Hello Jim,

You could have a buffer with only these three lines or you could place
the three lines at the end of the current .emacs buffer as you want.

eval-buffer remains silent if it considers the buffer as correct.
Otherwise, if an error is met, it beeps and an error message is
displayed in the bottom line, the so called minibuffer. 
As listed in the overview of Emacspeak (C-h C-e), it is possible to
ask to Emacspeak to say the message using C-e a

Yes, saveconfig must be called to save the new preferences. 

Just a few details about the configuration files and the persistent
home in 0.6 alpha.
The configuration files are saved in an archive named configs.tbz. 
When saveconfig is called, the archive is rebuilt.
Besides it, the persistent directory (/home/knoppix) is saved in a
file named knoppix.img. So any change in the /home/knoppix might be available
at the next boot.
The dot emacs is under /home/knoppix and we could also expect that its
changes would be available at the next boot because of the persistent
home. This is not the case because at the next boot, the archive,
which includes the old dot emacs, will be used and will replace the
new dot emacs in the persistent home.

Cheers,
Gilles


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