cd, nothing. Only shell built-ins such as
echoworked, and only if you were already logged in.
Our support contact finally told us to look at permissions for the root of the file system:
root@mahler:/# ls -ld /
drwx------ 21 root root 4096 2009-01-22 19:27 /
A big "WTF!" Clearly, someone fat fingered a
By now you have guessed the solution:
# chmod 755 /