x-session error and can't login to gnome

[gosman]

After I have upgraded to feisty two days,I can't login to gnome and i got a dialog said:
      Your session only lasted less than 10 seconds .If you have not logged out yourself,this could mean that there is some installation problem or that you may be out of diskspace.Try logging in with one of the failsafe sessions to see if you can fix this problem.

The details of ~/.xsession-errors file is:
        /etc/gdm/Presession/Default: Registering your session with wtmp and utmp
        /etc/gdm/Presession/Default: running: /var/X11R6/bin/sessreg -a -w /var/log/wtmp -u /var/run/utmp -X "/var/lib/gdm/:0.Xservers" -h " " -l ":0" "gosman"
        /etc/gdm/Xsession:Beginning session setup...
       /etc/profile:17:id:not found
       /etc/gdm/Xsession:Executing default failed,with try to run x-terminal-emulator
       exec:224:x-terminal-emulator:not found

And i tryed to login to Failsafe gnome, i got a dialog that said:
       Error activating XKB configuration
       It can happen under various circumstances:
       --a bug in libxklavier library
       --a bug in X server (Xkbcomp,xmodmap,utilities)
       --X server with incompatible libxkbfile implemention

        X server version data:
       The X.org Foundation
       70200000

        If you report this situation as a bug,please include:
        --The result of xprop -root | grep XKB
        --The result of gcongtool-2 -R /desktop/gnome/peripherals/keyboard/kbd

i can't execute the command 'xprop -root | grep XKB' in recovery mode,and i got the result of gcongtool-2 -R /desktop/gnome/peripherals/keyboard/kbd is
       layouts = []
       model =
       overridesetting = true
       options = []

My disk in root filesystem is 82% in use,the highest is 93% in use in other partions.And i didn't chang the file /etc/profile everbefore.And nothing in /var/carsh.My CPU is AMD Sempron 2500+ ,Geforce 6100 and
i installed the arch of Ubuntu is i386 not amd64

[Sebastien Bacher (seb128)]

Thank you for your bug. Do you have a .gnomerc?

[gosman (lianmingchang2008)]

Sorry, now I have installed Feisty Fawn form CD，so I couldn't give you
more detail about the problem now . Sorry, Thank you for your reply.

On 4/21/07, Sebastien Bacher <email address hidden> wrote:
>
> Thank you for your bug. Do you have a .gnomerc?
>
> --
> x-session error and can't login to gnome
> https://bugs.launchpad.net/bugs/106667
> You received this bug notification because you are a direct subscriber
> of the bug.
>

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[Sebastien Bacher (seb128)]

Closing the bug then. Feel free to reopen if you get it again