[RISOLTO]non ho più i permessi di amministratore

[fau74]

Ho combinato un casino con i permessi di amministratore, togliendomi accidentalmente i permessi. Adesso non posso più usare il comando sudo che mi riporta l'errore "is not in the sudoers file", e su utenti e gruppi non mi accetta più la password per cambiare i permessi. Leggendo sul forum ho provato ad entrare nel recovery mode e a digitare il comando "adduser XXX admin", ma mi ritorna l'errore "gpasswd: cannot lock /etc/group/" e non riesco a riottenere i privilegi di amministratore. Qualcuno mi sa aiutare? Preciso che ho l'ultima versione di ubuntu, la 11.10. Ringrazio anticipatamente.

[steff]

Dovrebbe funzionare come hai fatto. Hai fatto altre modifiche in /etc? Posta

Codice: Seleziona tutto

ls -l /etc/group*

[fau74]

fau@fau-Extensa-5230:~$ ls -l /etc/group
-rw-r--r-- 1 root root 909 2011-10-19 10:43 /etc/group
fau@fau-Extensa-5230:~$

Immagino che se non riesco a risolvere il problema non posso più aggiornare il sistema, giusto?

[Carlin0]

Ciao

Puoi provare sempre da recovery mode questo comando da root

Codice: Seleziona tutto

usermod -G admin nomeutente

sostituendo il nomeutente col tuo ovviamente

[steff]

Ci deve essere un file lock o lck penso. Posta

Codice: Seleziona tutto

ls -l /etc | grep lock

Idem:

Codice: Seleziona tutto

 ls -l /etc | grep tmp

[fau74]

Per Carlin0:
nienta da fare. Mi da "cannot lock /etc/passwd. try again later"

Per Steff

fau@fau-Extensa-5230:~$ ls -l /etc | grep lock
-rw-------  1 root fau        0 2011-04-30 21:06 mtab.fuselock
fau@fau-Extensa-5230:~$  ls -l /etc | grep tmp
fau@fau-Extensa-5230:~$

[steff]

Cavolo ma ci deve essere uno...

Codice: Seleziona tutto

cat /var/log/auth.log

postalo.

EDIT: hai provati i comandi precedenti in recovery mode? Un ulteriore trucco potrebbe essere di modificare i file da cd live, o sudoers o /etc/group

[fau74]

Codice: Seleziona tutto

[quote]Oct 20 22:24:58 fau-Extensa-5230 lightdm: pam_unix(lightdm-autologin:session): session opened for user fau by (uid=0)
Oct 20 22:24:58 fau-Extensa-5230 lightdm: pam_ck_connector(lightdm-autologin:session): nox11 mode, ignoring PAM_TTY :0
Oct 20 22:25:04 fau-Extensa-5230 polkitd(authority=local): Registered Authentication Agent for unix-session:/org/freedesktop/ConsoleKit/Session1 (system bus name :1.30 [/usr/lib/policykit-1-gnome/polkit-gnome-authentication-agent-1], object path /org/gnome/PolicyKit1/AuthenticationAgent, locale it_IT.UTF-8)
Oct 20 22:25:07 fau-Extensa-5230 gnome-keyring-prompt: could not grab keyboard: not viewable
Oct 20 22:25:07 fau-Extensa-5230 gnome-keyring-prompt: could not grab keyboard: not viewable
Oct 20 22:25:14 fau-Extensa-5230 dbus[853]: [system] Rejected send message, 2 matched rules; type="method_call", sender=":1.37" (uid=1000 pid=1516 comm="/usr/lib/indicator-datetime/indicator-datetime-ser") interface="org.freedesktop.DBus.Properties" member="GetAll" error name="(unset)" requested_reply="0" destination=":1.12" (uid=0 pid=1149 comm="/usr/sbin/console-kit-daemon --no-daemon ")
Oct 20 22:26:25 fau-Extensa-5230 sudo:      fau : user NOT in sudoers ; TTY=pts/0 ; PWD=/home/fau ; USER=root ; COMMAND=/usr/bin/nautilus
Oct 20 22:26:25 fau-Extensa-5230 sudo: cannot execute /usr/sbin/sendmail: File o directory non esistente
Oct 20 23:01:23 fau-Extensa-5230 polkitd(authority=local): Unregistered Authentication Agent for unix-session:/org/freedesktop/ConsoleKit/Session1 (system bus name :1.30, object path /org/gnome/PolicyKit1/AuthenticationAgent, locale it_IT.UTF-8) (disconnected from bus)
Oct 20 23:03:17 fau-Extensa-5230 lightdm: pam_unix(lightdm-autologin:session): session opened for user fau by (uid=0)
Oct 20 23:03:17 fau-Extensa-5230 lightdm: pam_ck_connector(lightdm-autologin:session): nox11 mode, ignoring PAM_TTY :0
Oct 20 23:03:22 fau-Extensa-5230 polkitd(authority=local): Registered Authentication Agent for unix-session:/org/freedesktop/ConsoleKit/Session1 (system bus name :1.31 [/usr/lib/policykit-1-gnome/polkit-gnome-authentication-agent-1], object path /org/gnome/PolicyKit1/AuthenticationAgent, locale it_IT.UTF-8)
Oct 20 23:03:25 fau-Extensa-5230 gnome-keyring-prompt: could not grab keyboard: not viewable
Oct 20 23:03:25 fau-Extensa-5230 gnome-keyring-prompt: could not grab keyboard: not viewable
Oct 20 23:03:27 fau-Extensa-5230 pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Oct 20 23:03:27 fau-Extensa-5230 pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device
Oct 20 23:03:27 fau-Extensa-5230 pkexec[1846]: fau: Executing command [USER=root] [TTY=unknown] [CWD=/home/fau] [COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-brightness 2]
Oct 20 23:03:27 fau-Extensa-5230 pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Oct 20 23:03:27 fau-Extensa-5230 pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device
Oct 20 23:03:27 fau-Extensa-5230 pkexec[1854]: fau: Executing command [USER=root] [TTY=unknown] [CWD=/home/fau] [COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-brightness 9]
Oct 20 23:03:28 fau-Extensa-5230 dbus[1124]: [system] Rejected send message, 2 matched rules; type="method_call", sender=":1.39" (uid=1000 pid=1802 comm="/usr/lib/indicator-datetime/indicator-datetime-ser") interface="org.freedesktop.DBus.Properties" member="GetAll" error name="(unset)" requested_reply="0" destination=":1.12" (uid=0 pid=1431 comm="/usr/sbin/console-kit-daemon --no-daemon ")
Oct 20 23:03:47 fau-Extensa-5230 pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Oct 20 23:03:47 fau-Extensa-5230 pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device
Oct 20 23:03:47 fau-Extensa-5230 pkexec[2036]: fau: Executing command [USER=root] [TTY=unknown] [CWD=/home/fau] [COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-brightness 2]
Oct 20 23:03:50 fau-Extensa-5230 pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Oct 20 23:03:50 fau-Extensa-5230 pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device
Oct 20 23:03:50 fau-Extensa-5230 pkexec[2053]: fau: Executing command [USER=root] [TTY=unknown] [CWD=/home/fau] [COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-brightness 9]
Oct 20 23:05:22 fau-Extensa-5230 pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Oct 20 23:05:22 fau-Extensa-5230 pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device
Oct 20 23:05:22 fau-Extensa-5230 pkexec[2188]: fau: Executing command [USER=root] [TTY=unknown] [CWD=/home/fau] [COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-brightness 2]
Oct 20 23:05:27 fau-Extensa-5230 pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Oct 20 23:05:27 fau-Extensa-5230 pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device
Oct 20 23:05:27 fau-Extensa-5230 pkexec[2195]: fau: Executing command [USER=root] [TTY=unknown] [CWD=/home/fau] [COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-brightness 9]
Oct 20 23:06:54 fau-Extensa-5230 pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Oct 20 23:06:54 fau-Extensa-5230 pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device
Oct 20 23:06:54 fau-Extensa-5230 pkexec[2202]: fau: Executing command [USER=root] [TTY=unknown] [CWD=/home/fau] [COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-brightness 2]
Oct 20 23:07:00 fau-Extensa-5230 pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Oct 20 23:07:00 fau-Extensa-5230 pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device
Oct 20 23:07:00 fau-Extensa-5230 pkexec[2204]: fau: Executing command [USER=root] [TTY=unknown] [CWD=/home/fau] [COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-brightness 9]
Oct 20 23:09:26 fau-Extensa-5230 pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Oct 20 23:09:26 fau-Extensa-5230 pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device
Oct 20 23:09:26 fau-Extensa-5230 pkexec[2229]: fau: Executing command [USER=root] [TTY=unknown] [CWD=/home/fau] [COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-brightness 2]
Oct 20 23:09:32 fau-Extensa-5230 pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Oct 20 23:09:32 fau-Extensa-5230 pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device
Oct 20 23:09:32 fau-Extensa-5230 pkexec[2231]: fau: Executing command [USER=root] [TTY=unknown] [CWD=/home/fau] [COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-brightness 9]
Oct 20 23:09:54 fau-Extensa-5230 pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Oct 20 23:09:54 fau-Extensa-5230 pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device
Oct 20 23:09:54 fau-Extensa-5230 pkexec[2235]: fau: Executing command [USER=root] [TTY=unknown] [CWD=/home/fau] [COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-brightness 2]
Oct 20 23:10:20 fau-Extensa-5230 pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Oct 20 23:10:20 fau-Extensa-5230 pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device
Oct 20 23:10:20 fau-Extensa-5230 pkexec[2238]: fau: Executing command [USER=root] [TTY=unknown] [CWD=/home/fau] [COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-brightness 9]
Oct 20 23:12:22 fau-Extensa-5230 pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Oct 20 23:12:22 fau-Extensa-5230 pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device
Oct 20 23:12:22 fau-Extensa-5230 pkexec[2242]: fau: Executing command [USER=root] [TTY=unknown] [CWD=/home/fau] [COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-brightness 2]
Oct 20 23:12:23 fau-Extensa-5230 pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Oct 20 23:12:23 fau-Extensa-5230 pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device
Oct 20 23:12:23 fau-Extensa-5230 pkexec[2244]: fau: Executing command [USER=root] [TTY=unknown] [CWD=/home/fau] [COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-brightness 9]
Oct 20 23:17:01 fau-Extensa-5230 CRON[2336]: pam_unix(cron:session): session opened for user root by (uid=0)
Oct 20 23:17:01 fau-Extensa-5230 CRON[2336]: pam_unix(cron:session): session closed for user root
Oct 20 23:17:27 fau-Extensa-5230 pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Oct 20 23:17:27 fau-Extensa-5230 pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device
Oct 20 23:17:27 fau-Extensa-5230 pkexec[2341]: fau: Executing command [USER=root] [TTY=unknown] [CWD=/home/fau] [COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-brightness 2]
Oct 20 23:17:37 fau-Extensa-5230 pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Oct 20 23:17:37 fau-Extensa-5230 pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device
Oct 20 23:17:37 fau-Extensa-5230 pkexec[2343]: fau: Executing command [USER=root] [TTY=unknown] [CWD=/home/fau] [COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-brightness 9]
Oct 20 23:18:21 fau-Extensa-5230 pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Oct 20 23:18:21 fau-Extensa-5230 pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device
Oct 20 23:18:21 fau-Extensa-5230 pkexec[2347]: fau: Executing command [USER=root] [TTY=unknown] [CWD=/home/fau] [COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-brightness 2]
Oct 20 23:18:27 fau-Extensa-5230 pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Oct 20 23:18:27 fau-Extensa-5230 pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device
Oct 20 23:18:27 fau-Extensa-5230 pkexec[2349]: fau: Executing command [USER=root] [TTY=unknown] [CWD=/home/fau] [COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-brightness 9]
Oct 20 23:19:57 fau-Extensa-5230 pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Oct 20 23:19:57 fau-Extensa-5230 pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device
Oct 20 23:19:57 fau-Extensa-5230 pkexec[2386]: fau: Executing command [USER=root] [TTY=unknown] [CWD=/home/fau] [COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-brightness 2]
Oct 20 23:20:01 fau-Extensa-5230 pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Oct 20 23:20:01 fau-Extensa-5230 pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device
Oct 20 23:20:01 fau-Extensa-5230 pkexec[2388]: fau: Executing command [USER=root] [TTY=unknown] [CWD=/home/fau] [COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-brightness 9]
Oct 20 23:20:27 fau-Extensa-5230 pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Oct 20 23:20:27 fau-Extensa-5230 pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device
Oct 20 23:20:27 fau-Extensa-5230 pkexec[2406]: fau: Executing command [USER=root] [TTY=unknown] [CWD=/home/fau] [COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-brightness 2]
Oct 20 23:20:30 fau-Extensa-5230 pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Oct 20 23:20:30 fau-Extensa-5230 pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device
Oct 20 23:20:30 fau-Extensa-5230 pkexec[2408]: fau: Executing command [USER=root] [TTY=unknown] [CWD=/home/fau] [COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-brightness 9]
Oct 20 23:21:27 fau-Extensa-5230 pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Oct 20 23:21:27 fau-Extensa-5230 pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device
Oct 20 23:21:27 fau-Extensa-5230 pkexec[2424]: fau: Executing command [USER=root] [TTY=unknown] [CWD=/home/fau] [COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-brightness 2]
Oct 20 23:21:45 fau-Extensa-5230 pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Oct 20 23:21:45 fau-Extensa-5230 pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device
Oct 20 23:21:45 fau-Extensa-5230 pkexec[2426]: fau: Executing command [USER=root] [TTY=unknown] [CWD=/home/fau] [COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-brightness 9]
Oct 20 23:22:04 fau-Extensa-5230 pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Oct 20 23:22:04 fau-Extensa-5230 pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device
Oct 20 23:22:04 fau-Extensa-5230 pkexec[2430]: fau: Executing command [USER=root] [TTY=unknown] [CWD=/home/fau] [COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-brightness 2]
Oct 20 23:22:22 fau-Extensa-5230 pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Oct 20 23:22:22 fau-Extensa-5230 pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device
Oct 20 23:22:22 fau-Extensa-5230 pkexec[2433]: fau: Executing command [USER=root] [TTY=unknown] [CWD=/home/fau] [COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-brightness 9]
Oct 20 23:23:35 fau-Extensa-5230 pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Oct 20 23:23:35 fau-Extensa-5230 pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device
Oct 20 23:23:35 fau-Extensa-5230 pkexec[2478]: fau: Executing command [USER=root] [TTY=unknown] [CWD=/home/fau] [COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-brightness 2]
Oct 20 23:23:41 fau-Extensa-5230 pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Oct 20 23:23:41 fau-Extensa-5230 pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device
Oct 20 23:23:41 fau-Extensa-5230 pkexec[2486]: fau: Executing command [USER=root] [TTY=unknown] [CWD=/home/fau] [COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-brightness 9]
Oct 20 23:24:08 fau-Extensa-5230 pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Oct 20 23:24:08 fau-Extensa-5230 pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device
Oct 20 23:24:08 fau-Extensa-5230 pkexec[2490]: fau: Executing command [USER=root] [TTY=unknown] [CWD=/home/fau] [COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-brightness 2]
Oct 20 23:24:09 fau-Extensa-5230 pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Oct 20 23:24:09 fau-Extensa-5230 pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device
Oct 20 23:24:09 fau-Extensa-5230 pkexec[2492]: fau: Executing command [USER=root] [TTY=unknown] [CWD=/home/fau] [COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-brightness 9]
Oct 20 23:24:23 fau-Extensa-5230 pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Oct 20 23:24:23 fau-Extensa-5230 pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device
Oct 20 23:24:23 fau-Extensa-5230 pkexec[2496]: fau: Executing command [USER=root] [TTY=unknown] [CWD=/home/fau] [COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-brightness 2]
Oct 20 23:24:26 fau-Extensa-5230 pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Oct 20 23:24:26 fau-Extensa-5230 pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device
Oct 20 23:24:26 fau-Extensa-5230 pkexec[2498]: fau: Executing command [USER=root] [TTY=unknown] [CWD=/home/fau] [COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-brightness 9]
Oct 20 23:25:07 fau-Extensa-5230 pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Oct 20 23:25:07 fau-Extensa-5230 pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device
Oct 20 23:25:07 fau-Extensa-5230 pkexec[2502]: fau: Executing command [USER=root] [TTY=unknown] [CWD=/home/fau] [COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-brightness 2]
Oct 20 23:25:15 fau-Extensa-5230 pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Oct 20 23:25:15 fau-Extensa-5230 pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device
Oct 20 23:25:15 fau-Extensa-5230 pkexec[2504]: fau: Executing command [USER=root] [TTY=unknown] [CWD=/home/fau] [COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-brightness 9]
Oct 20 23:25:25 fau-Extensa-5230 pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Oct 20 23:25:25 fau-Extensa-5230 pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device
Oct 20 23:25:25 fau-Extensa-5230 pkexec[2508]: fau: Executing command [USER=root] [TTY=unknown] [CWD=/home/fau] [COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-brightness 2]
Oct 20 23:25:29 fau-Extensa-5230 pkexec: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Oct 20 23:25:29 fau-Extensa-5230 pkexec: pam_ck_connector(polkit-1:session): cannot determine display-device
Oct 20 23:25:29 fau-Extensa-5230 pkexec[2510]: fau: Executing command [USER=root] [TTY=unknown] [CWD=/home/fau] [COMMAND=/usr/lib/gnome-settings-daemon/gsd-backlight-helper --set-brightness 9][/quote]

E' solo un pezzo di quello che è venuto fuori, non ci stava tutto sul terminale.

[steff]

I comandi precedenti per cercare il file lock hai dato da root in recovery mode? Riprova.

[fau74]

li ho dati dal terminale, dovevo darli da recorery mode?

[fau74]

stessi messaggi anche da recovery.
Il comando da recovery "adduser fau admin" oltre a dirmi quello chen ho già riportato all'inizio del post mi dà anche
"usr/bin/gpasswd -a fau admin" ha riportato l'errore codice 1
nel caso possa servire

EDIT
riposto il primo comando (non mi ero accorto dell'asterisco)

fau@fau-Extensa-5230:~$ ls -l /etc/group*
-rw-r--r-- 1 root root 909 2011-10-19 10:43 /etc/group
-rw------- 1 root root 909 2011-10-15 22:15 /etc/group-
fau@fau-Extensa-5230:~$

[steff]

Strano quel group-, prova di spostarlo sempre in recovery mode:

Codice: Seleziona tutto

mv /etc/group- /root
gpasswd -a utente admin

[fau74]

niet! quanto al primo comando mi dice che il file system è in sola lettura, al secondo il solito cannot lock /etc/group

[steff]

Ah ecco perché non può farlo! In  solo lettura non può mica scrivere il file di lock 

Forse c'è un comando remount rw ma non ne sono pratico, ma puoi entrare in chroot  da cd/usb live, mettendo il numero della partizione del sistema al posto di sdXY
Dai

Codice: Seleziona tutto

sudo fdisk -l

per vedere qual'è poi

Codice: Seleziona tutto

sudo mount /dev/sdXY /mnt
mount --bind /dev /mnt/dev
sudo mount --bind /proc /mnt/proc
sudo mount --bind /sys /mnt/sys
sudo chroot /mnt
gpasswd -a utente admin
exit
cd ~
sudo umount /mnt/dev
sudo umount /mnt/proc
sudo umount /mnt/sys
sudo umount /mnt/

[fau74]

oh mammma! che casino! ricapitolando uso il cd live, apro il terminale e dò questi comandi giusto? e l'ondina dopo il cd come si fa?

[fau74]

F U N Z I O N A A A A !!!!!! (good) (good) (good)
Ti ringrazio infinitamente  (b2b)

[steff]

Bene, ma devo indagare un  po' sul fatto che monta il filesystem in solo lettura in recovery mode, non sei il primo.

[fau74]

Se può essere utile ho aggiornato alla 11.10 dalla 11.04 che era stata installata da zero. Ho un dual boot con windows vista. Ho partizionato in due partizioni ubuntu, una di boot con il sistema operativo e l'altra come /home.

[steff]

Ecco, trovato l'inghippo: se passi direttamente al root prompt in modalità ripristino è in read-only, si deve prima selezionare remount poi root o netroot (con connnessione).