This recipe should permit reproducing the crashes from your intrepid system; if you can confirm this to be the case, we can go from there on trying to get debugging information out of it.
$ sudo chroot /media/disk su <username>
$ sudo -s
where <username> is the name of your admin user on the Ubuntu 8.10 install.
That will let us see if sudo is crashing within the 8.10 installation.
Walter,
This recipe should permit reproducing the crashes from your intrepid system; if you can confirm this to be the case, we can go from there on trying to get debugging information out of it.
$ sudo chroot /media/disk su <username>
$ sudo -s
where <username> is the name of your admin user on the Ubuntu 8.10 install.
That will let us see if sudo is crashing within the 8.10 installation.