after compiling the kernel 2.6.18 bash error message & no X Window

[csanyipal <csanyipal@csanyi-pal.info>]

Hello!

My system is Debian Etch.

After I downloaded the new linux-source-2.6.18, compiled it and 
installed the new custom kernel, I get error messages on console prompt 
when logged in:
-bash: id: command not found
-bash: [: : integer expression expected

and after gdm login I get error message that there are errors on 
installation or my disk is full. 

My disk isn't full, I use df -H to see whether my disk is full.

In .xsession-errors are these lines:
---------------------------------------->
/etc/gdm/PreSession/Default: \
    Registering your session with wtmp and utmp
/etc/gdm/PreSession/Default: running: /usr/bin/sessreg -a -w 
/var/log/wtmp -u /var/run/utmp -x \
    "/var/lib/gdm/:0.Xservers" -h "" -l ":0" "csanyipal"
/etc/gdm/Xsession: Beginning session setup...
/etc/gdm/Xsession: line 165: grep: command not found
/etc/gdm/Xsession: line 73: ls: command not found
/etc/gdm/Xsession: Executing /usr/bin/wmaker failed, \
    will try to run x-terminal-emulator
/etc/gdm/Xsession: line 197: exec: x-terminal-emulator: not found
----------------------------------------<

What is the solution for this problem?

I appreciate any advices!

-- 
Regards, Paul Csányi
http://www.freewebs.com/csanyi-pal/index.htm