During an upgrade from 6.1 to 6.2, where /tmp is a symbolic link to
/var/tmp, I get the following message just after I have told it I do not
wish to make any changes to the packages it will install (below text is
copied by hand so there may be some minor errors):

-Exception Occurred-

Traceback (innermost last):
File "/usr/bin/anaconda", line 342 in ? intf.run(todo, test=test)
File "/usr/lib/anaconda/text.py", line 1165 in run rc = apply(step[1](),
step[2])
File "/usr/lib/anaconda/text.py", line 702 in __call__ if todo.doInstall():
File "/tmp/updates/todo.py", line 1163 in do Install()
  self.instLog = open(setl.instPath _ logname, "w+")
IOError: [Errno2] No such file or directory:
'/mnt/sysimage/tmp/upgrade.log'

One solution is to remove the symlink and create a /tmp directory on the /
file system.

It might be nice, however, for anaconda to notice this problem before it
tries to write stuff into that "directory".

I know, I know: "Doctor, doctor, it hurts when I do this", etc.  I think
that such a symlink is common, however.  For me, it prevents / from filling
up when certain lame apps and installers write megabytes to /tmp.