to use sudo again.
4 years ago, after installing archlinux the first time, I had not a single error. Everything worked just fine but now I get two errors at once after the installation!
--blackdeagle
Last edited by blackdeagle (2012-07-12 14:05:53)

Answer 1

blackdeagle wrote:
65kid wrote:
blackdeagle wrote:Please stay away from my thread! I don't need people like you telling me to search the forums and which parameters I can use and which not!
seriously? it is stated in multiple news, the wiki and in about every third forum thread that you shouldn't use force unless you know exactly what you are doing or you are explicitly told to use it. I don't blame you that you didn't notice this, a lot of people don't (unfortunately). But when people correct you and want to help you are like "whatever, I do what I want! go away!" ???
And what do you think the search function is for?
Please stay away from Arch... geez...
Come on, do you seriously think you are the only one using the search function? Show me some threads with the solution for my issue!
https://bbs.archlinux.org/viewtopic.php?id=143335
https://bbs.archlinux.org/viewtopic.php?id=144079
https://bbs.archlinux.org/viewtopic.php?id=143487
https://bbs.archlinux.org/viewtopic.php?id=142729
https://bbs.archlinux.org/viewtopic.php?id=142720
https://bbs.archlinux.org/viewtopic.php?id=142941
https://bbs.archlinux.org/viewtopic.php?id=144599