On 02/07/2008 Sven Joachim wrote: > > I've broken my debian/unstable system by executing as root the command > > # srm -r -d /tmp/.* > > Ouch. That seems a good command to run before you sell your hard > disk. ;-)
yes :-/ > > Login as root works without any issues. > > > > When I try to su to a normal user from root, I get: "Cannot execute > > /bin/bash: Permission denied." The permissions for /bin/bash are ok: > > -rwxr-xr-x 1 root root 797784 2008-05-12 19:00 /bin/bash > > It's possible that the PAM modules or their configuration became > corrupt. I setup a clean chroot with the results of 'dpkg --get-selections' and 'debconf-get-selections'. now I'm at comparing md5sums of all files, but so far I didn't find any mismatches except for files that are created at installation/system run time, like initramfs, pyc, doc-base files etc. > > all. And indeed, the system booted without issues, except that the > > services mentioned below didn't start, and the normal user login still > > didn't work as well. > > That's really surprising, I would not have expected the system to come > up at all. yes, I feared that too, but fortunately it worked :-) > > So I started to try to recover the system (I don't have system backups, > > I only backup /home): > > That's bad, you should at least backup /etc. But you know already... yes, now I know better ... > > # /etc/init.d/exim4 start > > Starting MTA:2008-07-01 20:49:06 Exim configuration error in line 662 of > > /var/lib/exim4/config.autogenerated.tmp: > > user mail was not found > > Could you post the contents of your /etc/passwd? Even if that file > exists, it may not contain all users. sure, see below. but I'm pretty sure that no user is missing. And user mail does exist. > > exim: could not open panic log - aborting: see message(s) above > > Invalid new configfile /var/lib/exim4/config.autogenerated.tmp, not > > installing > > /var/lib/exim4/config.autogenerated.tmp to > > /var/lib/exim4/config.autogenerated > > > > # /etc/init.d/gdm start > > Starting GNOME Display Manager: gdmgdm[16973]: WARNING: gdm_config_parse: > > Authdir /var/lib/gdm does not exist. Aborting. > > gdm_config_parse: Authdir /var/lib/gdm does not exist. Aborting. > > Probably you need to recreate the missing directory. No, that directory does exist: # ls -al /var/lib/gdm total 8 drwxr-x--- 2 gdm gdm 4096 2008-05-21 12:41 . drwxr-xr-x 61 root root 4096 2008-06-30 22:17 .. > > # /etc/init.d/mysql start > > Starting MySQL database server: mysqld . . . . . . . . . . . . . . failed! > > > > # tail -n5 /var/log/syslog > > Jul 1 22:55:25 jonas /etc/init.d/mysql[17210]: 0 processes alive and > > '/usr/bin/mysqladmin --defaults-file=/etc/mysql/debian.cnf ping' resulted in > > Jul 1 22:55:25 jonas /etc/init.d/mysql[17210]: /usr/bin/mysqladmin: > > connect to server at 'localhost' failed > > Jul 1 22:55:25 jonas /etc/init.d/mysql[17210]: error: 'Can't connect to > > local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)' > > Jul 1 22:55:25 jonas /etc/init.d/mysql[17210]: Check that mysqld is > > running and that the socket: '/var/run/mysqld/mysqld.sock' exists! > > Jul 1 22:55:25 jonas /etc/init.d/mysql[17210]: > > Does /var/run exist at all? Its absence could explain the failure to > start services that want to put files there. OTOH, it is included in > base-files, so if you reinstalled that package, it should be there. Yes, /var/run exists, and has content for several services: # ls -al /var/run total 132 drwxr-xr-x 22 root root 4096 2008-07-03 09:15 . drwxr-xr-x 16 root root 4096 2008-06-30 20:24 .. srw-rw-rw- 1 root root 0 2008-07-03 09:15 acpid.socket drwxr-xr-x 2 root root 4096 2008-04-11 14:21 apache2 -rw-r--r-- 1 root root 5 2008-07-03 09:15 apache2.pid srw-rw-rw- 1 root root 0 2008-07-03 09:15 atieventsd.socket drwxr-xr-x 2 avahi avahi 4096 2008-07-03 09:15 avahi-daemon drwxr-xr-x 2 root root 4096 2008-06-21 06:25 checksecurity -rw-r--r-- 1 root root 0 2008-07-03 09:15 .clean -rw-r--r-- 1 root root 5 2008-07-03 09:15 crond.pid ---------- 1 root root 0 2008-07-03 09:15 crond.reboot drwxr-xr-x 3 root lp 4096 2008-07-03 09:19 cups drwxr-xr-x 2 messagebus messagebus 4096 2008-07-03 09:15 dbus drwxr-x--- 2 Debian-exim Debian-exim 4096 2008-06-30 17:44 exim4 -rw-r--r-- 1 root root 5 2008-07-03 09:15 gpm.pid drwxr-xr-x 2 haldaemon haldaemon 4096 2008-07-03 09:15 hal drwxr-xr-x 2 identd nogroup 4096 2008-06-14 16:50 identd -rw-r--r-- 1 root root 5 2008-07-03 09:15 inetd.pid drwxr-xr-x 2 root root 4096 2008-06-23 17:47 libvirt drwxrwsr-x 2 root mixmaster 4096 2008-03-07 14:36 mixmaster drwxr-xr-x 2 mysql root 4096 2008-06-30 17:44 mysqld drwxr-xr-x 2 root root 4096 2008-07-03 09:15 network -rw-r--r-- 1 root root 5 2008-07-03 09:15 openvpn.jonas-vpn04.pid drwxr-x--- 2 root root 4096 2008-06-10 04:09 pptp -rw-r--r-- 1 root root 5 2008-07-03 09:15 privoxy.pid drwxr-xr-x 4 pulse pulse 4096 2008-06-30 18:32 pulse drwxr-xr-x 3 root root 4096 2008-07-03 09:21 samba drwxrwxr-x 4 root utmp 4096 2008-07-03 11:14 screen drwxr-xr-x 2 root root 4096 2008-03-22 14:12 sshd -rw-r--r-- 1 root root 5 2008-07-03 09:15 sshd.pid drwx------ 3 root user 4096 1985-01-01 00:00 sudo -rw------- 1 root root 4 2008-07-03 09:15 syslog-ng.pid -rw-r--r-- 1 root root 4 2008-07-03 09:15 system-tools-backends.pid [...] > But subdirectories like exim4 or mysqld could still be missing. see above. > One idea would be to install the cruft package and look for missing > files. Also, examine /etc for recent files: one file or the other might > be truncated by the interrupted srm command. I already ran cruft, and it didn't detect any missing files at all. > And please post a listing of /etc/pam.d. # ls -al /etc/pam.d total 108 drwxr-xr-x 2 root root 4096 2008-07-02 12:21 . drwxr-xr-x 137 root root 12288 2008-07-03 09:15 .. -rw-r--r-- 1 root root 182 2008-01-27 06:34 atd -rw-r--r-- 1 root root 384 2008-01-13 22:37 chfn -rw-r--r-- 1 root root 581 2008-01-13 22:37 chsh -rw-r--r-- 1 root root 392 2008-03-25 18:08 common-account -rw-r--r-- 1 root root 436 2008-03-25 18:08 common-auth -rw-r--r-- 1 root root 1212 2008-03-25 18:08 common-password -rw-r--r-- 1 root root 372 2008-03-25 18:08 common-session -rw-r--r-- 1 root root 289 2008-03-14 01:52 cron -rw-r--r-- 1 root root 69 2008-04-02 02:46 cups -rw-r--r-- 1 root root 400 2008-05-21 12:39 gdm -rw-r--r-- 1 root root 316 2008-05-21 12:39 gdm-autologin -rw-r--r-- 1 root root 56 2008-03-19 11:31 gnome-screensaver -rw-r--r-- 1 root root 2843 2008-01-13 22:37 login -rw-r--r-- 1 root root 38 2008-04-03 06:38 newrole -rw-r--r-- 1 root root 520 2007-08-27 04:16 other -rw-r--r-- 1 root root 92 2008-01-13 22:37 passwd -rw-r--r-- 1 root root 168 2007-04-14 03:22 ppp -rw-r--r-- 1 root root 38 2008-04-03 06:38 run_init -rw-r--r-- 1 root root 69 2008-03-15 16:34 samba -rw-r--r-- 1 root root 1199 2008-01-21 11:16 schroot -rw-r--r-- 1 root root 1272 2008-03-22 14:09 sshd -rw-r--r-- 1 root root 2305 2008-01-13 22:37 su -rw-r--r-- 1 root root 119 2008-02-19 03:40 sudo # cat /etc/passwd root:x:0:0:root:/root:/bin/bash daemon:x:1:1:daemon:/usr/sbin:/bin/sh bin:x:2:2:bin:/bin:/bin/sh sys:x:3:3:sys:/dev:/bin/sh sync:x:4:65534:sync:/bin:/bin/sync games:x:5:60:games:/usr/games:/bin/sh man:x:6:12:man:/var/cache/man:/bin/sh lp:x:7:7:lp:/var/spool/lpd:/bin/sh mail:x:8:8:mail:/var/mail:/bin/sh news:x:9:9:news:/var/spool/news:/bin/sh uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh proxy:x:13:13:proxy:/bin:/bin/sh www-data:x:33:33:www-data:/var/www:/bin/sh backup:x:34:34:backup:/var/backups:/bin/sh list:x:38:38:Mailing List Manager:/var/list:/bin/sh irc:x:39:39:ircd:/var/run/ircd:/bin/sh gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh nobody:x:65534:65534:nobody:/nonexistent:/bin/sh libuuid:x:100:101::/var/lib/libuuid:/bin/sh Debian-exim:x:101:103::/var/spool/exim4:/bin/false statd:x:102:65534::/var/lib/nfs:/bin/false identd:x:103:65534::/var/run/identd:/bin/false mixmaster:x:104:106:Anonymous Remailer,,,:/var/lib/mixmaster:/bin/bash messagebus:x:105:107::/var/run/dbus:/bin/false haldaemon:x:106:108:Hardware abstraction layer,,,:/var/run/hal:/bin/false saned:x:108:113::/home/saned:/bin/false sshd:x:109:65534::/var/run/sshd:/usr/sbin/nologin vde2-net:x:111:120::/var/run/vde2:/bin/false mysql:x:112:121:MySQL Server,,,:/var/lib/mysql:/bin/false privoxy:x:113:65534::/etc/privoxy:/bin/false debian-tor:x:114:122::/var/lib/tor:/bin/bash avahi:x:110:115:Avahi mDNS daemon,,,:/var/run/avahi-daemon:/bin/false nagios:x:115:125::/var/run/nagios3:/bin/false pulse:x:117:127:PulseAudio daemon,,,:/var/run/pulse:/bin/false gdm:x:107:110:Gnome Display Manager:/var/lib/gdm:/bin/false tempuser:x:1002:1002:,,,:/home/tempuser:/bin/bash greetings, jonas -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". 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