Dear Live Debian users,I am trying to install my own home server using live debian Wheezy on a USB key. For the moment, I have enabled the persistence mode which works great. To do so, I have created a partition on the space left of the USB stick. Finally, I have created a persistence.conf file containing the line "/ union".Since the whole system and file system are written to the USB key, my main concern is how much the write process is done on the key. Obvisouly, I would like to make it as little as possible.So, my questions are the following:- could I manually specify by command line when the file system should be written into the usb key?- when exactly is done the write process? I am wondering if this is done when shutting down the server. If so, it could be a problem if a power failure happens.Thanks a lot for your advices!Franck