因为刚开始用linux所以很多都不懂，请问大家这该怎么解决啊？？？最好是不要重装系统。谢谢

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
dhcp:x:100:101::/nonexistent:/bin/false
syslog:x:101:102::/home/syslog:/bin/false
klog:x:102:103::/home/klog:/bin/false
messagebus:x:103:107::/var/run/dbus:/bin/false
avahi:x:104:108:Avahi mDNS daemon,,,:/var/run/avahi-daemon:/bin/false
cupsys:x:105:109::/home/cupsys:/bin/false
haldaemon:x:106:110:Hardware abstraction layer,,,:/var/run/hal:/bin/false
gdm:x:108:113:Gnome Display Manager:/var/lib/gdm:/bin/false
exp:x:1000:1000:eexpress,,,:/home/exp:/bin/bash
karrigell:x:109:65534:karrigell daemon,,,:/var/karrigell:/bin/false
postfix:x:110:116::/var/spool/postfix:/bin/false
saned:x:111:118::/home/saned:/bin/false
avahi-autoipd:x:112:119:Avahi autoip daemon,,,:/var/lib/avahi-autoipd:/bin/false
debian-tor:x:113:123::/var/lib/囗囗囗:/bin/bash
囗囗囗囗囗囗囗:x:114:65534::/etc/囗囗囗囗囗囗囗:/bin/false
sshd:x:116:65534::/var/run/sshd:/usr/sbin/nologin
telnetd:x:115:124::/nonexistent:/bin/false
festival:x:117:29::/home/festival:/bin/false
statd:x:118:65534::/var/lib/nfs:/bin/false
ntop:x:119:125::/var/lib/ntop:/bin/false
pulse:x:120:127:PulseAudio daemon,,,:/var/run/pulse:/bin/false
zeroinst:x:121:130::/home/zeroinst:/bin/false
polkituser:x:122:131:PolicyKit,,,:/var/run/PolicyKit:/bin/false
libuuid:x:123:132::/var/lib/libuuid:/bin/sh
mldonkey:x:124:112::/var/lib/mldonkey:/bin/false
mpd:x:107:29::/var/lib/mpd:/bin/false
dhcpd:x:125:134::/nonexistent:/bin/false
按照实际情况，修改你的帐号名。live cd复制过去。