UBUNTU Superuser Authentication

Superuser Authentication Failure

 Jan Hülsbergen said on 2006-03-17:

Did you use the password to login as jebedee or as root?

Normally, Ubuntu disables the root account and encourages you to use sudo (and your users password) for actions that need root rights. If you need a full root shell, you can use 'sudo -i'.

For su to work, you first have to create a password specificaly for root using 'sudo passwd'.

HTH

 Jack Jebedee said on 2006-03-17:

Thanks for the heads-up, Jan. I just finished re-reading RootSudo in the Wiki and (Bonk!) now I know what it's talking about. My adventure involves installing the latest Opera (my favorite!) web browser and the Opera docs specified the SU command. I'll try it again when I get home, but I'll use SUDO instead. I appreciate your good advice, Jan.

 Contoh Copy file :
quadra@quadra1057-laptop:~/Desktop/xmmskin$ sudo cp nixamp2.tar.gz /usr/share/xmms/Skins/

Artinya:

Copy file "nixamp2.tar.gz" dari direktori "Desktop" ke direktori "/usr/share/xmms/Skins/".
Karena folder "/usr/share/xmms/Skins/" adalah foldernya "quadra", pada saat proses copy  akan ditanyakan password (password dari "quadra").

 Link kumpulan skin XMMS :
http://piotrkosoft.netinet.net/pub/mirrors/xmms/Skins/

Contoh cara masuk ke "Star Up" folder :

 quadra@quadra1057-laptop:~$ cd /etc

quadra@quadra1057-laptop:/etc$ cd rc5.d

quadra@quadra1057-laptop:/etc/rc5.d$ ls -al

total 12
drwxr-xr-x   2 root root 4096 2007-04-15 19:01 .
drwxr-xr-x 114 root root 4096 2007-06-24 16:50 ..
-rw-r--r--   1 root root  556 2007-04-11 04:46 README
lrwxrwxrwx   1 root root   17 2007-06-23 15:14 S05vbesave -> ../init.d/vbesave
lrwxrwxrwx   1 root root   15 2007-06-23 15:14 S10acpid -> ../init.d/acpid
lrwxrwxrwx   1 root root   18 2007-06-23 15:14 S10sysklogd -> ../init.d/sysklogd
lrwxrwxrwx   1 root root   34 2007-06-23 15:14 S10xserver-xorg-input-wacom -> ../init.d/xserver-xorg-input-wacom
lrwxrwxrwx   1 root root   15 2007-06-23 15:14 S11klogd -> ../init.d/klogd
lrwxrwxrwx   1 root root   14 2007-06-23 15:14 S12dbus -> ../init.d/dbus
lrwxrwxrwx   1 root root   13 2007-06-23 15:14 S13gdm -> ../init.d/gdm
lrwxrwxrwx   1 root root   16 2007-06-23 15:14 S19cupsys -> ../init.d/cupsys
lrwxrwxrwx   1 root root   15 2007-06-23 15:14 S19hplip -> ../init.d/hplip
lrwxrwxrwx   1 root root   14 2007-06-23 15:14 S20apmd -> ../init.d/apmd
lrwxrwxrwx   1 root root   16 2007-06-23 15:14 S20apport -> ../init.d/apport
lrwxrwxrwx   1 root root   22 2007-06-23 15:14 S20hotkey-setup -> ../init.d/hotkey-setup
lrwxrwxrwx   1 root root   17 2007-06-23 15:14 S20makedev -> ../init.d/makedev
lrwxrwxrwx   1 root root   23 2007-06-23 15:14 S20nvidia-kernel -> ../init.d/nvidia-kernel
lrwxrwxrwx   1 root root   19 2007-06-23 15:14 S20powernowd -> ../init.d/powernowd
lrwxrwxrwx   1 root root   15 2007-06-23 15:14 S20rsync -> ../init.d/rsync
lrwxrwxrwx   1 root root   19 2007-06-23 15:14 S25bluetooth -> ../init.d/bluetooth
lrwxrwxrwx   1 root root   17 2007-06-23 15:14 S89anacron -> ../init.d/anacron
lrwxrwxrwx   1 root root   13 2007-06-23 15:14 S89atd -> ../init.d/atd
lrwxrwxrwx   1 root root   14 2007-06-23 15:14 S89cron -> ../init.d/cron
lrwxrwxrwx   1 root root   24 2007-06-23 15:14 S90binfmt-support -> ../init.d/binfmt-support
lrwxrwxrwx   1 root root   17 2007-06-23 15:14 S98usplash -> ../init.d/usplash
lrwxrwxrwx   1 root root   22 2007-06-23 15:14 S99acpi-support -> ../init.d/acpi-support
lrwxrwxrwx   1 root root   18 2007-06-23 15:14 S99rc.local -> ../init.d/rc.local
lrwxrwxrwx   1 root root   19 2007-06-23 15:14 S99rmnologin -> ../init.d/rmnologin